Site Definition Proposal

Illinois Basin Ultradeep Drillhole

Submitted by Site Definition Committee for the IBUD Consortium

P ropos al Ent i t l ed

I LL I NO I S BASIN ULTRADEEP DRILLHOLE S ITE DEF I N I T I ON PROPOSAL

For Submi s s i on To

DOSE CC , I nc . 7711 SW 103rd Ave.

Gai nes vi l l e , F l ori da 32608

and

Dept . of Ene rgy D i v i s i on of Eng i neeri ng & Geos c i ences

Offi ce of Bas i c Ene rgy Sci ences Was h i ngton , DC 20545

by

J . James E i del Il l i noi s State Geol ogi cal Su rvey

Make Grant To : The Boa rd of Trustees of the Univers i ty of I l l inoi s 506 South Wri ght St . U rbana , I l l i noi s 61801

Amount Requested : $ 3 ,820 ,950 ���......_�������-

P roj ect Peri od : 36 mont hs

P · 1 a Invest i gator s 34-28�0067

Mor ris Ch i ef

J . J . Kafne re r , Director . Grants and Cont racts Ad�i�ist r� i on

I l l i noi s State Geol ogi ca l Su rvey Un i ve rs i ty of I l 1 i noi s_,. f.>C?> � '?> •"'� \.'� .... �"' �­flJ.,. .;)'i �

Site Definition Proposal Illinois Basin Ultradeep Drillhole

Collaborative Study by Argonne National Laboratory Illinois State Geological Survey Northern Illinois University Purdue University Southern Illinois University University of Pittsburgh United States Geological Survey University of Texas, El Paso

Submitted by the IBUD Site Definition Committee

J. James Eidel, Project Director Illinois State Geological Survey 615 East Peabody Drive Champaign, Illinois 61820

William J. Hinze, Chairman, Steering Committee Department of Geosciences Purdue University West Lafayette, Indiana 47907

Printed by authority of the State of lllinois/19871200

CONTENTS

ABSTRACT

I NTRODUCT ION

The Scientific p robl em and the Ro l e of U l t ra-Deep D ril l ing Devel opment of the Dril l in g Pl an The Study Area Obj ectives of Site Definition Organizational P l an

OVERV I E W OF SCI ENCE PLAN

THE STUDY AREA

J u stification of the Hub Sit e A lternate D ril l ing Sites Regional Ba sement Geol ogy Regional Geol ogy of the I l l inois Basin St ratig raphy and St ruct u re of the Hub Sit e

RESEARCH PLAN

I nt roduction Geol ogic Studies

Pal eozoic Geol ogy Basement Geol ogy

Seismic Prog ram I ntroductibn Regional St ruct u re and Tectonics of I l l inois Basin Previous Seismic Studies of the Upper Missis sippi Embayment

and I l l inois Basin Obj ectives of Crustal Seismic Studies Nea r the Hub Area Research P l an for I BUD C rustal Seismic Studies Seismic P rofil es - Ref raction/Wide-Angl e Refl ection Seismic P rofil es - Deep Refl ection Data Seismic P rofil es - Regional Refl ection P rofil es Seismic P rofil es - Detail ed Refl ection Data Dat a Acquisition and Processing I nte rp retat ion

Potential Fiel d Studies Magnetotel l u ric I nvestigations

ADM I N I STRAT I VE STRUCTURE AND MANAGEMENT PLAN

I nt roduction Administ rative St ru ct u re Management P l an

I ntegration of Studies Rol e of I nvestigative Teams Rol e of Steering Committee Rol e of Site Definition Advisory Committee

7

8

13

16

32

58

SCHEDULE OF ACT I V I T I ES 6l

PERSONNEL

REFERENCES

BUDGET EX PLANAT I ON

BUDGET SUMMARY AND DETAIL

V I TA

64

66

72

72 a

84

ILLUSTRATIONS

1 . Hub site and other sit es recommended by ! BUD Work s hop ••• 1 1

2 . New Mad rid Rift Comp l ex ••• 14

3 . Schematic Diag rams il l ustrating the p l ate reconst ruction of the North Ame rican c raton and interactions with adj acent p l ates and geol ogic activity of the New Mad rid Rift Comp l ex ••• 15

4 . Seismic Ref l ection Profil e across Rou gh Creek Graben ••• 18

5 . Bouge r G ravity anomaly map of the cent ral midcontinent region , North America ••• 19

6 . Band- pas sed Bou gue r Gravity anomaly map of the cent ra l midcontinent region , North Ame rica ••• 20

7 . Aeromagnetic map of cent ra l midcontinent region , North Ame rica • • • 21

8 . Upward continued , reduced to pol e composite magnetic anomaly map of the cent ral mid continent region , No rth America ••• 22

9 . St ruct u ra l featu res of the I l l inois Basin and adj acent area s • • • 23

10 . I ndex map showing deep d ril l hol es in the cent ral midcontinent region , North America ••• 26

1 1 . Bed rock geol ogy of I l l inois Basin and adjacent areas ••• 27 .

12 . · St ratig raphic Col umn of Eastern Midcontinent ••• 30

13 . Hypothetical cross section of the Rou gh C reek G raben of western Kentucky ••• 31

14 . I ndex map of New Mad rid Rift Comp l ex ••• 37

1 5 . Schematic bl ock diag ram il l ust rating the st ructu re of the c rystal l ine c ru st and Phane rozoic sedimentary basins beneath the New Mad rid Rift Comp l ex in the upper Mississippi Embayment and I l l inois Basin ••• 38

16 . Contou r map of ea rthquake seismicity ••• 39

17 . Upper Mis sis sippi Embayment c rustal model s across the Reel foot Rift ( u pper diagram ) and al ong the axis of the Reel foot Rift ••• 41

18 . I ndex map of the Wabash Val l ey Fau lt region of southeast ern I l l inois and southwestern I ndiana ••• 43

1 9 . Exampl e of seismic refl ection data fo r the Wabash Val l ey refl ection su rvey ••• 44

20 . Composite seismic refl ection record section of the East end of the G rayvil l e l ine and west end of t he New Ha rmony l ine of the Wabash Val l ey seismic data ••• 45

21 . Northwest to southeast schemat i c cros s -sect i on of the upper crust across the Wabash Val l ey Faul t System i n sout heast ern I l l i n oi s and southwestern I ndi ana ••• 46

22 . Locat i ons of proposed refract i on and deep sei smi c refl ect i on to be reco rded i n the Hub area ••• 48

23 . Proposed sei smi c refl ect i on profi l es near the Hub s i te • • • 49

24 . Dep l oyment p l an for I BUD sei smi c stud i es . . . 50

. 25 . I BUD Si te Defi n i t i on Management P l an ••• 60

TABLES

I . Avai l abl e Samp l es from Hub Area at t he I l l i n oi s and Kentucky Geol ogi cal Surveys ••• 33

I I . Li st of Deep Dri l l hol es to Bas ement or P re-Mt. Si mon Sandstone i n the I l l i noi s Bas i n and Adj acent Areas ••• 34

I I I . I BUD Sei smi c P rofi l es ••• 51

I V. Schedul e of Act i v i t i es ••• 62

ABSTRACT

Of the many geol ogic pro bl ems associated with the continental crust, perhaps none is as significant as the origin and history of cratonic basins . There are more than 80 crato nic basins in the worl d . Many of these are known to have underl yin g rifts . The I l l inois Basin is an intracratonic basin cl osel y associated with the underl yin g New Madrid Rift Compl ex . !BUD is proposed at or near thickest section of stratified rocks ( 7 to 8 kil ometers) in the I l l inois Basin . The hol e wil l be designed to test the hypothesis that the I l l inois Basin is genetica l l y rel ated to the underl ying rift system . Data from the hol e wil l hel p reso l ve one of the great mysteries of geoscience, the origin of cratonic basins .

Dril l in g of the ! BUD was recommended at a wor kshop of more than 120 earth scientists, hel d in Champaign, I l l inois, in April 1986 . The workin g grou ps of the worksho p unanimousl y sel ected a 10,000- square-kil ometer area centered near the town of Sal ine Mines in southeasternmost Gal l atin County, extreme southeastern I l l inois, as the prime area for the !BUD l ocation; the area is cal l ed the "Hub site" because it overl ies the Reel foot Rift, the Rough Cree k Graben and the two postul ated arms of the New Madrid rift compl ex . The workshop determined that more geo physical data are essential to define the precise dril l site for ! BUD . I n response, this site definition proposal provides a precise program of geophysical and geol ogical studies for !BUD site definition .

Site definition wil l ta ke pl ace in three phases . Phase I involves regional gravity, magnetic, refraction seismic, deep and intermediate depth refl ection seismic, and magnetotel l uric surveys in and around the Hub site . These surveys wil l refine our knowl edge of regional geol ogy at depth and wil l focus site sel ection on a sma l l er area . I n Phase I I, detail ed surveys, main l y high-resol ution seismic profil es, wil l be made in the smal l area chosen in Phase I . From the data obtained in Phase I I a precise dril l site for the ! BUD wil l be sel ected . Phase I I I incl udes intergration of resul ts and a Site Sel ection Worksho p to recommend the ! BUD site .

The site sel ection program is expected to require a bout 2 1/2 years and to cost approximatel y $3.8 mil l ion . Costs are prel iminary and su bject to further negotiation, in part, because geophysical contract prices can not be hel d to cost estimates if the economics of the oil and gas industry improve and because determination of indirect costs is dependent u pon the source of fun ds and the timing of appropriations .

I NTRODUCT I ON

The Sci ent i fi c P robl em and the Rol e of U l t radeep D ri l l i ng

Desp ite more than 140 yea rs of i nten s i ve study based on shal l ow expl orat i on for oi l , gas , and mi neral s , the h i story of the I l l i noi s Bas i n-­part i cu l arly the ea rly hi story-- i s poorly known becau se deep dri l l i ng and core samp l es a re ra re and the l ower 3 , 000 mete rs ( 1 0 ,000 feet) of l aye red rocks are u ndr i l l ed . Of a l l the geol ogi c p robl ems of the cont i nental c rust , probably no s i ng l e probl em is as s i gn i f i cant or has as many rami fi cat i ons as the ori gi n and h i story of i nt racratoni c bas i ns such as the I l l i noi s Bas i n . The answer to th i s p rob l em remai ns el us i ve ( S l eep et a l . , 1980 ; Qui n l an and Beaumont , 1984 ; S l oss , 1986 ) .

There a re more than 80 craton i c bas i ns i n the worl d . Many of these are u nderl a i n by ri fts ( Ba l l y and Snel son , 1980 ; Kl emme , 1980 ; and St . John , Bal ly and Kl emme , 1984 ) . Geol ogi c and geophys i ca l evi dence ( L i d i ak , 1982 ; DeR i to et a l . , 1983 ; Kel l e r et a l . , 1983) suggests that ma ny , i f not a l l , i nt racratoni c bas i ns are underl ai n by ri ft s . Such i s the case of the I l l i noi s Bas i n ( B ra i l e et a l . , 1986 ) . Therefore , i t i s p roposed that a 9 ki l ometer ( 30 ,000 foot) u l t radeep hol e be dri l l ed at or nea r the deepest pa rt of the I l l i noi s Bas i n to exp l ore the rel at i ons h i p between th i s i nt racraton i c bas i n and the associ ated , underl y i ng ri ft . The dri l l ho l e wi l l p rovi de an opport u n i ty to determi ne the early h i story of the I l l i noi s Basi n , i ts p resent geo l og i c and geophys i cal characteri sti cs , and i mportant const ra i nts on the theori es of ori gi n of i nt rac raton i c bas i ns . The I l l i noi s Bas i n i s pa rt i cu l a rly wel l sui ted to such an i n vest i gat i on because of the cons i derabl e data base ava i l abl e from recent geol og i c mappi ng , geophysi cal studi es , tens of thousands of avai l ab l e samp l es from dri l l ho l es , and the spat i a l and tempo ra l cont i nuum that exi sts between the sag porti on of the I l l i no i s Bas i n and t he u nderl yi ng ri ft .

The I l l i noi s Bas i n i s an i nt rac raton i c sed i ment a ry bas i n cl osely associ ated wi th a comp l ex , an ci ent ri ft zone : the New Mad r i d R i ft Comp l ex ( B ra i l e et al . , 1982 ) . Howeve r , the s i gn i f i cance and the nat u re of the as soci at i on between the ri ft and the bas i n i s at the p resent t i me specu l ati ve. Th roughout most of the 350 mi l l i on yea r h i story of subs i dence i n the I l l i noi s Bas i n , the appa rent depocenter was s i tu ated near the i nters ect i on of the Reel foot Ri ft , the Rou gh Creek Gra ben , and the geophys i cal ly defi ned Southern I ndi ana and St . Lou i s arms of the New Mad rid R i ft Comp l ex .

The pri ma ry obj ect i ves of the I l l i n oi s Bas i n u l t radeep dri l l h ol e ( I BUD) sci enti fi c p rog ram a re to i n vest i gate the natu re and st ructu re of app roxi mat ely 3000 meters ( 10 ,000 feet) of p revi ou s ly unsamp l ed ri ft -fi l l rocks bel ow the I l l i n oi s Bas i n , study the cha racter of the basement rocks that u nderl i e the ri ft , and p rovi de data to hel p const ru ct a detai l ed thermal and subs i dence h i story of the bas i n and the p reced i ng ri ft . The exi stence of these ri ft- rel ated sed i ments beneath the I l l i noi s Bas i n has recent ly been confi rmed i n the Ree l foot R i ft a rea by sei smi c refract i on ( Mooney et a l , 1983 ; Gi nsburg et al , 1983 ) and refl ect i on ( McKeown , 1984 ) studi es as wel l as by d ri l l i ng ( Den i s on , 1984) , i n the Waba sh Val l ey a rea by refl ecti on profi l i ng ( Sexton et a l , 1986 ) , and i n the Rough Creek Graben f rom gravi ty mode l i ng ( Sode rbe rg and Kel l e r , 1981 ) and p rop ri eta ry refl ect i on data . Th i s i nformat i on wi l l establ i s h i mportant cons t rai nts on the ori g i n of the ba si n

9

and as such will be useful for testing the nu111erous theories that have been proposed to explain intracratonic, platform basins (Bally, 1980).

The IBUO will also provide critical geophysical parameters that heretofore could only be estimated from data collected at the surface or in shallower drillholes. Pararieters such as density, magnetic polarization, seisriic velocity, electrical resistivity, and thermal conductivity will be deterriined at depths and from lithologies currently not available. These physical properties will play an important role in more precise modeling and interpretation of geophysical data.

The New Madrid Rift Complex, particularly the Reelfoot Rift, which lies along the axis of the northern Mississippi Embayment, has historically been the most active seismic region east of the Cordillera. In the winter of 1811-1812, a sequence of at least three major earthquakes occurred in .the Reel foot Rift. A repeat of such events today would cause damage in the hundreds of millions of dollars and loss of lives in the thousands. Seismologists agree that this region continues to represent a considerable threat to the country and one where there are significant gaps in our understanding of mechanisms and causes of the earthquake activity. The IBUD experiments will address those gaps by providing basic knowledge of earthquakes and their relation to the rift corriplex and in permitting in situ stress measurements in a seis111ically critical region at various depths, including depths at which 111any earthquakes occur.

Development of the Drilling Plan

In the mid-1970s the U.S. Geological Survey (USGS) and the U.S. Nuclear Regulatory Commission (NRC) initiated intensive seismo-tectonic research related to the earthquake hazards in the region of the New Madrid, Missouri. The USGS conducted numerous surface and suhsurface studies, including shallow drilling, as well as intensive seismic and potential field investigations in the New Madrid region (McKeown and Pakiser, 1982). This work, sparked hy potential-field data and corroborated by seismic reflection data, led to the identification of a late Precaribrian-early Cambrian rift by Hildenbrand et al. ( 1977), as previously suggesterl by Ervin and McGinnis ( 1975).

During the same period, the NRC established a seismo-tectonic research consortium of central midcontinent university and state survey researchers (Buschhach, 1986). The studies by this consortium were wide-ranging in scope, discipline, anrl geographic area; but a major emphasis was placed on the �orthern extension of the New Madrid Seismic Zone across the 38th Parallel Lineament and into the Wabash Valley Fault zone of southern Illinois and Indiana. These and related studies provided evidence of the Reelfoot Rift (Mississippi Valley Graben) in western Kentucky and southern Illinois and a connecting easterly arm--the Rough Creek Graben (Moorman Syncline)--in western Kentucky (Soderherg and Keller, 1981; Schwalb, 1982; Hildenbrand and Keller, 1983). These grabens were interpreted from gravity, magnetic, and seismic reflection data and were corroborated by petroleum exploration drillholes that bottorried in deep, grahen-filling sedimentary rock sections (Schwalb, 1982). Related geophysical studies (Braile et al., 1982; Sexton et al., 1986) indicated two other arms of the New Madrid Rift Co111plex--one arm reaching northeastward into southern Indiana and another arm extending northwestward along the Mississippi River. The intersection of the four arms of the rift complex was designated the Hub site; it underlies the depocenter of the Illinois Rasin.

10

Recognition of the significance of the relationship between the late Precambrian-early Cambrian rift complex to the Illinois Basin encouraged the Illinois State Geological Survey to propose an ultradeep drillhole into the Illinois Basin and underlying rift to provide continuous core from the sedimentary section and sample basement rocks below the rift. This proposal in 1985 led to a workshop to elucidate the primary and secondary scientific objectives of the drilling and to prioritize potential drilling sites. This workshop, held in April 1986, resulted in the preparation of a preliminary Plan for Science and this proposal for Hub site definition and site selection.

Study Area

The New Madrid Rift Complex presents an ideal target for ultradeep scientific drilling into the craton because it has had a profound effect either directly or indirectly upon the tectonic history of the midcontinent from late Precambrian time to the present (Kane et al., 1981, Keller et al., 1983, and Braile et al., 1986). The location, lithologic character of the related sedimentary and igneous rocks, and the structural attributes of the rift complex are currently known only from geophysical data and a few widely spaced drillholes, none of which penetrate the layered rocks of the rift or basement rocks below the rift. The scientific merits of ultradeep drilling into four general areas of the rift complex were considered during the April 1986 workshop (fig. 1). Although each of these areas offers particular scientific advantages, it was the unanimous decision of all disciplines represented at the workshop that the optimum site for ultradeep drilling is at the coincident hub of the New Madrid Rift complex at or near the depocenter of the Illinois Basin.

The 11Hub11 area, as shown in figure 1, is a square region 100 kilometers (62 miles) on a side centered near the town of Saline Mines in southeastern Gallatin County, Illinois. The area includes portions of southeastern Illinois, western Kentucky, and southwestern Indiana. This site includes a host of pertinent geological and geophysical features in addition to the intersection of the four postulated arms of the rift complex. Available geophysical data indicate that the basement lies at a depth in excess of 7 kilometers (23,000 feet) near the intersection of the Reelfoot Rift and the Rough Creek Graben. The lower 3000 meters (10, 000 feet) of this section has never been drilled.

Objectives of Site Definition

Current geologic knowledge of the New Madrid Rift Complex and the deeper portions of the Illinois Basin are known mainly from regional potential field data, proprietary seismic reflection profiles, and a few scattered drillholes that do not penetrate the entire section. As a result, inte�pretations �f the nature of these rocks and related tectonic models are regional in type and poorly constrained hy integration of varying types of data from different sources. Although independent geophysical and geologic interpretations agree on the general location of the intersection of the Reelfoot Rift and the Rough Creek Graben and the approximate depth of the hasement, the highly detailed data regarding lithologic units and their structure that are required for optimally locating the hole for scientific purposes is not available. Furthermore, the regional geologic framework of the crust affected by rifting needs to be established in order to hypothesize tectonic models for the rift and subsequent intracratonic basin development.

I 91° I

90° I 89° I

88°

Figure 1 . Hub site and other sites recommended by IBUD Workshop.

o 30 60 mi \-� ....... ........ -lr--· ........... -mLl o 50 100 krn

I 87° I 86°

-40°

I 85° -36"'

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The s i t e defi n i t i on phase of the ! BUD project wi l l have two pri ma ry goal s . Fi rst , the i nvest i gat i on wi l l i n vol ve cha racter i zat i on of the c ru st to establ i s h the cru stal f ramework of the Hub reg i o n . Data from the sedi ment ary and c rysta l l i ne basement rocks wi l l del i mi t the gene ral l oca l i ty for t he !BUD and wi l l p rovi de the regi onal backg round or framework for i nterp ret i ng the resu l ts of d ri l l i ng , then devel opi ng and test i ng tectoni c model s . Second , the study wi l l i ntens i vely i nvesti gate the l ocal i ty sel ected for the dri l l i ng duri ng the i n i t i al phas e . Based on the resu l ts of t he regi onal i n ves t i gat i o n , the second phase wi l l focu s on defi n i t i on of a dri l l s i te t o accomp l i s h the p ri ma ry obj ect i ve of the ! BUD and as many rel ated obj ect i ves as possi b l e . The second phase of s i te defi n i t i on wi l l focus on maxi mi z i ng the sci ent i f i c resu l ts from dri l l i ng and defi n i ng obstacl es to comp l et i on of the hol e s o that they mi ght be avoi ded .

The f i rst phase extend i ng ove r a 12-month peri od wi l l i nvo l ve ( 1 ) t he acqu i s i t i on and analys i s of regi onal refl ecti on and deep c ru stal sei smi c , gravi ty , magnet i c , and magnetotel l u ri c data , and ( 2 ) the synt hes i s of al l avai l abl e geol ogi c i nformat i on . A geol og i c model f rom t he upper mant l e to the su rface wi l l be devel oped th rough an i t erat i ve p rocess wi t h i ncrea s i n g p rec i si on and resol ut i on towa rd t he su rface and the center of t h e Hub a rea. Detai l ed ref l ect i on sei smi c , gravi ty , magnet i c , and magnetotel l u ri c geol ogi c studi es over the second 12-month peri od wi l l p rov i de a detai l ed geol ogi c model to a depth of app rox i mately 15 k i l ometers ( 9 mi l es ) . An app rox i mat ely 15 by 15 k i l ometer regi on ( 9 by 9 mi l es ) wi l l be i dent i fi ed as the opt i mum a rea for second phase stud i es . P repa rat i on of the detai l ed model of the !BUD s i t e wi l l necessari ly i nvol ve cl ose coordi nat i on and i ntegrat i on of dat a . The res u l tant , detai l ed model shou l d permi t pred i ct i on of the geol ogy to be encountered by u l t radeep dri l l i ng anywhere wi th i n the 15 by 15 k i l ometer ( 9 by 9 mi l es ) s u rvey area .

Organ i zat i on P l an

To ach i eve the goa l s of the s i te defi n i t i on phase of the !BUD project i n a t i mely and cost-effect i ve man ner requ i res an organ i zati on wi th bui l t- i n check s and bal ances and effi ci ent commu ni cat i on both among the vari ous i n vest i gat i ve teams and between these teams and the ! BUD management . A f i ve­man S ite Defi ni t i on Steeri ng Commi ttee wi l l prov i de l i ason between the ! BUD management , !BUD sci ent i fi c advi sory commi ttee , and t he i nvesti gat i ve teams . The S ite Defi n i t i on Steeri ng Commi ttee wi l l be respon s i bl e for the resu l t of the sci ent i fi c phase of the ! BUD proj ect . The commi ttee wi l l en s u re that the teams i nteg rat e the i nterp retat i ons of other !BUD Workshop Work i ng G rou ps i nto thei r i nterp retati ons and , wi th t he ai d of an external S i te Defi n i t i on Advi sory Commi ttee , wi l l mon i tor al l el ements of the studi es from pl a n n i ng to i nterpretat i on .

The acqu i s i t i on and i nterp retat i on wi l l be ca rri ed out by crustal sei smi c , sei smi c refl ect i on g rav i ty , magneti c , magnetotel l u ri c , and geol ogy teams under a chai rman The teams wi l l prepare repo rt s i n a t i mely manner for publ i cat i on i n j ou rnal s as wel l as for p resentati on to a S i te Sel ect i on Panel . A work shop wi l l be hel d by the S ite Sel ect i on Panel , wh i ch wi l l i ncl ude the S i te Defi n i t i on Commi ttee . The Panel wi l l be respon s i b l e for recommend i ng a dri l l i ng s i te to the !BUD management . Fol l owi ng peer revi ew by the ! BUD Sci ent i fi c Advi sory Commi ttee as wel l as the l and acqu i s i t i on and techn i cal eval uat i ons , the ! BUD management wi l l recommend the !BUD s ite and poss i b l e a l ternat i ve s i tes to the DOSECC-Sci ent i fi c Ad vi sory Committee.

13

The IBUD site definition administration and management are discussed below under Administrative Structure and Management Plan.

OVERV IEW OF SCIENC E PLAN

The key objective or experiment of the IBUD is to test the hypothesis that the Illinois Basin is genetically related to the underlying rift system, thus providing constraints on the theories of origin of intracratonic basins.

The Illinois Basin is an intracratonic basin associated with a complex, reactivated Cambrian and, possibly, older rift zone. Through most of 350 million years of subsidence, the depocenter of the Illinois Basin was situated near or above the intersection of the Reelfoot Rift, the Rough Creek Graben and the postulated southern Indiana and St. Louis arms of the New Madrid Rift Complex (fig. 2). To the best of our knowledge, nowhere else in the United States can an ultradeep drillhole penetrate a spatially and temporally continuous column of stratified rocks and fluids from an overlying sag basin to and through an underlying rift basin. Braile et al. (1986) have presented a model for the interaction between the North American craton and adjacent plates and the resulting effect on the geologic activity of the New Madrid Rift Complex since late Precambrian time (fig. 3).

Information concerning crustal structure of the midcontinent region, obtained primarily from regional geophysical studies, has confirmed the existence and reactivation of the ancient rift system and suggests the manner in which future geological and geophysical studies should proceed in order to understand intracratonic basin-forming processes. The geophysical data to be acquired downhole and physical measurements on core will facilitate recalibration and reinterpretation of the body of midcontinent data acquired to date, thus improving and extending existing interpretations.

The focus of the IBUD scientific experiment is to study the 3000 meters (10,000 feet) of largely unsampled Phanerozoic sedimentary rocks in the rift basin below the sag basin in order to obtain a more complete thermal and subsidence history of the Illinois Basin. The thermal history will be addressed by independent, complementary methods including fission track and radiometric dating, maturation temperatures of organic matter, clay and other mineralogic phase chages, and fluid inclusion temperatures from sedimentary and basement rocks. A detailed and complete subsidence history will be available for the first time from a sag-rift transition. The IBUD drilled to a depth of roughly 9 kilometers (30,000 feet) will provide the maximum amount of data available to investigate the origin of the rift-related intracratonic basin anrl widely synchronous reactivation.

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Figure 2. New Madrid Rift Complex and midcontinent tectonic setting (modified from Braile et

al., 1 984).

A

LATE PRECAMBRIA N - INCIPIENT\RIFITING, FORMATION OF TRIPLE JUNCTIONS

Figure 3. Schematic diagrams illustrating the plate reconstruction of the North American craton and interactions with adjacent plates and geologic activity of the New Madrid Rift Complex (after Braile et al. , 1 984).

16

In addition to this primary objective, an ultradeep hole in the Hub area will have related scientific objectives:

- Drill through the rift-bounding fault within the pre-Phanerozoic basement, thus increasing the possibility of intersecting contrasting basement rocks.

Locate potential field and possibly, seismic anomalies that will define a drillable basement pluton, in order to provide additional age constraints on rifting and reactivation.

- Intersect deep intrabasement seismic reflectors, if reflectors similar to those observed north of the Shawneetown Fault exist south of the fault.

- Determine the presence or absence and thickness, if present, of the 1420 to 1500 Ma anorogenic felsic terrane and the presence or absence of the underlying Central Plains Province or older 1700 to 1900 Ma crust as inferred by Nd-Sm signatures.

- Determine the physical state of the upper crust at a depth approaching the level of some regional earthquake foci near the transition or dogleg from the northeast trending Reelfoot Rift and the east-trending Rough Creek Graben in a region that experiences some 200 earthquakes per year.

- Determine the nature and alteration of the sedimentary rocks in the deeper part of the Illinois Basin as juxtaposed to equivalent basin margin sedimentary rocks and a complete sedimentary and diagenetic history of a sag-rift sequence in an intracratonic basin. The objective is to utilize complete carbonate and elastic depositional and diagenetic histories to identify paleoclimatic, paleogeographic and paleoenvironmental events for correlation with global intracratonic and pelagic events includng periodicity of anoxic events, global sedimentary cycles, and sea-level fluctuations.

- Construct a continuous, shallow crustal fluid profile to compare with the largely fragmentary data from fluids arriving at basin margins and from water and deeper oil wells; and determine the age and composition of waters in the rift and basement environment, the rock-water inter­actions that alter deep fluid compositions, and the source of Illinois Basin brines � ultrafiltration or dissolution of evaporites. Deep fluids play a major role in the chemical and isotopic evolution of shallower sediment-hosted waters and also provide constraints on understanding the evolution of the Illinois sag and rift basin.

THE STUDY AREA

Justification of the Hub Site

Immediately preceding the !BUD Workshop in April 1986 , the Geophysics Committee met to review the status of geophysical studies of the New Madrid Rift Complex and the Illinois Basin including crustal geology interpretations derived from these studies and related geologic information. The committee

17

had access to published and on-going research by federal and state agencies and university researchers, and also to proprietary seismic reflection profiling by three independent organizations. Examples of the geologic structure of the Rough Creek Graben as indicated by seismic reflection profiling is illustrated in fig. 4 ; no geographic location is specified to preserve the confidentiality of these data. After reviewing the available data, the committee selected four general areas for drilling into the New Madrid Rift Complex and prioritized these sites. The sites as shown in fig. 1 are in order of priority the Huh, the Wabash Valley, the Rough Creek Graben, and Reelfoot Rift areas. These sites were presented to all working groups at the workshop. All committees supported the Huh site as the highest priority drilling region.

The Hub site was selected because it is the coincident position of the intersection of the four postulated arms of the New Madrid Rift Complex and the apparent depocenter of the Illinois Basin (fig. 2) . The thickest section of Paleozoic rocks in the Illinois Basin is probably located within the Hub site. Proprietary seismic reflection data and puhlished gravity (figs. 5 and 6) anrl magnetic (figs. 7 and 8) anomaly data near the intersection of the Rough Creek Graben and the Reelfoot Rift indicate a total thickness of stratified rocks in excess of 7 kilometers ( 23 ,000 feet). The lower 3000 meters ( 1 0 , 000 feet) or more of the graben-fill have not been sampled. A knowledge of these rocks and the nature of the structure in this region are required for the study and understanding of the rifting process and its relationship to the formation of the Illinois Basin.

Additional factors recommend a high priority be placed on the Huh site as the IBUD drill site. The proposed location is a major geophysical lineament prominent in the magnetic anomaly data (figs. 7 and 8). It extends for hundreds of kilometers (Hildenbrand et al., 1980 ; Ravat, 1984 ) from eastern Tennessee to southern Illinois and is called the Tennessee- Illinois-Kentucky lineament. As a large positive magnetic anomaly trending northwest-southeast across Illinois, the lineament has exceedingly steep gradients on its southwestern flank. The intrahasement geologic source of this anomaly may be attainable hy the IBUD within the crystalline basement. A localized magnetic high on the lineament (fig. 7) represents a marginal mafic intrusive similar to those that have been used to outline the New Madrid Rift Complex (Hildenbrand et al., 1977 ; Braile et al., 1982) . Drilling the IRUD to a depth of the source of this magnetic anomaly would provide valuable samples for determining the nature and age of the intrusive and of rifting. The possibility of drilling an intrusive emplaced within the rift margin and the rift-hounding structure within basement in the same hole is a goal that will be evaluated.

A large portion of the relatively aseismic Fluorspar Area Faulted Complex (fig. 9) of southeastern Illinois and western Kentucky lies �ithin the Hub area. The aseismicity of the Fluorspar Area Faulted Complex is interesting because this area separates the seismically active New Madrid Seismic Zone from the less active Wabash Valley Fault System area.

Alternate Drilling Sites

The three other areas considered for the site of the IBUD (fig. 1) are in order of priority: the Wabash Valley, the Rough Creek Graben, and the Reelfoot Rift areas. The Wabash Valley area is particularly interesting

, .• V"AV ,..._, , """"'"

Figure 4 Seismic reflection profile across Rough Creek Graben.

35° 9/0 90° 89°

85° 870 860 '-----"'

�390

AV' >' ' " \ ' I ol 0 �<f/U� �

88° 87° 86°"

Figure 5. Bouguer g·ravity anomaly map of the centrafmidcontinent-region, North America (modified from Keller et aL, 1 980).

a1° 40°'-t---��-r-1�--�,...,. .... .,...._,...,...--....... ��--,..+.,....""""'"'��+40°

g1o goo ago aa0

37

36°'.,..------w..i+--'-"-"""'-��-'-�--............ ;;;_��...-..... .i...i. ......... .,.36° g2° g I 0 goo ago aao a7°

Figure 6. Band-passed Bouguer gravity anomaly map of the central midcontinent region, North America (modified from McGinnis, 1 984).

92° 39° + 91°

+ 88°

38° + +

I o 20 40 60 mi I � 20 40 60 80 km

37° +

36° +

35° + 920 910 900 890 880 870

Figure 7. Aeromagnetic map of central midcontinent region, North America (modified from Johnson et al. , 1 980).

86°

86°

92° 91° 90° 89° 88° 87°

,....,""""" __ � __ ..., ______ ,........,.._.�..,..,.. ... �-------+---����40°

37

360-+-__ ...... ____ �....;;;;;;... __ ""'�l--�l.....----�.J-�--...i.....---'----..... �36°

92° 91 0 900 990 88° 87°

���l�Jllii ���lliu:��� ;.goo nT

Figure 8. Upward continued, reduced-to-pole composite magnetic anomaly map of the central midcontinent region, North America (modified from Ravat, 1 984).

Figure 9.

anticline syncline

monocline fault; ticks on downthrown side crypto-explosive or impact structure

o 30 60 mi f--- ----',.- .... ----'; O 50 100 km

Structural features of the I llinois Basin and adjacent areas. (Nelson, 1 986)'.

24

becau se i t would sample the pre-Mt . Si mon coherent reflect i ng events mapped by Sexton et al. ( 1986} and i nterpreted as g raben-fi ll strat i fi ed rocks wi thi n the Southern I nd i ana a rm of the New Mad ri d Ri ft Complex . To thi s date there is no d i rect i nformat i on on the nat u re of the p re-Mt . S imon sed i mentary rocks i n thi s regi on except for a d r i llhole i n Lawrence Cou nty , Indi ana , that encou nte red bas alt and red elast i c sed i ment a ry rocks ( Ke rst i n g , 1982) , whi ch a re s imi la r to rocks occu r ri ng i n the Keweenawa n Mi dcon t i nent Ri ft Sys tem of northern Mi chi gan , Wi scons i n and Mi nnesot a . An ult radeep d ri llhole in the Wabash Valley could determi ne the cause of the rema rkably cohe rent basement reflect i ons that appear on reg i onal prop ri eta ry sei smi c p rofi les i n the a rea . Thes e reflect ors d i p t o the north f rol"l southe rn Illi no i s and cont i nue to depths in excess of 4 seconds of two-way t ravel t i me .

The eastern Rough Creek Graben s i te li es south of the Rough Creek Fault System wi thi n the g rahen east of the Hub a rea i n west-cent ral Kentucky . The pr i nci pal object i ve of thi s hole would be to p rovi de a cont i nuous rock co re for sci ent i fi c study obtai ned i n port i on of the g raben whi ch has less s t ructu ral complex i ty than present in the Hu b a rea .

The Reelfoot Ri ft a rea near New Mad ri d , Mi ssouri , i s cente red on the relat i vely short northwest-southeast segment of the New Mad ri d Sei smi c Zone and is cha racteri zed by hi gh sei smi c i ty . The sei smi c i ty of thi s zone is not as soci ated wi th ri ght-late ral focal mechani sms as commonly obse rved i n the New Mad rid a rea , but rather wi th sli p page on hi gh-angle reverse faults . The maj o r , no rtheast-t rendi ng p a rt of the zone i nvolves r i ght-lateral wrench fault i ng . St ress measu rements i n thi s hole would be parti cula rly i nterest i n g . The hole could als o sample the Bloomfi eld pluton , one o f the maj or ma rgi nal i nt ru s i ves of the ri ft complex ( H i ldenb rand et al. , 1977 ) and answer the maj or questi on of the geologi c hi sto ry of the New Mad r i d Ri ft Complex , i . e . the age and ori g i n of ri ft-marg i n plutons .

Regi onal Basement Geology

The ma i n deep st ruct u re at and nea r the basement su rface i n the Illi noi s Bas i n i s the New Mad rid R i ft Complex (fi g . 2 ) . The ri ft complex i s outli ned by b road g ravi ty and magnet i c anomali es on whi ch are superi mposed a seri es of hi gh-ampli tude , ci rcular g rav i ty and magnet i c hi ghs that form a li near a rray ( Br a i le et al . , 1982) . The r i ft complex has been the s i t e of complex faulti n g , depos i t i on , eros i on , mafi c i gneous i nt rus i on , and mi ne rali zat i on du ri ng the Phanerozo i c . Regi onal geophysi cal map s (Hi ldenbrand et al. , 1977 ) ; Johnson et al . , 1980 ; Keller et al . , 1980) and spa rse deep d ri lli ng suggest that maf i c i gneou s rock s are nei ther wi des pread nor volum i nou s i n the ri ft complex , but that the s i te i s i n stead fi lled mai nly wi th ri ft-related sed i ment a ry rock s .

Seventeen deep wells have been dr illed i nto the ri ft complex (f i g . 10) . Of these , ten have penet rated Mt . S imon ( Upper Cambri an ) or p re-Mt . S imon felds pathi c sed i mentary rock s and two have encou ntered ophi t i c bas alts of uncertai n age ( table I I ) . It i s apparent from this d i stri buti on that these basalts , the p re-Mt . Si mon sedi mentary rock s , and pos s i bly the Mt . Si mon sed i mentary rocks a re p reserved i n thi s anci ent ri ft complex and help deli neate i t .

The ri ft complex developed on an older Precamb ri an basement that i s pa rt of an extens i ve anorogeni c fels i c i gneous provi nce , occupyi ng most of the

25

cent ra l craton of the Uni ted States south of the Canad i an Shi el d . Thi s p rovi nce , genera l ly referred to as the g ran i te - rhyol i te te rrane , con s i sts of ano rogeni c epi zonal grani tes and rhyol i tes whi ch formed 1 , 340 to 1 , 400 Ma and 1 ,480 Ma ( Bi ck ford et a l . , 1986 ) . Rocks of thi s te rrane a re exposed in the nea rby St . Francoi s Mou ntai ns and occu r i n the subsu rface of the I l l i noi s Bas i n . F i gu re 10 shows that 1 1 d ri l l hol es penet rated g ran i te or rhyo l i te of thi s terrane north of the ri ft compl ex i n I l l i noi s and one penet rated rhyol i t e south of the compl ex i n Ten nes see ( Hol e 21 ) .

Othe r basement rocks that are not part of the grani te- rhyol i te terrane a re a l so p robably p resent i n the basement beneath the I l l i n oi s Bas i n . An examp l e i s the grani te gnei ss recently dri l l ed a l ong the Pascol a Arch i n Mi s s i ss i ppi Cou nty , Arkans as , Hol e 24 ( fi g . 10 and tab l e I I ) . Thi s gnei ss i s of unknown age and i s di sti nct ly di fferent from the anorogeni c grani tes ( Deni son , 1984 ) . It may be pa rt of an ol der orogen i c su i te . S im i l ar rocks occu r i n northern Mi ssou ri , Kansas , Nebraska , and Col orado , and a re part of the east-t rendi ng Cent ral Pl ai ns O rogen ( S i ms a nd Peterman , 1986 ) . Thi s 1 ,600- to 1 ,800-Ma orogen appa rent ly t ru ncates the ol der no rthwes t-t rendi ng T rans-Hudson Orogen in no rthe rn Nebraska or southe rn South Dakota ( Bi ckford et al . , 1986 ) . Recent analys i s of regi onal magnet i c and gravi ty anoma ly and deri vat i ve maps ( e . g . L i d i ak et a l . , 1985 ) , i nd i cate that northwest- and west­no rthwest-t rendi ng anoma l i es extend from the Dakotas and Nebras ka south­eastwa rd through the I l l i noi s Basi n . These broad anomal i es a re appa rent ly u n rel ated to the grani te- rhyol i te terrane . and may refl ect the extens i on of the ol d orogens i nto southe rn and east-cent ral U n i ted States . I f thi s i s correct , they rep resent the basement on whi ch the gran i te- rhyol i te terrane fo rmed . The Nd-Sm s i gnatu re of the anorogen i c grani tes and rhyo l i tes i s con s i stent wi th thi s i nterp ret at i on , i nd i cat i ng thei r deri vat i on from 1 , 700 to 1 , 900 Ma crustal rocks ( Nel son and DePaol o , 1985 ) .

Recent sei smi c refl ect i on data from Sexton , et al . ( 1986 ) and unpubl i shed data from Uni ted Sei smi c Data B rokers , I nc . , show st rong sub-hori zontal ref l ect i ons wi thi n the basement comp l ex north of the Rough Creek Fau l t Zone and the Hub s i t e . The refl ectors d i p towa rd the north and a re under l a i n by sei smi cal ly mo re t ransparent materi a l . The presence of gra n i tes and rhyol i tes i n the nearby basement of th is regi on ( fi g . 10 ) su ggests that the sei smi c ref l ect i ons rep resent l aye ri ng wi thi n the anorogeni c bas ement comp l ex . Fu rthe rmore , thi s l aye red sequence p robably rep resents a veneer of epi zonal rocks overly i ng an ol der Precamb ri an basement comp l ex . In summa ry , the basement geol ogy of the southe rn I l l i noi s Bas i n cons i sts of an anci ent ri ft compl ex devel oped at and nea r the basement su rface , whi ch may have deve l oped on a l aye red sequence of anorogen i c g rani tes and rhyol i tes , and whi ch, i n t u rn , may overl i e an ol der P recamb ri an bas ement compl ex .

Reg i onal Geol ogy of the Ill i noi s Bas i n

The I l l i noi s Bas i n i s a roughl y el l i pti cal sed i mentary bas i n of Pa l eozoi c age ( fi g . 1 1 ) . It cove rs the southern three-fou rths of I l l i noi s , southwestern I ndi ana , and part of western Kentucky . It i s bordered by broad a rches and domes on the north, eas t , and west ( fi g . 9 ) . The southern l i m it is defi ned by the tru ncated Pas col a Arch , whi ch i s bu ri ed beneath Cretaceous and Cenozoi c sedi mentary rocks of the Mi ss i ss i ppi Embayment .

The I l l i noi s Bas i n was d i v i ded i nto two uneq u al sub-bas i ns by post­Pennsyl van i an fau l t i ng al ong the Rou gh C reek Fau l t System . The b road

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.. . ')"'"

<D Post Mt .. Simon-Lamotte 0 40 mi 0 65 km

o Mt. Simon-Lamotte & older Sedimentary Rocks

• Precambrian Crystalline Rock

...... Rift Complex

Figure 1 0. Index map showing deep drillholes in the central midcontinent region, North America. (Lidiak, in preparation).

� Cretaceous-Quaternary-Tertiary [ffld Devonian-Silurian

l:'.:'.:'.:'.:'.I Pennsylvanian !Bil' Ordovician

[]ill Mississippian

Figure 1 1 . Bedrock geology of Illinois Basin and adjacent areas.

ml Cambrian

- Precambrian

28

Fai rf i e l d Bas i n , l i es north of the fau l t system p ri ma ri l y wi thi n I l l i noi s . The na rrow, deep Moorman Sync l i ne occu rs south of the fau l t system and coi nci des wi th the anci ent Rou gh Creek Graben .

The Reel foot and Rough C reek G rabens we re formed by ten s i onal movements near the end of Precamb ri an t ime . Both the northeast-t rend i ng Reel foot Ri ft and the east-t rendi ng Rou gh C reek G raben are bordered by normal fau l ts wi th throws of up to several thou sand meters . Thes e fau l ts a re wel l i l l ust rated on p ropri eta ry and non-prop ri et a ry sei smi c refl ect i on p rofi l es ( Howe and Thompson , 1984 ; Nel son and Lumm , 1984 ) . The st rat i g raphy i nterp reted on the north-south sei smi c l i ne ( fi g . 4) i s typ i cal of the Moorman Trou gh . As i ndi cated by several wel l -defi ned refl ectors , the strat i graphi c i nterva l s down to the base of the Knox Megag roup a re rather un i form i n thi ckness . D i sconti n­uous sei smi c ref l ectors on the northeastern part of the l i ne rep resent the Rough C reek Fau l t System . The i nterp retat i on of p re-Knox st rat i g raphy shows an asymmet ri c graben whose fl oo r i s ti l ted to the north and with a hi nge zone to the south. The sei smi c data suggest that the graben has about 7 k i l ometers ( 23 , 000 feet ) of sedi mentary fi l l rep resent i n g up to 3 k i l omet ers ( 1 0 ,000 feet ) of l aye red rocks beneath the I l l i no i s Bas i n succes s i on that has been dri l l ed to date . Thes e st rat a a re bel i eved to be l a rgely el ast i c sed i mentary rock s , but may i ncl ude l ayered vol can i c and/or i nt rus i ve rock s . They rep re­sent the act i ve graben-fi l l i ng stage ; fau l ts i n the grabens were act i ve whi l e these rocks we re bei ng depos i ted or emp l aced . Younger Phanerozoi c a l k a l i c and u l t ramaf i c i nt rus i ve rocks are al so p resent i n mi nor amou nts Withi n the ri ft comp l ex . These i nc l ude a l noi tes , l amp rophy res, k i mberl i tes , mi ca peri odi tes , and ca rbonat i tes . They apparent ly were emp l aced du ri ng Ordov i ci a n , Devon i an , and Permi an t i mes ( Zartman et a l . , 1967 ; B i kerman et a l . , 1982 ) .

The ol dest sedi ment a ry format i on out s i de the grabens i n the I l l i noi s Bas i n i s the upper Camb ri an Mt . S i mon Sandstone . The Mt . S i mon was depos i ted duri ng a major ma ri ne trans gres s i on and overl i es a Precamb ri an su rface wi th 300 to 400 ( 900 to 1200 feet ) rel i ef . Acti v i ty on the graben-boundi ng fau l ts d i ed out du ri ng Mt . S imon t i me , but the Hub area cont i nued to subs i de rapi d l y . The E au C l a i re/Bonnete rre Format i on , above the Mt . S i mon , i s a rel ati vel y thi n , shal l ow-water carbonate uni t outs i de of the grabens , but i nc l udes thi ck sha l es i n the Hub a rea . The overl y i ng Knox Megag roup ( uppermost Cambri an and l ower Ordovi ci an ) al so thi ckens ma rked ly i nto the grabens , but i s domi nantly a shal l ow mari ne depos i t throughout i ts extent .

The i nfl uence of the bu ri ed grabens gradual l y waned through mi dd l e Ordovici an t i me . The I l l i no i s Bas i n l acked a wel l -def i ned depocenter i n l ate Ordovi ci an and Si l u ri an t ime . By early Devon i an t i me the Hub area once aga i n became the s i te of rel at i vely rap i d subs i dence and thi ck sedi mentat i on . The bas i n that devel oped was fi l l ed wi th Lower Devon i an cherty ca rbon ates , M i ddl e Devoni an l i mestone , Upper Devon i an b l ack sha l e ( New Al bany ) , l ower Mi s s i s s i pp i an s i l tstone and s i l i ceou s l i mestone ( Bo rden and Ft . Payn e ) , and fi na l ly mi ddl e Mi s s i s s i pp i an ca rbonates ( U l l i n , Sa l em , St . Lou i s , and Ste . Genevi eve ) . Chesteri an ( l ate Mi s s i s s i pp i an ) sed i mentat i on took p l ace on a nearly l evel coastal p l ai n and she l f t i l ted gent ly towa rd the southwest . After a hi atus and devel opment of a bas i n-wi de uncon formi ty , Pennsyl van i an depos i ti on resumed under s i mi l ar condi ti ons . Southe rn c l osu re of the bas i n was effected some t i me afte r mi ddl e Pennsyl van i an t ime by up l i ft of the Pasco l a arch . The c rest of th i s arch, i n southeaste rnmost Mi ssou ri , was l ater eroded and bu ri ed under sedi ments of the Mi s s i ss i pp i Embayment .

29

St rat i g raphy and St ru ctu re of the Hub Si te

The strat i g raph i c succes s i on for t he Hub a rea is p resented in fi gu re 12 . Th i s succes s i on resembl es . that fo r the I l l i noi s Bas i n as a whol e , except for the p re-Mt . S i mon g raben-fi l l sequen ce and the over-t h i ckened uppe r Cambri an-l owe r Ordovi ci an strat a . Maj or fau l t zones and oth e r struct u ra l featu res of the Hub reg i on a re shown i n fi gu re 9 . These st ructu res a re l a rgely the p roduct of post-Pennsyl van i an react i vat i on of fau l t s dat i ng from the g raben-formi ng epi sode .

The Rou gh Creek Fau l t System , a focus of the I BUD p roj ect , fol l ows the northern boundary of the Rough C reek G raben and Moorman Syncl i ne . At Knox and h i gher l evel s the ma i n fau l t is a reve rse fau l t di pp i ng steeply to the south ( fi g . 13) . St rata north of the mai n fau l t a re nearly hor i zontal ; on the s outh they are sha rp ly a rched and broken by many fau l t s that appa rently jo i n the ma i n fau l t at depth . L i tt l e net vert i cal d i sp l acement exi sts across the fau l t zon e , but s l i ces of mu ch ol der rocks are fou nd al ong the ma i n fau l t . Some authors , such as Heyl ( 1972) , su g�ested the Rough C reek i s a wrench fau l t . Nel son and Lumm ( 1984) fou nd no evi dence fo r st ri k e- sl i p mot i on and p roposed two oppos i te ep i s odes of d i p-s l i p i n post-Pennsyl vani an t ime . The ea rl i e r movement was reve rs e , wi t h the southern bl ock upt h rown ; the l ater movement was normal , w i th the southern b l ock d ropped back down .

The Lusk C reek Fau l t Zone ( f i g . 9) i s i nterpreted to fol l ow the northwest s i de of the Reel foot G rabe n . It h as the same st ructu ral styl e and i nferred sequence of movement s as the Rough Creek , but the ma gni tude of di s p l a cement i s l ess ( Nel son , 1986) .

The Penny ri l e Fau l t Zone ( fi g . 9) app roxi mately coi nci des wi th the southern border of the Rou gh C reek Graben . Th i s zone , whi ch has been l i tt l e studi ed , appears to cons i st ma i n ly of h i gh-ang l e norma l fau l t s downth rown to the no rth . D i sp l a cement s , both near the su rface a nd at dept h , a re l ess than al ong the Rou gh Creek Fau l t System .

The Fl uors pa r Area Fau l t Compl ex ( f i g . 9) , w ith i n the Hub area , cons i sts of h i gh-angl e fau l ts , mai n ly norma l , that t rend northeast and carry mi nera l i zed vei ns . Hi ck s Dome , a 11crypto-expl os i ve 11 featu re , wit h i n the F l uorspar D i st ri ct is cha racteri zed by nume rous peri dot i te i nt ru s i ons and brecc i a p i pes . Arcu ate and radi a l fau l t s su rround the dome ( Hook , 1984 ; Trace , 1974 ; T race and Amos , 1984) .

The Wabas h Val l ey Fau l t System ( f i g . 9) , north of the Rou gh C reek a nd F l uorspar Area fau l t i ng , i s a zone of h i gh-an g l e normal fau l ts that b ranch upward . It overl i es the i n ferred Southern I ndi ana ri ft arm and pos s i bly rep resents react i vat i on of fau l ts associ ated wi th that ri ft ( Sexton et a l . , 1986) .

The Cottage Grove Fau l t System ( f i g . 9) t rends westward from the northwest corner of the Hub a c ross southern I l l i noi s . It is structu ral ly compl ex and i s i nterp reted as a ri ght-l ateral st ri ke- sl i p system ( Nel s on and Kraus se , 1981).

(I) ::> 0 a: w u. z 0 CXI a: <t 0

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Figure 1 2. Stratigraphic column of eastern midcontinent.

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N Rough Creek- s front Shawneetown

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d ie & Upper Ordovician - - -

:-;-..-,-���K�n�o�x�M�e�g�a:gr�o�u�p�:-:-:--:-:--:--:--:-:-'."""'."":�:-':-'C:-:--:::-::-����-�-.�·.�·.�· ·�· ��7}��-;-;-;-;-�-�-t3ooo

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-50 miles (80 ki lometers)

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Figure 1 3. Hypothetical cross section of the Rough Creek Graben of western Kentucky. The thickness of pre-Knox sedimentary strata and the configuration of the basement and basement faults are largely unknown but would be defined by the proposed seismic studies.

32

RESEARCH PLAN

I nt roduct i on

The p roposed s i t e def i n i t i on studi es that wi l l defi ne the Hub area and the I BUD s i te form the core of thi s p roposal . The research p l an i s subdi v i ded accordi ng to di sci p l i ne : magnet i cs , gravi ty , sei smi c refl ect i on and refract i on , sei smi c strat i g raphy and magnetotel l u ri c s . It shou l d not be ass umed , howeve r , that the i nvest i gat i ve teams are compa rtmental i zed by di sci pl i ne . The data of each d i sci p l i ne wi l l be acqui red i ndependent l y , acco rdi ng t o the most advanced p rocedu res ; the data and i nterp retat i on s wi l l be sha red among a l l teams so that fi nal i nterpretat i ons wi l l be const rai ned by al l col l ateral i n format i on . Thi s shari ng of res u l ts wi l l be achi eved both at the work i ng l evel by personnel cooperat i ng between the i n vesti gati ve t eams and at the formal l eve l , by meet i n gs organ i zed by the Stee ri ng Comm i ttee. P ri nci pal i n vest i gators , who wi l l serve as chai rman or co- chai rmen of the i nvest i gat i ve teams , are respon s i b l e for the bas i c i nd i v i dual resea rch p l ans d i s cussed bel ow.

The deep ( c rustal ) sei smi c refract i on and refl ect i on team wi l l be chai red by D r . L . W . B ra i l e , Pu rdue Un i ve rs i ty . The regi onal and detai l ed sei smi c refl ect i on i nvesti gat i ve team wi l l be chai red by Dr . J . L . Sexton , Southern I l l i noi s U n i vers i ty . The g rav i ty i nvest i gati ve team wi l l be chai red by D r . Paul C . Hei gol d , I l l i noi s State Geol ogi cal Su rvey . D r . Thomas Hi l den b rand of the U . S . Geol ogi cal Survey wi l l chai r the magnet i c data team . Dr. Pet er Vai l , Ri ce Uni vers i ty , wi l l cha i r the sei smi c strat i g raphy team . The magnetotel l u ri c stud i es wi l l be u nder the d i rect i on of D r. W . D . Stan l ey , U . S . Geol ogi cal Su rvey . The geol ogi c i nvest i gat i ve team wi l l be co-chai red by D r . E . G . L i d i ak ( basement geol ogy) o f the Un i ve rs i ty o f P i ttsbu rgh, a nd M r . W . J . Nel son ( Pal eozoi c geol ogy) of the I l l i noi s Stat e Geo l ogi cal Su rvey . Members of the i n vest i gat i ve teams a re i l l u st rated i n F i gu re 25 .

Geol ogi c Studi es

Pal eozoi c Geol ogy

Knowl edge of the Pa l eozoi c geol ogy of the Hu b s i te i s based on mo re than 140 yea rs of comp rehensi ve studi es by geol ogi sts from un i vers i t i es , state and U. S. geol ogi cal su rvey s , and pri vate compan i es . Si nce Dav i d Dal e Owen ' s p i oneeri ng su rveys of the 1840 ' s , many thousands of repo rts ha ve been publ i shed on geol ogy of the regi on . Among recent not eworthy efforts , the U . S . and Kentucky Geol ogi cal Su rveys mapped al l of Kentucky on 7 l/2 -mi nute geol ogi c quad rangl es du ri ng the l ast 20 yea rs . Baxt e r et al . ( 1963) , Baxter and Desborough ( 1965), and Baxt er et al . ( 1967) mapped the I l l i noi s porti on of the Fl uorspar Di stri ct . Nel son and Lumm ( 1986 a , b , and c) mapped the a rea to the north, i ncl udi ng the Shawneetown Fau l t Z one . Geol og ic mappi ng i s i n p rogress west of the Fl uorspa r D i st ri ct u nder joi nt au spi ces of the U . S . and I l l i noi s State Geol ogi cal Su rveys ' COGEOMAP P rog ram . Vi rtua l ly a l l of the Hub a rea has been mapped geol ogi cal ly on 7 1/2 -mi nute quadrangl es wi t h i n the l ast 20 years . Important reports i nc l ude Hook ( 1974) , T race ( 1974), and T race and

33

Amos ( 1 984) on the Fl uorspar D i stri ct ; Schwa l b ( 1982) on ove ra l l Pal eozoi c geol ogy of the reg i on ; Nel son and Lumm ( 1984) on s t ru ctu ral geol ogy of Southeastern I l l i noi s and vi ci n i ty ; and McKeown and Pak i ser ( 1982) and Gori and Hays ( 1984) on vari ous aspects of regi onal geol ogy and geophys i cs .

Ten borehol es have reached Mt . S imon o r o lder rocks withi n and adj acent to the Hub a rea ( fi g . 10) . Son i c and dens i ty l ogs whi ch a re requi red to model geophys i ca l data a re avai l abl e from fou r of thes e dri l l hol es . Logs and samp l es from these hol es , and f rom 2 , 767 sha ll ower ho l es wi thi n the Hub a rea , are on fi l e at the I l l i noi s , I nd i ana , and Kentucky Geol ogi ca l Su rveys ( Tabl e I ) .

Tabl e I Avai l abl e Sampl es from Hub Area at

Il l i noi s and Kentucky Geol ogi cal Su rveys

Depth I Cutti ng II Core I Chi p Total II Hol es Interval s I nterval s I nterval s Sampl ed

0/ 500 10 10 500/ 1000 55 11 19 85 1000/2000 123 14 37 174 2000/3000 1 1 72 1 223 1396 3000/4000 962 88 1050 4000/5000 32 4 36 5000/Deeper 14 1 15

2369 26 372 2767

Wi thi n the l ast yea r, mo re than 1 , 000 l i ne-mi l es of p rop ri eta ry sei smi c refl ect i on p rof i l es have been exami ned by staff membe rs of the I l l i noi s State Geol ogi cal Su rvey and the IBUD Workshop . Al though these p rof i l es a re l i mi ted i n thei r appl i cabi l i ty to s i t i n g of the I BUD , they do p rovi de i ns i ght i nto the geomet ry of the g raben -bou ndi ng fau l t s . Al so v i ewed we re l i nes p rovi di ng extens i ve coverage of the I l l i noi s Bas i n north and west of the p ropos ed ! BUD s i t e . Thi s l a rge body of Pal eozoi c geol ogi cal and geophysi cal data wi l l be ut i l i zed i n st rat i g raphi c and st ructu ral i nterp retat i on of geophys i ca l dat a to be acqu i red duri ng I BUD s i te defi n i t i on effo rt s .

Basement Geol ogy

The 24 deep wel l s dri l l ed to basement or p re-Mt . S imon Sandstone i n the I l l i noi s Bas i n ( fi g . 10) and adj acent a rea ( Tabl e I I) p rovi de a useful base fo r study i ng the P recambri an geol ogy of the regi on . P rel im i nary studi es have been condu cted on the sampl es of these dri l l ed hol es , but add i t i onal pet ro­l og i c i nvesti gat tons and phy s i ca l p roperty measu rements a re req u i red fo r s i t e defi n i t i on . The emphas i s o f P recamb ri an studi es wi l l be on detai l ed study and eva l uat i on of geol ogi c and geophys i cal l ogs , l i thol og i c and pet rographi c study of basement samp l es , the i mmedi ately overl yi ng sedi ment a ry rock s , and Phanerozoi c ul t ramafi c i gneous rock s . The p ropos ed study wi l l a l so i ncl ude measu rement of the pri nci pal phy s i cal p ropert i es ( dens i ty , magnet i c suscept i bi l i ty , and nat u ra l remanent magnet i zat i on) o f these rocks to ai d i n the i nterp retati on of g rav ity and magnet i c anoma l i es . Physi cal p roperty mea s u rements wi l l be i nteg rated wi th the geophys i cal dat a to obtai n a comp rehensi ve s i te defi n i t i on eval uat i on .

34

Tabl e I I . Li st of Deep Dri l l hol es to Base1111ent or Pre-Mt . Si mon Sandstone i n the Il l i noi s Bas i n and Adjacent Areas

1 1 1 i noi s

1 . Ma ryl and #S-1 Ki rche i s , 2 . Mi s s i ss i pp i #S-2 Kl ei n , 3 . Mi s s i ss i ppi #S-5 Bae r , 4 . Humbl e # 1 Wehe r-Ho rn , 5 . M i s s i s s i ppi #A- 15 Theobal d , 6 . Brekon #1 Hemmi nghaus , 7 . Texaco #1 Johnson , 8 . Un i on #1 Ci sne ,

9 . Beeson #1 Porter , 1 0 . Brehm #1 Bochant i n , 1 1 . Texaco #1 Cuppy , 12. Texas Paci fi c # 1 Fa rl ey , 1 3 . Texas Pac i fi c #1 St rei ch ,

Indi ana

14. Fa rm Bu reau #1 Brown

Kentucky

1 5 . Exxon #1 Be l l ,

1 6 . Texas #1 Shai n ,

Mi ssouri

1 7 . Ma r r #1 Ba rnet t , 1 8 . St rake # 1 Russel l ,

Tennessee

1 9 . Be nz #1 Me rritt , 20. Hende rson #1 Ma rkham , 2 1 . Bi g Ch i ef #1 Tayl o r . 2 2 . Gul f # 1 Spi n ks , 23. Du pont #2 Fee ,

Arkansas

24. Dow #1 Wi l s on ,

I nt roduct i on

Mad i son Cou nty . Mad i son Cou nty . Mad i son County . Fayette Cou nty . Mon roe County . Cl i nton Cou nty . Mari on Cou nty . Wayne Cou nty .

Perry County . Washi ngton Cou nty . Ham i l ton County . John son Cou nty . Pope County .

Lawrence County .

Webster Cou nty .

Grayson County .

Stodda rd County . Pemi scot County .

Lake Cou nty . Lake County . Gi bson Cou nty . Hen ry County . Hu111phreys Cou nty .

Bott<>PI Hol e Rock Types

Mt . S i mon on Grani te Mt . Si mon on Gran ite Eau C l a i re on Gran i te Mt . Si mon on Rhyol i te Eau Cl a i re on Gran i te Eau Cl a i re on Rhyol i te Mt . S i mon on Grani te Mt . Si mon on Rhyol i te or

Mi crogran i te F rancon i a on Rhyol i te Eau Cl a i re on Gran i te Eau C l a i re on Gran i te Mt . S i mon on p re-Mt . Si mon Mt . S i mon on p re-Mt . Si mon ( ? )

Arkose on Basal t

Arkose on Ba sal t of uncert a i n age

Rome Format i on

Lamotte Sandstone Lamotte ( ? ) Sandstone

Lamotte or p re-Lamotte Sandstone Lamotte or p re-Lamotte Sandstone Lamott e or Rhyol i te Lamotte ( ? ) Sandstone Lamotte on Arkose

Mi s s i s s i ppi Cou nty . Arkose on Gran ite Gne i s s

SE ISMIC PROGRAM

Se i sm i c refracti on/wi de- ang l e refl ect i on and refl ect i on p rofi l i ng stud i es a re p roposed for s i te defi n i t i on and c rustal cha racteri zat i on of the I BUD . The p r i nc i pal object i ves of the sei smi c stud i es a re to ( 1 ) defi ne t he

35

stru ctu re of the crust to at l east i ntermedi ate depths ( ap p roxi mately 20 k i l omete rs or 12 mi l es) and perhaps to the upper mantl e i n the Hub a rea ; and ( 2) uti l i ze sei smi c refl ect i on p rofi l i ng to p rovi de a detai l ed conf i gu rat i on of maj or sed i menta ry and basement un i ts as wel l as fau l ts near the Hub s i te for the pu rpose of opt i mi z i n g the dri l l hol e s i t e sel ect i on .

A knowl edge of deep ea rth st ructu re i s a k ey el ement i n any effo rt to s i t e a deep dri l l hol e and i nterp ret resu l ts from such a hol e i n a regi onal context . As the pet rol eum i ndust ry has l ong recogni zed , sei smi c s tudi es a re the maj or sou rce of such i nformat i on . The p roposed Hub s i t e i s wi thi n the deepest p a rt of the I l l i noi s Bas i n and i s p l anned to penet rate a thi ck sect i on of sedi menta � rocks that extst beneath the bas al ea rly Pal eozoi c ( Mt . Si mon) sed i ment a ry l ayer . These p re-Mt . S i mon rocks a re re l ated to a l ate� Precambri a n ri ft event that su bsequent ly cont rol l ed the evol ut i on of the I l l i noi s Bas i n ( B rai l e et al . , 1 986) . Because of the rel at i onshi p of the I l l i noi s Bas i n to unde rlyi ng ri ft and crustal anomal i es , i t i s ext remely i mportant to p l ace the !BUD s i te and the I l l i noi s Bas i n in a crustal st ructu re and tecton i c framework that i ncl udes the ent i re c rust . The hi gher resol u t i on sei sm i c studi es p rovi ded by regi onal and detai l ed refl ect i on p rofi l i ng wi l l be used for mapp i ng sedi menta ry sequences , the bas ement su rface , and maj o r fau l ts to upper-c rustal depths 10 k i l ometers ( 6 mi l es) i n the I l l i noi s Bas i n a rea . Thus , a va ri ety of sei sm i c stud i es i s app rop ri ate to i nvesti gate the natu re of the Hub s i te on both a l ocal and reg i onal scal e a nd resol ve featu res at both shal l ow and deep cru stal depths .

Sei smi c stud i es i n and around the Hub s i te cons i st of fou r bas i c el ements conducted i n two phas es of res ea rch . Du ri ng the fi rst phase, deep c rustal ref ract i on and wi de-angl e refl ect i on profi l es ( NE-SW and E-W) wi l l be reco rded a l ong two i nte rsect i ng 200 k i l omet er ( 1 25 mi l e) l i nes c ross i ng the Hub s i te . A 50 ki l omet er ( 30 mi l e) deep refl ect i on profi l e , des i gned to record refl ect i on data from at l east as deep as Mohorovi ci c D i scont i nu i ty , wi l l be run al ong the cent ra l port i on of the NE-SW deep c rustal ref racti on and wi de­angl e refl ect i on p rofi l e . App rox imately 250 mi l es of reg i onal refl ect i on p rofi l es wi l l al s o be ru n i n and around the Hub s i t e . Data assoc i ated with these p rofi l es wi l l be p rocessed to at l east 8 seconds . Based on the resu l ts of thi s fi rst phase of sei smi c studi es , an app roxi mately 15 by 15 k i l ometer ( 9 by 9 mi l e) a rea wi l l be sel ected for fu rther detai l ed refl ect i on p rofi l i ng . Du ri ng the second phase of the refl ect i on stud i es , 50 k i l ometers ( 30 mi l es) of det a i l ed refl ect i on p rofi l i ng wi l l be run for the pu rpose of defi n i ng the exact l ocat i on of the dri l l s i te and del i neat i ng the subsu rface con fi gu rat i on of maj or sedi ment a ry u n i t s , fau l t s , and the basement su rface i n the a rea i mmed i ately adj acent to the dri l l hol e . These det a i l ed refl ect i on dat a , al s o reco rded t o 8 seconds , wi l l not on ly p rovi de the c r i t i cal i n format i on neces s a ry for s i te sel ect i on , but wi l l al so be useful after the comp l et i on of the d ri l l hol e to extend the geol ogi c i nformat i on obtai ned from the hol e away from the dri l l s i te .

The dat a acqu i s i t i on , proce s s i ng and i nterp ret at i on of the sei smi c studi es of the Hub a rea wi l l be a team effort . The team con s i sts of D rs . L . W . Brai l e ( P u rdue Uni ve rs i ty) , J . L . Sexton ( Southern I l l i noi s Uni vers i ty ) , G . R . Kel l er ( Un i vers i ty of Texas at E l Paso) , a nd Peter R . Vai l ( R i ce Uni ve rs i ty) . The fou r i n vesti gators wi l l be i nvol ved on the ent i re s ei smi c res ea rch p rog ram . D r . Sexton wi l l ha ve p rimary respons i bi l i ty for the acqu i s i t i on , p rocess i ng , and i nt rep retat i on of the regi onal ref l ect i on and deta i l ed refl ect i on studi es . D r . Brai l e wi l l have the p ri ma ry res pons i b i l i ty for the deep ( c rustal ) ref ract i on/wide-angl e refl ect i on and deep sei smi c refl ect i on p rofi l i ng expe ri ment s . An i nteg rated i nterp ret at i on of al l of the

36

sei smi c data wi l l be performed by the three i nvest i gators . Dr . Vai l wi l l h ave p ri ma ry respons i bi l i ty for sei smi c st rat i g raphy . Th i s research team has exten s i ve experi ence i n crustal sei smi c studi es and refl ect i on proces s i ng and i nte rp ret at i on ; each of the i nvest i gators , wi th the except i on of D r . Vai l , have been i nvol ved i n on-goi ng sei smo-tectoni c studi es of the New Mad r i d R i ft Compl ex and I l l i noi s Bas i n a reas for the past ten yea rs .

Reg i onal St ru ctu re and Tecton i cs of the I l l i noi s Bas i n

The st ructu re a nd geol og i c evol uti on of the I l l i no i s Bas i n i s i nt i mately rel ated to the tectoni c devel opment of the upper Mi s s i s s i pp i Embayment and the underlyi ng New Mad r id R i ft Comp l ex ( fi g . 14 and 1 5 ) . The tecton i c evo l uti on of th i s featu re has recent ly been revi ewed by Brai l e et al . ( 1986 ) . I n the past decade, many geol ogi cal a nd geophysi cal stud i es of t he New Mad ri d a rea have been performed i n orde r to better u nde rstand the ea rthquake haza rd i n the a rea . I nteg rat i on and i nt e rp ret at i on of these data have l ed to i mp roved u nde rstandi ng of the nat u re and geol ogi c h i story of the subsu rface st ruct u re and i ts rel ati on to sei smi ci ty of the a rea .

E rvi n and McG i nni s ( 1975 } used exi s t i ng geol og i cal and geophy s i cal data to i nterp ret the evol uti on of the M i ss i ss i ppi Embayment as l ate P recamb ri an or ea rly Cambri an ri ft that they ca l l ed Reel foot Ri ft . The Reel foot R i ft hypo­thes i s , al ong wi th the h i stori cal earthquake act i v i ty ( Nuttl i , 197 3 , 1979 , 1982 ) and the recent mon i tori ng of mi c roea rthquake acti vi ty ( Staunder et al . , 1977 , 1982 ) , p rovi ded fu rther research a i med at u nderstandi ng the deta i l s of the ri ft model and i t s rel at i on to the sei smi c haza rd . H i l denbrand et al . ( 1977 , 1982) and Kane et a l . ( 1981 ) uti l i zed g ravi ty and magnet i c data t o better del i neate the bou nda ri es of the bu ri ed ri ft and t o i nfe r a th i ck sec­ti on of sed i ment a ry rocks fi l l i ng t he g raben associ ated wi th t he r i ft . The New Mad ri d Sei smi c Zone is l ocated nea r the cente r of the ri ft . Brai l e et al . ( 1982a and b } uti l i zed l ocal g ravi ty and magnet i c maps to su ggest exten s i ons of Reel foot Ri ft to the northwest and to the northeast ( fi g . 1 4 ) . Sode rberg and Kel l er ( 1981 ) descri bed t he subsu rface st ruct u re of t he Rough C reek G raben ( f i g . 2 ) i n western Kentucky adj acent to the northern end of Reel foot Ri ft . An i nteg rated i nterpretat i on of these studi es ( B rai l e et a l . , 1982b} i nd i cates that a fai l ed ri ft system , termed the 1 1New Mad ri d R i ft Comp l ex , 11 exi sts be­neath t he upper Mi s s i s s i ppi Embayment ( fi g . 1 5 ) . Regi onal g ravi ty data of Cordel l ( 1977 ) show a c lear co rre l at i on wit h the ri ft compl ex as to ea rthquake and mi croea rthquake acti v i ty ( f i g s . 14 and 16 ) . E a rt hquake focal mechani sm stud i es ( Herrmann and Canas , 1978 ) of the New mad ri d Sei smi c Zone support ri ght-l ate ral stri k e-s l i p fau l t i ng a l ong the zone of mi croearthquake act i v i ty , wh i ch trends northeasterly and i s l ocated southwest of the town of New Mad ri d , M i s sou ri ( fi g . 14 ) .

Of the seve ral model s proposed to expl a i n i nt rap l ate earthquake act i v i ty · i n t he North Ameri can mi dcont i nent , two have emerged ( H i nze et al . , 1980 , 1984) , that appea r to be mo re successfu l i n combi n i n g exi sti ng geol ogi ca l and geophy s i cal data to expl a i n the sei smi c acti v i ty : the 11 zone of weaknes s 11 model ( Sbar and Sykes , 1973 ; Sykes , 1978) , and the 11 l oca l basement i nhomo­gene i ty 11 model ( Long , 197 6 ; Kan e , 1977 ; McKeown , 1978 } .

The 11zone of weak nes s 11 model states that contempora ry eart hquake act i v i ty resu l ts from react i vat i on of anci ent zones of weak ness wi thi n the c rystal l i ne crust . React i vat i on i s assumed to be cau sed by app l i cat i on of the contempora ry regi onal st ress f i e l d to the weak zones of fau l ts o ri ented rel ati ve to the st ress flel d i n such a way that the stress cau ses mot i on on these anci ent fau l ts or zones of weakness . Use of t h i s model to exp l a i n the

39°

38°

37°

36°

I

NE W MADRID ! ILLINOIS o d RIFT C OMPLEX) 0

0 0 0 INDIANAPO.i�S

:1 OHIO o. 0 IND I ANA 0 - .... t' , . . . b.<) . '.\ 0 0

.(: : . : : : : : : : : S . I N D IA N A, , . · · · · · · · · · · · 1.....- A R M , (k\... ';, 0 + l. 11>,\ ;-< 0 , __

�-" ... (" 0 J �� �

'°"/��o

39°

38°

37°

35•

Figure 14. Index map of New Madrid Rift Complex (shaded region) as defined by Braile et al. (1 982) and proposed IBUD location. Small circles are epicenters of earthquakes that occurred from 181 1 to 1 975. The heavy contour lines show the relative positive regional Bouguer gravity anomaly (Cordell, 1 977) associated with high density rocks that lie at intermediate depths within the crust and extend northeastward along the upper Mississippi Embayment.

N

I MICHIGAN RI VER S YSTEM

(PRE-GLA CIA L)

�-A;.;,.;.;.;.;.J _ _,,..�--K_E_N_T_U_C_K_Y--J � ·�,:.;.,o<-;-� REGIONAL

COMPRESSIVE STRESS

Figure 1 5. Schematic block diagram il lustrating the structure of the crystalline crust and Phanerozoic sedimentary basins beneath the New Madrid Rift Complex in the upper Mississippi Embayment and Il linois Basin areas (from Braile et al., 1 986). The locations of the Reelfoot and Il linois Basins are shown by 2- and 4-km sedimentary layer thickness contours.

39°

37°

35°

COR REL AT ION OF R I F T COM P L E X A N D S E I S M I C I T Y

I L L I N O I S I N D I ANA

+

M I S SO U R I

92° 90° 88°

- 8 - C O N T O U R S O F N U M BE R O F

EARTHQUAKES ( 1800 - 1972, M M � m ) P E R 104 km 2 A R E A ( AF T E R H A D L E Y

AN D DEVI N E , 1974 )

86°

- - I N FERRED BOUN DARY OF R I F T COMPLE X

Scale I I II I I 0 100 200 km

Figure 16. Contour map of earthquake seismicity (in number of earth­quakes with Modified Mercalli Intensity greater than or equal to I l l per 1 04 kilometer square area from 1 890 to 1 972) and outline of New Madrid Rift Complex. The correlation of the rift complex with historic seismicity suggests a causative relationship between the buried rift structures and earthquake activity.

40

New Mad ri d zone of sei smi ci ty has been suggested hy Zoback and Zo back ( 1 981) , and by B rai l e et al . ( 1 982b and c ) .

The " l ocal bas ement i nhomogeneity" model states that sorne sma l l zones of ea rthquake act i v i ty a re associ ated wi th l ocal i nhomogenei t i es in the c rust . Gravi ty and magnet i c anoma l i es a re associ ated wi th the c ru stal i nhornogenei t i es ( Hi nze et al . , 1984) . Thi s model may represent the mecha n i srn for a smal l percentage of i nt rapl ace earthquakes that appear not to be rel ated to maj or buri erl st ructu res in the North Ame ri can m i,rlcont i nent .

These model s , when f i tted i nto a pl ate tecton i c framewo rk , can be userl to expl a i n sei srni c i ty of the New Mad rid Ri ft Compl ex . Brai l e et al . , ( 1 986) revi ewed tecton i c evol ut i on of the New Madri d Ri ft Comp l ex ; i t s rel at i on to craton i c tecton i cs , pl ate marg i n i nte ract i ons , and effects on the geol ogi c hi story of th i s port i on of the North Ame r i can c raton ; and i t s rel at i on to sei smi c i ty of the area . The New Mad r irl R i ft Compl ex , fo rmed by pl ate tectoni c i nte ract i ons about 600 mi l l i on years ago, has i nfl uenced the geol ogi c act i v i ty of the mi dcont i nent i n response to pl ate i nteact i ons at the marg i ns of the No rth Ame ri can pl ate. Th rough peri ods of upl i ft and subs i dence , sed i mentat i on , and d rai nage of maj or ri ver systems , thi s fai l ed ri ft compl ex has cont rol l ed , and i n fl uenced l ocal i zat i on of ore depos i t s . Al so the pl ate mot i ons a re p resently p roduc i ng the comp res s i ve st res ses , assurned to be react i vat i ng the faul ts or zones of weakness i n the New Mad rid Se i smi c Zone , thus caus i ng contempo rary ea rthquake and mi c roea rthquake act i v i ty .

Previ ous Se i smi c St ud i es o f the Upper Mi s s i s s i pp i Emhayrnent and I l l i no i s Ba s i n

The deep st ruct u re of the Mi ss i ss i ppi Embayment a rea has been the pr ime ta rget of sei smi c stud i es of deep c rustal st ructure because of the p resent ea rthquake act i v i ty . The early refract i on study of Mccamy and Meyer ( 1966) i ndi cated an anomal ou s , h i gh-vel oci ty ( Vp = 7 . 4 km/sec) l aye r i n the l owe r crust . The p resence of thi s l ayer has heen confi rmed by P-wave spect ral data ( Ku ri ta , 1973 ) , t ravel -time data from l ocal ea rthquakes ( Mi tchel l and Ha shirn , 1977), and the anal ys i s of Rayl e i gh wave d i spers i on data ( Aust i n and Kel l e r , 1982) . The recent and rel ati vely ext en s i ve ref racti on st udy of Mooney et a l . ( 1 983) and Gi nzburg et al . ( 1 983) mapped the extent of the anomal ous l ayer ( f i g . 17) i nto southwestern Kentucky .

Data on the structure of the upper port i on of c rust can be readi l y obta i ned us i ng the sei sm i c refl ect i on method . St ud i es of the New Mad r i d Sei smi c Zo ne have aga i n been the maj or sou rce o f publ i cly avai l abl e refl ect i�n dat a . I n the Reel foot Ri ft a rea , non-p ropri etary , sei sm i c refl ect i on stud i es i ncl ude two Vi brosei s su rveys condu cted by the U . S . Geol ogi cal Su rvey ( Zoback et al . , 1980 ; Hami l ton and Zoback , 1982) , a hi gh resol ut i on su rvey on the Mi s s i ss i pp i R i ver a l s o done by the USGS , and two hi gh-resol ut i on l and su rveys

.J .. 30 " ::11 ,,. 20 ...

� 10 a: " a: 0 ... ::> '5 -10 0

M I SS I S S I P PI E M BAYMENT

C R O S S G R AV I T Y MODEL

( THROUG H SPs 2 a 9 ) -- OBSERVED - - - - CALCULATED 30

20

IO 0

-10

= -20-+------..�----.,...------'T------.-------+-- - - - - -

-20

...J

r 20 ,_ a. w 30 0

40

� 30 :i: ,: 20 ,_ � 10 a: C> ffi 0 � C> 5 -10 ID

o 100 200 300 SP2 SP5

I' = 2 . 75

2 .8

100 200 300

D I S T A N C E , K M

400

S P 9

400

M I S S I S S I P P I E M BAYMENT A XIAL GRAVITY MODEL ( T HROUGH SP 1 , 3 , 5 , 6 , and 7 )

, --- - - - - - ------... J\ � '"'==

- GBSE "I V E C - - - - CALC1..;._ t..T E. :J

500

S S E 0

10

20

30

40

50

500

30

20

10

0

-10

- 20-+-----�------.--------.--------.-----+ -20 0 100 200 300 400 500

SP6 SP5 SP3 SP l 2.2 t

2 .55 f' = 2.75

2.8

3 . 25.

A XIAL PROF I L E � IBUD -1- i ·O

2 75 'C 2 7:--=1 10

20

30

40

+------...------------�----�-----� 50 200 3('0 400 50C

D I S T A N C E , K M

Figure 1 7. Upper Mississippi Embayment crustal models across the Reelfoot Rift (upper diagram) and along the axis of the Reelfoot Rift (lower diagram). The crustal models were derived by travel-time and synthetic seismogram modeling of seismic refraction data and gravity modeling by Mooney et al. (1 983) and Ginzburg et al. (1 983) . The thickened high density lower crustal material (shaded in the diagrams) appears to be a characteristic feature of the crust beneath the New Madrid Rift Complex, and according to the gravity modeling, it appears to extend northeasterly to the proposed IBUD site.

42

( Sext on et a l . , 1982 ; Sexton a nd Jones , 1981 ; Jones and Sexton , 1982 ; Jones , 1982) .

In the Wabash Ri ve r Val l ey of southwestern I nd i ana and southeastern I l l i n oi s , a Vi b rosei s sei smi c refl ecti on p rofi l i ng exper iment was conducted ( Sext on et a l . , 1986) nea r the ma rgi n of the Southern I nd i ana Arm of t he r i ft compl ex ( f i g . 18) . Thi s su rvey has provi ded c l ea r rl i rect ev i dence for l ate Precamb ri an to early Pal eozo i c faul t i n g associ ated with the ri ft comp l ex . An exampl e of these data from Sexton et al . ( 1986) for port i ons of two se i smi c refl ect i on sect i ons centered onthe Wabash Ri ve r at Grayv i l l e , I l l i no i s , i s shown i n fi gures 19 and 20 . The sei smi c secti ons show good refl ect i ons from · Pal eozo i c strat i graphi c u n i t s and al l ow i denti f i cat i on of the sma l l offset to ( 10 to 50 meters ; 3 to 1 7 feet) Wabash Ri ver Val l ey faul ts . In add i t i on , the reco rd sect i ons p rovi de evi dence fo r a thick sect i on of p re-Mt . Si mon l aye rerl rocks exi st i ng wi thi n a fau l t -bounded graben beneath the I l l i no i s Bas i n . A schemat i c c ross sect i on based on the sei smi c refl ect i on data of Sexton et al . ( 1986) as wel l as grav i ty and magnet i c i nterp retat i ons ac ross the southern Incli ana a rm of the New Mad ri d Ri ft Comp l ex , i s shown i n fi gu re 2 1 . Two stages of normal fau l t act i v i ty a re i nrl i cated by these data . Maj or g raben-bound i ng fau l t s fo rmerl i n l ate Precamb ri na to ea rly Cambri a n t i me and the g rabens were fi l l ed wi th pre-Mt . S imon l aye red rocks that a re overl a i n by a general l y conf ormab 1 e sequence of Pa 1 eozoi c sed i mentary rocks , the uppe r bounda ry of whi ch is a post -Pennsyl vani an unconfo rmi ty . The rel at i vely mi nor fau l t i ng of the Wabash Val l ey Fa ul t System occu rred l ater and was caused by react i vat i on of the ol der faul ts .

Object i ves of Crustal Se i smi c St udi es Nea r the Hu b Area

The exi st i ng sei sm i c data i n the regi ons surroundi ng the Hub a rea can be put to good use , but a maj or s ei smi c effort i s cl ea rly req u i red i n the v i ci n i ty of the p roposed d ri l l hol e . Al though it i s not known how extens i vely ri fti ng has al tered the c rust i n the d ri l l hol e a rea , the extent of crustal modi fi cat i on pl ays an i mportant rol e in understand i ng such d i verse phenomena as metal l ogeny and bas i n formati on . The p ropos ed d r i l l hol e s i tes a re c l early i n a st ructu ral ly compl ex a rea . On a l a rge scal e , the rel at i ons between the Reel foot R i ft , Rough Creek Graben , and Southe rn I ndi ana Arm a re a maj o r qtiesti on . On a smal l er scal e , the i nte rsect i ons among the Rough C ree k , Cottage Grove-Shawneet own , and Wabash Val 1 ey fau l t zones pose i mportant quest i ons . Sed i ment a ry rocks may exceed 7 k i l ometers (4 mi l es) total thi ckness i n the Rough Creek Graben ( f i g . 4 Sodhe rg and Kel l e r , 1981) ; ext ent of these very thi ck serl i ments i n another i mportant quest i on .

A fu l l y i ntegrated , two- phase sei smi c study i s p roposed t o determi n e the deep struct u re i n the Hub a rea . Thi s st udy wi l l be a maj or component of the s i te sel ect i on proces s . The f i rst phase of the st udy wi l l be regi onal i n scope and wou l d have both refract i on (wi de angl es of i nc i denc�) a nd refl ect i on ( nea r ve rt i cal i nc i dence) components . The i nteg rated nat u re of thi s study wi l l be both cost effect i ve and sci enti f i cal ly i nnovat i ve . It wi l l focus on an a rea of 100 by 100 k i l ometers ( 6 2 by 62 mi l es) . A maj o r con s i derat i on i n the l ayout of thi s fi rst phase of the p roj ect i s the des i rabi l i ty of tyi ng to the stud i es of Sexton et a l . ( 1986) and Mooney et al . ( 1 983) .

The data from the fi rst phase Of the study wou l d be used to redu ce the a rea of i nvest i gat i on to a 1 5 by 1 5 k i l omet er ( 9 by 9 mi l e) a rea . Phase I I of the sei smi c study wi l l be a i med at detai l ed s i te sel ect i on and wi l l con s i st of

88 301 + 38°30'

I DEEP WELL

WA YNE COUNTY T. D. 354 Im

(BELOW SEA LEVEL)

+38° 1 5'

LINE l ­

88° 1 5' +

HAMIL TON COUNTY LINE 200� 400/ 600 800 +. · � w ::::X'PART I '· + 3tj/ \ PART 2 TEXACO ND. 1 E. CUPPY

DEEP WELL ELEV 120m \ �

: T. D. 3859m 1"" (BELOW SEA LEVEL} " o � i �

+37°45'

� � 0 • (.} "-f �f �

88° +

0 5 Miles

0 1 0 Km

:

Figure 1 8. Index map of the Wabash Valley Fault region of southeastern Illinois and southwestern Indiana showing the locations of the Wabash Valley reflection profiles of Sexton et al. (1 986).

Cf)

WEST END-LINE 3-NEW HARMONY LINE RIBEYRE ISLAND FAULT

1 1 0

1 . 5

0 2 3 km

0 2 m i les

Figure 1 9. Example of seismic reflection data for the Wabash Valley reflection survey (Sexton et al. , 1 986). These data indicate a thick section of pre-Mt. Simon sedimentary rocks exists within a faulted basin beneath the Wabash Valley.

U)

.., � ;::

0

0.5

1 .5

2

2.5

w EAST END-LINE 2 -GRAYV I L L E L I N E WEST E N D - L I NE 3-NEW HARMONY L I N E E

GRAYVILLE, ILLINOIS NEW HARMONY FAULT

0 2 .3 km 0 2 molu

0 "') � �

0.5

2.5

__..- HERALD-PHILLIPSTOWN

,,,,,.- FAULT

I� 0.5

- - - - - - - - - -1

2.5 0 2 3 km 0 2 milh

GRAYVILLE GRABEN -------------i

Figure 20. Composite seismic reflection record section of the east end of the Grayville line and west end of the New Harmony line (Figure 6) of the Wabash Valley seismic data (Sexton et al . , 1 986). These reflection data define the Grayville Graben beneath the Illinois Basin sedimentary sequence.

0

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FAULTS

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1 000 900 800

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,.... I-c ._,

>-..J o <C ..J � w o LL: Z <( ....J (.) <( _ I- I-O W 1- Z (.!) <( �

Figure 21 . Northwest-to-southeast schematic cross section of the upper crust along line C-C' (Figure 6) across the Wabash Valley Fault System in southeastern Illinois and southwest­ern Indiana (from Sexton et al. , 1 986).

47

det a i l ed sei smi c refl ect i on p rofi l i ng . Maj or goal s of thi s phase i n c l ude : the detai l ed determi nat i on of fau l t geomet ri es , detect i on of i nt rus i ve masses , determi n i ng the su i tabi l i ty of the s i te from the standpo i nt of the l i k el i hood of extend i ng stud i es i n the d r i l l hol e l ateral l y , del i neat i on of basement st ructure , detect i on of Pre-Knox sediment s , and establ i shi ng age rel at i ons through the study of fau l t geomet ri es .

Resea rch Pl an for I BUD Cru stal Se i smi c St udi es

C rustal sei smi c studi es of the Huh a rea a re p roposed to p rov i de a cha racteri zat i on of the c rust i n the I l i noi s Ba s i n , New Mad ri d Ri ft Comp l ex reg i on , and to refi ne the s i te sel ect i on of the I BUD d ri l l hol e . Because the i mp o rtant targets fo r the d ri l l i ng and the s e i smi c wo rk a re at depths of 5 to 10 k i l ometers ( 3 to 6 mi l es ) or even g reate r , s pec i a l des i gn featu res have been consi dered i n p repari ng the c rustal sei smi c experi ment p l a n . The nat u re of the upper c rust and the extent of the l ower c rustal anomal y found to the sou th nea r the Reel foot Ri ft a rea ( e . g . Mooney et a l . , 1983) . Add i t i onal ly , the basement confi gurat i on and st ructu ral rel at i onshi ps of fau l ts wi thi n the basement and the Pal eozo i c sed i mentary sect i on a re a l so ta rget s of the sei smi c wo rk .

A two phase c rustal sei smi c exp l orat i on p rog ram i s proposed . Phase I con s i sts of two types of sei smi c studi es a i med p riMari l y at the deepe r st ruct u re and regi onal refl ect i on p rofi l i ng t o p rovi de detai l ed i nformat i on on near-su rface featu res , pa rt i cul ar ly the Rough C reek G raben , the fau l t confi g­u rat i on i n the a rea , and the basement su rface . Pha se I I con s i sts of a set of det ai l ed sei smi c refl ecti on profi l es u s i ng conventi onal Vi brosei s sei smi c. refl ect i on techn i ques i n an approxi mately 15 k i l ometer by 15 k i l ometer ( 9 by 9 mi l e ) a rea surround i ng the p roposed dri l l s i te . Locat i ons for the p roposed se i smi c p rofi l es for both. Phase I and Pha se I I stud i es a re shown i n f i gu res 22 and 23 . A bri ef descr i pt i on of each of the p rofi l es i s g i ven i n tabl e 1 and a schemat i c d i agram i l l u st rat i ng the depl oyment p l ans fo r the fou r types of sei sm i c stud i es ( refract i on/wi de-ang l e refl ect i on , deep refl ect i on p rofi l i ng , regi onal refl ect i on p rofi l i ng and detai l ed refl ect i on p rofi l i ng ) cont a i ned i n the resea rch pl an i s g i ven i n fi gure 24 . Phase I se i smi c refract i on and refl ect i on stud i es wi l l p rovi de important data bea ri ng on the l ocat i on of the IBUD d ri l l s i t e . The det a i l ed refl ect i on profi l es wi l l be l ocated over the sel ected s i te and wi l l refi ne the s i te sel ect i on so that the opti mum l ocat i on of the d ri l l hol e can be found . These data add i t i onal ly wi l l a id i n extend i ng the geol ogi cal and geophys i cal data hase p rovi ded by the d ri l l hol e away from the hol e and g i ve the confi gurat i on of i mportant fau l ts , sed imentary u n i ts , and ba sement struct u re i n an a rea surrou ndi ng the d ri l l hol e .

The proposed Phase I c rustal sei smi c stud i es i nc l ude refract i on/wi de­angl e refl ect i on p rof i l es , deep refl ect i on p rofi l es and regi onal refl ect i on profi l es . The Phase I stud i es wi l l he performed d u ri ng the fi rst year of the p ropsed two and one-ha l f yea r resea rch pl an and the resu l ts of Phase I p rocess i ng , model i ng , and i nterpretat i on wi l l p rovi de the neces s a ry data for se l ect i ng the s i te fo r the Phase I I detai l ed refl ect i on profi l es whi ch wi l l be reco rded duri ng the second year of the resea rch p rog ram .

Sei smi c Profi l es - Ref racton/Wi de-Ang l e Refl ect i on

The refract i on/wi de-ang l e refl ect i on profi l es wi l l be l ocated i n an app roximately X-shaped a r ray cent ered on the Hub s i te . The no rtheast -

.�0 ,::;v �4.

00'tf 0'lf rffe ·�t§ �v,OJ 00 ·.s-0 0''

(J� & v �0� «--o �o

'ti

� 0

r) I

Grayvme rabe"

� r' ... ......,J. '

far!'

- -- -����-- 7- ---- -- -- - -

TENNESSEE

c"tnb � ertan y (Proa d Ptat. ( e111 et ea" '- . ill 1 11?e ., 984)

Figure 22. Locations of proposed refraction and deep seismic reflection to be recorded in the Hub area. The solid lines labeled A define the locations for the refraction/wide-angle reflection profiles. The heavy line is the deep reflection profile. The proposed seismic refraction and reflection profiles are described in table I l l . Previously recorded crustal refraction profiles and the Wabash Valley reflection profiles of Sexton et al. ( 1 986) are also shown. Contours indicate the approximate depth (in feet) to the Precambrian basement.

35•

37"

0 HUB SITE

. .. MO� KY

"" . / ,• · .J f'Cl-· ·-· ·-· ·- · ·J.-.. - . . - . . -7000- lsopach (ft) ; thickness of Cambrian

plus Knox Megagroup

Approximate line of proposed reflection seismic profi le

.1· IL .fiN

)

GRABEN

· · -

0 30 mi 0 50 km Deep tests A Bottom in crystalline rock e Bottom in Mt. Simon or older

Figure 23. Proposed seismic reflection profiles for IBUD site definition . Profiles are described in table I l l . Contours indicate thickness of Cambrian System plus Knox Megagroup (lower Ordovician). Compiled from drillhole and proprietary seismic data.

A. Refraction/Wide Angle Reflection Profiles

• • • • •

Shotpoints: • 200 kg

• • •

400 SGR I l l recorders at 500 m spacing

•

• 500-1 000 kg . 2000 kg

•

B. Deep Reflection CDP Profile (Along NE-SW Refraction Profile)

c.

50 km CDP profile using SGR I l l recorders and vibroseis source at 250 m (750 fl) spacing

Regional Reflection Profiles "'"1 "4----400 km (250 mi) ----•--""'I

wireline or optical fibre telemetry system geophone group interval 55 m ( 1 65 fl)

active seismic channels 240

Vibroseis Source spacing = 55 m ( 1 65 fl) 8-55 Hz Sweep; 1 20 Fold CDP Coverage

D. Detailed Reflection Profiles

r ·e 0 :::.. E ""

ll'l I i

i-- - 1 5 km ( 1 0 mi) �

' '?.

.s-f, �"" , IBUD

' 60

�� "' -50 km (30 mi) Conventional Seismic Reflection Profiling - Vibroseis Source 8-55 HZ Sweep 55 m ( 1 65 fl) Group Spacing, 1 20-Fold CDP Coverage

Figure 24. Deployment plan for IBUD seismic studies.

• • •

w en <( ::c a..

1

51

TABLE I I I

I BUD Sei smi c P rofi l es ( i l l u st rated i n fi gu res 22 , 23 , and 24 )

A . Two 200-ki l ometer ( 125-mi l e ) C rustal Ref ract i on P rofi l es ( Sei smog raph Spaci ng = 500 meters ( 1500 feet ) , Shotpoi nt Spaci n g = 15 k i l ometers (9 mi l es )

B . 50 k i l ometer ( 30 mi l e ) Deep Ref l ect i on Profi l e ( CDP Refl ect i on Dat a , G roup Spaci ng = 250 meter ( 7 50 feet ) , Sou rce Spaci ng = 250 met er { 7 50 feet ) , Record Length = 20 seconds )

C . Regi onal Refl ect i on P rofi l es 400 k i l ometer ( 250 mi l e ) , CDP Profi l i ng , Grou p I nterval = 55 mete rs { 165 feet ) , Sou rce Spaci ng = 55 meter ( 165 feet )

- Covers trans i t i on zone between east-west t rend i ng Rough C reek G raben and northeast-southwest t rendi ng Reel foot R i ft wi t h i n t he Hub s i te . NW-SE l i ne t ransect i n g ent i re ri ft from Shawneetown Fau l t i n I l l i noi s to Penny ri l e Fau l t System i n Kentucky . L i nes across Rough C reek Fau l t Zone , Shawneet own Fau l t , Lu s k Creek Fau l t . Li nes essent i a l ly p a ral l e l to axi s of ri ft i n t rans i t i on zone.

D . Detai l ed Sei smi c Refl ect i on Profi l es 50 k i l ometers { 30 mi l es ) of detai l ed CDP refl ect i on dat a recorded i n a 15 x 15 k i l ometer a rea ( 10 x 10 mi l es ) rep resent i ng the p roposed IBUD s i t e . Group Spaci ng = 5 5 meters ( 1 65 feet ) , Sou rce Spac i ng = 5 5 meters ( 165 feet ) .

southwest p rofi l e ( F i gu res 22 and 23) i s des i gned to cross the Rough Creek G raben and i nvest i gate the deep st ructu re of the I l l i no i s Bas i n . The l ocati on of the p rofi l e i s al so sel ect ed to p rovi de a t i e between the exi sti ng sei smi c studi es i n the a rea , p a rt i cu l a rly the crustal ref ract i on wo rk of Mooney et a l . ( 1983 ) and Gi nzbu rg et al . ( 1 983 ) to the southwest of the Hub s i te ( f i g . 1 4 ) . Addi t i onal l y , t h i s ref ract i on l i ne wi l l be used to i nvesti gate the pos si p i l i ty of a l ower crustal anomaly ( f i g . 17 ) that is ch a racteri st i c of the Reel foot R i ft a rea and pe rhaps the enti re New Md r id R i ft Comp l ex . The l ocat i on of t h i s northeast-southwest l i ne wi l l a l l ow the mapp i ng of th i s l owe r cru stal anoma ly and potent i al deep , l ate P recamb ri an g rabens such as the Grayvi l l e g raben i dent i fi ed by Sexton et a l . ( 1986 ) . These featu res a re expected to be ori ented i n an app roxi mately northeasterly d i rect i on a nd cou l d be t raced from the Reel foot area i nto southern Indi ana and southern I l l i noi s . A cross l i ne ( fi gs . 22 and 23) wi th an i dent i cal 200- k }1bmeter ( 125-mi l e ) l ong depl oyment conf i gurati on ( f i g . 24 ) wi l l be reeurded .�&,<?fin approxi mately east-west d i rect i on al ong the ax i s of the Rough C r�� �aben . I t wi l l be p a ral l el to the maj or struct u ral featu res of the �� (the �\.age G rove-Shawneetown and Rough C reek fau l t zones ) and wi l l p rovfd'e ma� il?lttm� resol ut i on on the deep structu re of thes e fau l ts and rel ated ��"'��ns . The ref ract i on/wi de-ang l e refl ect i on p rofi l es wi l l be reco rded wi'l'h 400 Sei smi c Grou p Recorders ( SGR ) depl oyed at 500-meter ( 1500-feet ) s paci ngs

52

wi th la rge shots at end poi nts and at the center , and smalle r shots d i st r i buted along the p rofi le . The deployment plan i s i llus t rated i n F i gu re 24 . It p rovi des both for deep cove rage u s i ng refract ed a rri vals as well as wi de-angle reflect i ons and for common-depth-poi nt ( CDP ) cove rage of the deep i nterfaces .

The ref ract i on and wi de-angle reflect i on prof i li ng experi ments wi ll ut i li ze SGR i nst ruments avai lable on cont ract from i ndust ry . These i ns t ruments have recently been used on two maj or cru stal sei smi c experi ments conduct ed by the i nvesti gat o rs i n Oklahoma and A rkans a s , and thei r performance was excellent . I n addi t i on , the use of a cont ract crew for the . reco rd i n g i s effi c i ent . Equi pment of thi s type i s not avai lable i n s u ffi ci ent numbe rs withi n gove rnment agenci es or un i vers i t i es , thus cont racti ng i s the best choi ce for data acqui s i t i on . Both the refract i on/wi de-angle reflect i on p rofi les and the deep reflect i on prof i les wi ll employ the s ame cont ract or c rew and ut i li ze SGR ' s wi th the capab i li ty of V i b ros e i s reco rdi n g . These i nst ruments ( SGR I I I reco rde rs ) have s i gn i fi cant adva ntages for cru stal studi es of the type planned he re . F i rst , the sei smog raphs a re i ndust ry standard , hi gh-quali ty di g i tal i nst ruments with la rge dynami c range and b road bandwi dth . They a re also portable and req u i re no cable connect i ons allowi ng effi ci ent operat i on in the fi eld and deployment ove r longe r di stances than normal cable sei smi c systems . The SGR I l l s wi ll wo rk both for explos i ve and V i b rosei s sou rces ; thei r reco rd i ng by cart ri dge magnet i c tape i s i n i t i ated by a rad i o s i gnal from a cent ral controlle r, whi ch also cont rols the sou rces .

Sei smi c Profi les -- Deep Reflect i on Data

Deep sei smi c reflect i on p rofi li ng wi ll be run along the cent ral port i on of the p roposed NE-SW deep cru stal ref ract i on and wi de-angle reflect i on li ne throu gh the Hub s i te ( fi g . 22 ) . Fou r hund red SGR recorde rs wi ll be deployed over a d i stance of 100 k i lomete rs ( 60 mi les ) thus p rovi d i ng a 250 meter { 800 feet ) spaci ng . A vi b rosei s sou rce wi ll be u sed wi th a s ou rce spac i ng ( VP ) of 250 meters ( 800 feet ) . Becau se the recorders can be deployed once for the ent i re 100 k i lometer li ne , the vi brosei s t rucks can move rapi dly down the li ne sweep i ng for seve ral mi nutes at each sou rce poi nt and yi eld a CDP reflect i on p rofi le with nea r-vert i cal to wi de-angle cove rage for the cent ral 50 k i lometers { 30 mi les ) of the li n e . CDP coverage wi ll va ry along the 100 ·k i lometer ( 60 mi le } li ne . The coverage wi ll be li m i t ed near the ends of the li ne and data wi ll be reco rded i n a s i ngle-ended mode . Al ong the cent ral 50 k i lometers ( 30 mi les ) of the li ne , howeve r , the dat a wi ll be reco rded i n a spli t-spread mode and wi ll be of hi gh CDP fold . Du ri ng the V i b rosei s recordi ng , the SGR i nstruments would only have to be servi ced occas i onally to chan ge ca rt ri dge tapes and a few of the i nst ruments would be moved from the start of the li ne to nea r the end of the li ne as V i brosei s t rucks p roceed along the li ne • . The V i b rose i s sweep and the number of sweep� at each VP locat i on wi ll be des i gned to y i eld coherent sei smi c reflect i on res ult s at least 10 k i lomete rs (6 mi les ) away from the V i b rose i s t rucks at any g i ven · t ime . I n the Wabash Valley reflect i on experiment repo rted by Sexton et al . ( 1986 ) , a t est V i b ros e i s reflect i on sei smi c li ne was pe rformed wi th la rger offset , up to 10 k i lometers ( 6 mi les ) , and adeq u ate ene rgy was recorded along the ent i re IO-k i lomete rs (6 mi le ) a rray wi th a relati vely small number of sweeps . With 10 to 20 k i lometers ( 6 to 12 mi les ) of act i ve a rray at any g i ven t i me duri ng the V i b rosei s record i ng , anywhe re from 80 to 160 i nst ruments would be . record i ng the reflect i on dat a for each VP locati on . ( As the Vi b rose i s t rucks move along the li n e , the coverage becomes spli t sp read for the maj ori ty of the li ne rathe r than s i ngle ended . ) Ut i li z i ng these 80 to 160 t races for

53

each shotpoi nt , a wi de ape ratu re and h i gh CDP- fold , deep sei smi c refl ect i on p rofi le may be p repa red by standard i ndust ry proces s i n g . Th i s deployment plan not only provi des for effi ci ent reco rdi ng ( ut i li z i n g the same SRG I I I crew as t he refract i on work and allowi ng for depl oyment over a wi de area wi th smal l operat i onal efforts and expens e ) , but al so a wi de ape ratu re a rray wi l l be recorded w i th a CDP fold from 40 to 80 . Th i s wi ll result i n h i gh-quali ty data with an opti mum depth cove rage of a few ki l ometers down to mi dcrustal depths and as deep as a Moho .

Sei smi c P rofi l es -- Regi onal Refl ect i on P rofi l es

Wi thi n the Hub a rea , reg i onal CDP sei smi c reflect i on p rofi l es wi l l be recorded i n order to defi ne the t rans i t i on between the east-west trendi ng Rough C reek Graben a nd t he nort heast-southwest-t rendi ng Reel foot R i ft , two a rms of the New Mad ri d Ri ft Compl ex. The regi onal prof i l e data wi ll be co l l ected us i ng ei ther a wi rel i ne or telemet ry sei smi c acqu i s i t i on system . A 240 channel system would be used wi th spl i t sp read geomet ry and a 165 foot group i nterval. The p roposed regi onal refl ect i on p rofi l e locat i ons a re shown on Fi gure 23 . Th i s d i stri but i on of l i nes wi ll provide the sei smi c data requ i red to add ress the sa l i ent aspects of the t rans i t i on zone. Emphas i s has been gi ven to the north and northwest bounda ri es of the Reelfoot Ri ft-Rough C reek Graben j o i n wi th i n the Hub s i te, i . e . , the Rough C reek Fau l t Zone, the Shawneetown Fau l t and the Lusk Creek Faul t , because li m i t ed prop ri eta ry sei smi c data i ndi cates that t he ri ft-fi l l i ng sed i ments a re th i ckest adj acent to the northern ri ft bounda ri es . The northwest-southeast sei smi c li ne that extends f rom the Penny ri l e Fau l t Zone on the southeast , to wel l beyond the Shawneetown Fau l t on the northwest , transect s the t rans i t i on between the Rou gh C reek Graben and the Reel foot R i ft . The northwest end of th i s l i ne has been extended to Norri s C i ty i n Whi te Cou nty , I l li noi s i n order to t i e wi th p ropri eta ry sei smi c reflect i on su rveyi ng in southeast e rn I l l i no i s that wi l l be made avai l abl e .

The p ropos al i ncludes 400 k i l ometers ( 250 mi les ) o f sei smi c refl ect i on data that wi l l be acqu i red and processed to a record length of at least 8 seconds . These p rofi l es are des i gned to prov i de excellent resol uti on of the ent i re Phanerozoi c Sect i on and the upper porti on of the c rystal l i ne basement rocks u s i ng sei smi c pa rameters outli ned below . The regi onal reflect i on sei smi c study wi l l focus on acqu i ri ng data from depths of 5 to 9 k i l ometers ( 15 ,000 to 30 , 000 feet ) . The oldest ri ft-f i l l i ng Phanerozoi c or older rocks and l i thol ogi c changes in t he basement rocks rel ated to the ri ft i ng p rocess wi ll occu r i n th i s i nterval .

Sei smi c P rofi l es -- Detai led Reflect i on Data

After process i ng and i nterp retat i on of the refract i on and regi onal refl ect i on data reco rded i n Phase I of the s i te defi n i t i on pla n , reco rdi ng of det ai l ed refl ect i on p rofi l es i s proposed wi th i n an approxi mately 15 by 15 k i l ometer ( 10 by 10 m i le ) a rea centered on the most l i kely ! BUD s i t e . App roxi mately 5 0 k i lometers ( 30 mi l es ) o f convent i onal sei smi c refl ect i on p rofi l i ng wi ll be obtai ned under sepa rate cont ract u s i ng con vent i onal cable V i brosei s met hodol ogy wi th a 8 to 55 hertz sweep a nd an app roxi mately 55 mete r ( 165 feet ) group spaci ng wi th 120- fold CDP coverage. T h e approxi mate confi g­u rat i on of the detai l ed reflect i on profi l es is i l l u st rated schemat i cally i n fi gure 24 . These data wi ll be p ri mar ily used fu rther to defi ne the confi gu­rat i on of fault s , sed i ment a ry un i ts , and basement su rface i n the I BUD s i t e l ocat i on pri or t o t h e fi nal s i te sel ecti on . I n t he post -dri l li ng phase of the

54

Hub study , these dat a wi l l be used to extend the geol ogi cal and geophys i ca l d ata deri ved from the hol e away f rom the d ri l l ho l e l ocat i on .

Data Acqui s i t i on and P rocess i ng

Data acqu i s i t i on and p roces s i ng fo r Hub sei smi c stud i es wi l l be acq u i red and p roces sed by t he s ame i ndust ri al sei smi c cont ractor i n order to faci l i t ate commu n i cat i on , qual i ty cont rol and to l ower cost , i f pos s i bl e , i n a manner cons i stent wi th t he goal s of th i s p roposa l .

A bri ef summa ry of the recommended pa rameters for reco rdi ng the data a re as fol l ows :

1 ) Number of act i ve sei smi c chan nel s : 240 2 ) Geophone g roup i nterval : 1 65 feet 3) Sei smi c sp read : Spl i t sp read 20 , 130-495 feet , 495- 20 , 130 feet

( ap p roxi matel y ) 4 ) Geophones : D i gi tal grade , 8 o r 10 Hz . , 1 8 pe r grou p , i n - l i ne pattern ove r

165 feet 5 ) Sou rce : vi b rators , zone act i ve , i n- l i ne patte rn ; use vi b rators wi th a

peak fo rce of app roxi mately 27 ,000 to 30 , 000 l bs . each . Sweep Length : as short as poss i bl e , p robably a rou nd 8 seconds . Sweep frequency : app roxi mately 8 to 55 H z .

6 ) Sou rce poi nt or vi brat i n g poi nt i nterval : 1 6 5 feet 7 ) Resu l t i ng effort : 120 fol d 8 ) Sampl e i nterval for data : 4 mi l l i seconds 9 ) I nst ruments : wi re l i ne or opt i cal fi b re tel emet ry system .

P rocess i ng of the data wi l l b e by sei smi c cont ractors fol l owi ng a p rocess i ng st ream s i mi l ar to that used succes sfu l ly by u n i ve rs i t i es and compani es who have gat hered sei smi c refl ect i on data in the a rea . Vel oci t i es for the refl ecti on p rocess i ng wi l l be avai l ab l e f rom wel l l og data ( Sexton et a l . , 1986 ) and from the wi der operat i ve deep ref l ect i on dat a and refract i on/wi de-angl e refl ect i on dat a .

The data wi l l necess a ri ly requ i re " c rooked-l i ne " p rocess i ng s i nce l ong st rai ght roads a re not avai l ab l e in t h i s p a rt of the worl d , and l ong bul l dozed t rai l s wou l d not be pract i ca l and may not be permi tted i n some a reas s i nce some of the Hub a rea i ncl udes U . S . Nati onal Forest l and . It appea rs that el evat i on stat i c cor rect i on , pl u s automated l ong-peri od and s hort-peri od stat i cs wi l l be adequate to effect su rface correcti ons . Shou l d i t be neces s a ry to determi ne l ow vel oci ty l ayer depths and ve l oci ti es i n the fi el d , sha l l ow sei smi c refracti on s u rveys can be accomp l i shed . The spat i al samp l i ng i nte rval of 165 feet shou l d be mai nta i ned th rou gh the proces s i ng . I f ho ri zon­ta l ly t ravel l i ng noi se trai ns wi th wave l engths l onger than l65 feet a re p resent , i t may be neces s a ry to comb i ne 2 or 3 g rou ps per channel i n p rocess ­i ng . The spec i fi cati ons wi l l b e submi tted i n a fo rmat for pe rformance and p rocedu res cons i stent wi t h I l l i noi s and Kentucky l aw and the I nte rnat i ona l Geophys i cal Cont ract Manual . Qual i ty cont rol wi l l be ensu red by a fu l l -t i me con s u l t i n g qual i ty cont rol expert who wi l l be res pons i b l e to the proj ect d i rector and ass i gned to D r . John Sexton ( Southern I l l i no i s Un i vers i ty ) .

55

Sei smi c St rat i graphy

I n order to sel ect the best pos s i b l e s i te wi thi n the Hub area a regi onal g ri d of sei smi c data t i ed to ava i l ab l e shal l ow wel l cont rol i s es senti al . The reg i onal and detai l ed refl ect i on sei smi c dat a , and the ava i l a bl e regi onal sei smi c l i nes and wel l l ogs i n the southe rn I l l i no i s Bas i n wi l l p rovi de the data base for i nterp ret i ng the sequence strat i g raphy p ri or to dri l l i n g . The combi nat i on of a sequence strat i g raphi c and st ructu ral analys i s wi l l a i d i n p reci s e s i te sel ect i on .

The appl i cat i on of sei smi c strat i g raphi c i nterp ret at i on techni ques to sedi ment a ry bas i n analys i s has resu l ted i n a new way to subdi v i de , cor rel ate , and map sed i ment a ry rock s cal l ed sequence analys i s , whi ch uti l i zes sei smi c , wel l , and out crop data to g roup rocks i nto chron ost rat i graphi ca l ly constrai ned genet i c i nterva l s . These i nterval s , cal l ed depo s i t i ona l sequences or su cces ­s i ons of geneti cal ly rel ated st rata bou nded above and bel ow by unconformi t i es , and systems tract s o r l i nkages of contemporaneou s depos i t i onal systems bou nded above and bel ow by physi cal d i scont i nu i t i es wi thi n the sequences , have p redi ctabl e stratal patterns and l i thofaci es that ca n be recogn i zed i n outc rops , on wel l l og s , and sei smi c sect i ons . Depos i t i onal sequences and systems t racts provi de a new way to establ i sh a chronost rat i g raphi c co rrel at i on framework based on phys i cal as wel l as bi ost rat i g raphi c cri t eri a . Depos i t i onal sequences correl ate throu ghout sed i menta ry bas i n s and p robably correl ate gl obal l y . Parti cu l ar sets of depos i t i onal p roces ses , and thu s ce rta i n depos i t i onal envi ronments and l i thofaci es , are associ at ed with part i cu l a r systems t racts . It is bel i eved that the fu ndamental cont rol of sequence strat i g raphy i s sho rt-term eu stat i c changes of sea l evel superi mpos ed on l onge r-term tecton i c changes . Sequence st rat i g raphy has the potenti al to p rovi de a un i fyi ng con cept to sedi ment a ry rocks s i mi l a r to the way pl ate tecton i cs p rov i d es a un i fy i ng concept for tecton i cs and st ructu re.

I nterp retat i on

I nterp retat i on of the ref ract i on/wi de- angl e refl ect i on dat a wi l l i ncl ude t ra vel -t i me i nvers i on methods a nd synthet i c sei smog ram model i ng . Vel oci ti es for maj or geol ogi c u n i t s of the cru st i n the I BUD area wi l l be determi ned from the ref ract i on and refl ect i on p rofi l i ng data . I n i t i al i nterpretat i ons du ri ng the p roce s s i ng of the Phase I data wi l l a i d i n defi n i ng of the exact l ocat i on , geomet ry and pa ramete rs for the detai l ed refl ect i on p rofi l i ng d u ri ng Phase I I ; appl yi ng speci al i zed p roces s i ng steps , and refi n i ng the process i n g steps for opt i mum record sect i on s .

After compl et i on o f the Phase I and I I data acqu i s i t i on and process i ng , a un i fi ed i nterpretat i on of a l l sei smi c data wi l l be performed by the resea rch team . Thi s i nterp retati on wi l l al so i nteg rate the p revi ous sei smi c stud i es i n the a rea as wel l as potent i al -fi el d data and geo l ogi cal i nformat i on , i nc l ud i ng subsu rface data from deep dr i l l hol es ( see Admi n i strat i ve St ruct u re for res pons i bi l i t i es ) .

Potent i a l Fi el d St udi es

Gravi ty and magnet i c anomaly studi es i n and a round the Hub a rea a re v ita l geophys i cal components of the I BUD s i te defi n i t i on p rog ram . G ravi ty and magnet i c stud i es , i n concert with sei smi c and magnet otel l u r i c studi es , wi l l p rovi de val uabl e geophysi cal i nformat i on on the regi onal and l ocal geol ogy of

56

the Hub s i t e . The acqu i s i t i on , process i ng , and i nterpretat i on of gravi ty and magnet i c data a re ext remely cost effect i ve . Thei r cost i s but a fract i on of the i r sei smi c cou nterparts .

The regi onal grav i ty and magnet i c cove rage needed for the ! BUD s i t e wi l l be extended beyond the geog raphi cal l i mi ts of the Hub s i te to i ncl ude profi l e cove rage a l ong the regi onal sei smi c fract i on a nd refl ect i on l i nes , whi ch extend beyond the boundari es of the Hub s i t e . Areal gravi ty and magnet i c coverage beyond the Hub s i te i s req u i red t o devel op the regi ona l framewo rk of the a rea and to mi n i m i ze the ed ge effects that occur duri ng the p roces s i ng of dat a . P rof i l e coverage al ong the regi on al sei smi c l i nes serve to const rai n the i nt e rp retat i ons of the sei smi c dat a .

The avai l abl e gra vi ty data set s i n and a round the H u b area d o not meet the cu rrent req u i rements for cons i stency , stat i on dens i ty , and accu racy . D i s cont i nu i t i es between su rveys conducted at d i ffe rent t i mes by di ffe rent i nvest i gators us i ng d i ffe rent i nst ruments , standa rds , and process i ng techn i q ues wi l l cause seri ous degradat i on of the resu l ts produced by modern quant i t at i ve p rocessi ng of the d at a . I t is i mportant that a coherent g ravi ty dat a set be obt a i ned i n and arou nd the Hub s i t e . The gravi ty data can be obt a i ned by occupy i ng avai l ab l e a nd acceptabl e s i t es w ith adequate el evat i on cont rol .

Si nce cons i stency i n areal magnet i c coverage i s al so i mport ant , the avai l ab l e aeromagnet i c data shou l d be suppl emented by a ground magnet i c s u rvey condu cted concu rrent ly with the a real grav i ty su rvey . Such a su rvey i s a cost effect i ve way to obta i n qual i ty a real dat a , p rovi d i ng care i s exe rci s ed to el i mi nate cu l tu ra l and nea r-su rface geol ogi c noi s e .

Reg i onal gra v i ty a nd magnet i c p rofi l e coverage i s requ i red al ong regi onal and det a i l ed sei smi c refract i on and refl ect i on l i nes . Extens i ve el evat i on cont rol wi l l be created d u ri ng the sei smi c su rveys to ai d acqu i s i t i on of gravi ty dat a . The ground magnet i c data wi l l be acq u i red u s i ng a t ruck-mou nted magnetometer system owned by the USGS . Thi s system i s capabl e of col l ect i ng data at 7-meter ( 20-foot ) i nterva l s wi th the i nst rument t ravel i ng at 20 mi l es p·er hou r . Negl ect i ng head i ng e rror and cul tu ral noi se , system accu racy i s pl u s or mi nus 2 gammas . Thi s system wi l l be used i n al l the pl anned �rou nd magnet i c su rvey i ng . Al thou gh P recamb ri an basement l i es at great depth wi thi n the study areas , the detai l ed t ruck-mou nted magnet i c su rvey may provi de val uabl e i nformat i on on shal l ow i nt rus i ve bod i es , poss i b l e mi neral i zat i on a l on g faul ts , and featu res t rendi ng para l l e l to or lyi ng between fl i ght l i nes of exi st i ng aeromagnet i c su rveys .

Al though potent i al fi el d dat a are not un i qu e , these dat a , i n part i cu l a r the g rav i ty dat a , provi de s i gn i fi cant const rai nt on the i nterp ret at i on of the sei smi c dat a . Ocol a and Meyer ( 1973 ) state : 11 The correctness of the ( sei smi c ) model so deri ved i s adjudged by comput i ng the model 1 s g ravi tat i onal effect •••• and by compari son wi th observed gravi ty . 1 1

Acqu i s i t i on of new grav i ty a nd ground magnet i c data i n a nd adj acent to the Hu b s i te that cannot be obtai ned by the truck-mou nted magnetometer system , wi l l be accomp l i shed by Northe rn I l i noi s Un i vers i ty ( N I U ) and the I l l i noi s Stat e Geol ogi cal Su rvey · ( ! SGS) c rews u s i ng N I U LaCoste-Romberg equ i pment and i nst rumentati on under the di rect i on of D r . C . P. E rvi n and Dr. P . C. Hei gol d , i n consu l tat i on wi th D r . T . C . Hi l denbrand . U . S . Geol ogi cal Survey person nel

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wi ll be respons i ble for the acqu i s i t i on of all g round magnet i c data gathered wi th the t ru ck-mou nted magnetometer system .

G ravi ty and grou nd magnet i c data wi ll be reduced at N I U , the ISGS , and the USGS . P reli mi nary modeli ng wi ll be done at N I U and the I SGS . Map generat i on and the fi nal data p roces s i ng wi ll be done unde r the d i rect i on of H i ldenb rand at the USGS . I nterp retat i on of the p roces sed data i s a nt i c i pated to be a cooperat i ve effo rt by Drs . T . c . Hi lden b ra nd , P . C . Hei gold , C . P . E rv i n , and W . J . H i nze.

Afte r regi onal grav i ty and magnet i c data have been assembled for the study a rea , standard g ri dd i ng and plott i ng p rocedu res wi ll be employed to p rocess the data to map form . The magnet i c su rveys wi ll be sta ndardi zed t o a selected refe rence elevat i on above ground level . The p rocess req u i red to comp i le a cons i stent magnet i c dat a set i nvolves cont i nuati on of data to a reference su rface, i nteg r i ty adj ustments to achieve data compatabi l i ty , and careful appli cat i on of spli ci ng techni q ues to me rge the data . The ava i l­abi li ty of a d i g i tal, compat i ble magnet i c data set wi ll allow calculat i on of a vari ety of cha racteri st i cs , such as wavelength or t rend .

F i lteri ng operat i ons wi ll be carri ed out to convert the data to a form that enhances li thologi c a nd st ructu ral bounda ri es followi n g the assembly of hi gh-quali ty and con s i stent magnet i c and g ravi ty data sets . These ope rat i ons gene rally i nclude ( 1 ) reduct i on of magnet i c data to the pole , an attempt to shi ft anomaly patterns d i rectly above the associ ated sou rces ; ( 2 ) fi rst vert i cal deri vat i ve of the gra v i ty and magnet i c data , to sharpen or resolve hi gh-g radi ent anomali es ; ( 3 ) g rad i e nt of the g rav i ty and pseudo-g rav i ty fi elds , to deli mi t lithologi c or structu ral bou nda ri es ; ( 4 ) regi onal- res i du al g rav i ty anomaly sepa rat i on , to sepa rate near-su rface sou rces from deep sou rces ; and ( 5 ) shaded magnet i c and gravi ty reli ef analys i s , to enhance anomaly t rends . A cons i de rable amount of add i t i onal potent i al fi eld i nformat i on can be obtai ned by study of f i lt e red anomaly maps . Analys i s of all the compi led maps by the mult i d i sci pli na ry teams wi ll result i n consi stent and thorough study of all potent i al fi eld dat a acq u i red .

Depths to magnet i c basement a nd p ropri eta ry reflect i on sei sm i c data of the study a rea suggest that the north-t rend i ng Reelfoot Ri ft and the west­t rend i ng Rough C reek G raben i ntersect in southe rn I lli no is and weste rn Kentucky . Further regi onal potent i al fi eld quant i tati ve analys i s and compar i son wi th reflect i on sei smi c data is requ i red to better u nde rstand the reg i o n of i ntersect i ng grabens , i . e . the Hub s i t e . Potent i al fi eld analys i s wi ll i nclude appli cat i on of several i ndependent i nvers i on techn i ques i nclud i ng bas i c Vacq u i er i nvers i on , We rne r deconvolut i on , s i multaneou s li nea r i nvers i on of magnet i c and g ravi ty dat a , and Talwan 1 -type i nvers i on to obt a i n average est i mates of depth to crystalli ne basement . Maj or i nd i v i dual anomali es and selected p rofi les t ransect i ng g rabens and fault zones wi ll be analyzed for depth sou rces . The result i ng gene rali zed basement depth map of the Hub a rea wi ll a i d studi es of I lli noi s Bas i n st ructu ral development and wi ll flag a reas req u i r i ng more detai led analys i s .

Detai led modeli n g of the regi onal potent i al fi eld data wi ll be done to ascertai n the geomet ry a nd physi cal p ropert i es of pert i nent geologi c featu res . A 2 1/2 d i mensi onal modeli ng p rog ram based on generali zed i nve rs i on theo ry wi ll be employed to s i mult aneously i nvert g rav i ty and magnet i c data . The prog ram requ i res an i n i t i al est i mate of depth , shape , den s i ty , and suscept i ­b i l i ty of sou rces , and then vari es selected pa ramete rs i n an attempt to reduce

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the wei ghted root-mean-squa re error between the observed and ca l cu l ated g rav i ty and magnet i c fi e l ds . The geomet ry and physi cal p rope rt i es of i nter­est i ng featu res wi thi n the crust can then be determi ned .

Avai l abl e d ri l l ho l e i nformat i on , s i mu l taneous i nvers i on of g ravi ty and magnet i c dat a , sei smi c ref l ect i on and refract i on data , and geol og i c reason i ng wi l l resu l t i n i dent i fi cat i on of a speci fi c area wi thi n the Hub a rea that i s the l i k ely ta rget fo r the I BUD . Thi s area wi l l be subj ected to more detai l ed , l ocal i zed sei smi c refl ecti on , grav i ty , and grou nd magnet i c su rvey i ng ori ented towa rd s i te sel ect i on .

Phase I I sei smi c refl ect i on profi l i ng wi l l al s o provi de many new l oca­ti ons wi th el evat i on cont rol s . These l ocati ons wi l l be occupi ed d u ri ng the detai l ed Phase I I , g ravi ty and ground magnet i c su rvey i ng for reasons s i mi l a r to those g i ven i n the d i scuss i on of the regi onal g rav i ty and ground magnet i c work for Phase I . Phase I I areal gravi ty and ground magnet i c cove rage wi l l requ i re new l ocat i ons wi th approp ri ate el evat i on cont rol . A c l ose-spaced , t ruck-mounted magnetomete r su rvey wi l l be app rop ri ate . P roces s i ng and analy­s es of the Phase I I potent i al fi el d data wi l l be anal agous to the reg i onal procedu res .

Magnetotel l u ri c I nvest i gat i on

Magnetotel l u ri c sound i ngs of geol ogi cal and geophys i ca l target s such as und i s tu rbed c ru s t , the Rough C reek Fau l t , the Shawneetown Fau l t , the Lusk Creek Fau l t Zone , the Rough C reek Graben , and the Ten nessee- I l l i noi s-Kentucky Magnet i c L i neament wi l l be i nvest i gated by l ocat i on of sound i ngs at a stati on spaci ng l ess than or equal to 4 k i l ometers ( 2 . 5 mi l es ) a l ong the p roposed reg i onal sei smi c l i nes . Add i ti onal Phase I I magnetotel l u ri c soundi ngs w i th cl oser spaci r:igs wi l l be l ocated wi thi n the 15 by 1 5 k i l ometer ( 9 by 9 mi l e ) a rea of conce rn together wi th the pl anned detai l ed sei smi c refl ect i on and det ai l ed grav i ty and ground magnet i c su rvey .

The acqu i s i t i on of the magnetotel l u ri c data wi l l be superv i s ed by D r . W . D . Stanl ey uti l i z i ng eq u i pment o f the USGS . I nterp retat i on wi l l be performed us i ng standard USGS i nvers i on al gori thms . Magnetotel l u r i c i nterp retat i on wi l l be constra i ned i n an i terat i ve app roach us i ng i nterpretat i ons deri ved f rom the col l ateral stud i es .

ADMI N I STRAT I VE STRUCTURE AND MANAGEME NT PLAN

I nt roduct i on

The p roposed I BUD s i te defi n i t i on resea rch prog ram �equi res an admi n i s ­t rat i ve st ructu re and rel ated management pl an that wi l l i nsu re a cost­effect i ve operat i on l ead i ng to the successfu l acq ui s i t i on , proces s i ng , and i nte rp retat i on of the data req u i red to s i te the I BUD i n a t i mely manne r . The res ea rch pl a n ci ted above can on l y be achi eved i f respons i bi l i t i es and l i nes of commun i cat i on a re estab l i shed that wi l l prov i de for the req u i red i ntegra­t i on of i nterd i s ci p l i nary resu l ts and i nterpretat i ons and the t ransfe r of the i nteg rated i nterp ret at i on and recommendat i ons to I BUD management .

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Admi n i s t rat i ve St ruct u re

F i gu re 25 establ i s hes the admi n i st rat i ve struct u re of the el ements of the program . The I l l i noi s State Geol ogi cal Su rvey wi l l manage the s i te defi n i t i on and s i te sel ect i on p roj ects on behal f of and i n cooperat i on wi th the fund i ng agenci es . ! BUD management wi l l be expanded i n a manner cons i stent wi th the organ i zat i on requ i red by or negot i ated wi th the fundi ng agen cy .

The ! BUD management wi l l be advi sed by a n I BUD Sc i ent i fi c Ad v i s o ry Commi ttee cons i st i ng of :

Dav i d Ande rson - Uni vers i ty of I l l i noi s Thomas C . Bushba ch - I l l i no i s State Geol og i cal Survey Wi l l i am J . Hi nze - Pu rdue Uni vers i ty Marcus E . Mi l l i ng - Ch i ef Geol og i st , Arco Oi l and G as Company Raymond Si ever - Ha rvard Uni vers i ty Lau ren ce S l oss - Northweste rn Un i vers i ty Ri chard Stea rns - Vanderbi l t Un i vers i ty Peter R . Va i l - Ri ce Un i vers i ty Jan van Sant - V i ce P res i dent Resea rch , Pennzo i l Expl orat i on and

P roduct i on Company

The admi n i st rat i ve struct u re ut i l i zes d i s c i p l i ne-ori ented , i nvesti gat i ve teams that a re respons i b l e for t he vari ous geophys i cal su rveys u nder the gu i dance of the Si te Def i n i t i on Stee ri ng Commi ttee .

The ! BUD P roj ect D i rect o r , Mr. J . J ames Ei del , wi l l have the respons i bi ­l i ty of d i rect i ng the sci ent i fi c and admi n i st rat i ve ta sks of the p roj ect and ensu ri ng t i mely and sat i sfactory fu l fi l l ment of the proj ect goal s . The ! BUD P roj ect D i rector wi l l serve as an ex-offi c i o member of t he S i te Defi n i t i on Steeri ng Commi ttee � wh i ch wi l l answer di rectly to the ! BUD management . Th i s commi ttee wi l l be respons i b l e for the qual i ty of the sc i ent i f i c p roduct ; t i mely commun i cat i on , report i n g , i nteg rat i on of resu l t s ; and recommendat i on of s i t e ( s ) to the S i te Sel ect i on Panel , wh i ch wi l l i nc l ude t he S i te Defi n i t i on Commi ttee. Wi th the a i d and adv i ce of the extern a l S i t e Defi n i t i on ( Geo­phys i cal ) Advi sory Commi ttee , the S i te Defi n i t i on Steeri ng Commi ttee wi l l mon i tor al l el ements of the stud i es from pl ann i ng to fi nal i nterp retat i on and recommendat i on . Al l cont racts to be l et by the subcont ractor sci ent i sts must be app roved by ! BUD management .

The Steeri ng Commi ttee wi l l operate u nder a des i gn ated cha i rman , Wi l l i am J . H i nze and wi l l have overa l l res pons i b i l i ty for the s i te defi n i t i on program . They wi l l establ i sh l i nes of commu ni cat i on wi th and be advi sed by a S i t e Def i n i t i on Advi sory Commi ttee.

The Site Defi ni t i on Ad vi sory Commi ttee wi l l be organ i zed by the Steeri ng Committee wi th the advi ce and approval of t he ! BUD management . I t wi l l con­s i st of 10 sen i or sci ent i sts from academi a , i ndu stry , and governmenta l agenci es who a re not d i rect ly rel ated to the ! BUD prog ram , but a re recogn i zed experts i n conduct i ng and i nterp ret i ng geophy s i cal prog rams . The Si te Defi ­n i t i on Advi sory Commi ttee wi l l ope rate under a des i gnated chai rman , p rovi de t i mely advi ce to al l i nvest i gat i ve teams , and ass i st the S ite Defi n i t i on Stee ri ng Committee i n rev i ewi ng and mon i tori ng a l l phases of the prog ram from pl ann i ng to fi nal i nterp retat i on . The rol e of the commi ttee wi l l be advi sory .

IBUD MANAGEMENT

Il linois State Geological Survey L--{ U D S C I Morris W. Leighton, Chief I 18 A

BUSINESS OFFICE

Admin. Assistant

REGIONAL CRUSTAL CHARACTERIZATION GROUP

I PROJECT DIRECTOR

Eidel

l I SITE DEFINITION

STEERING COMMITTEE

Hinze, Ch. Hildenbrand

Vail

I

Heigold McGinnis

1- _ _ -1 SITE DEFINITION ADVISORY COMMITTEE

SITE DEFINITION GROUP

MAGNETOTELLURICS

Stanley �

CRUSTAL SEISMIC STUDIES

SEISMIC REFLECTION STUDIES �

GEOLOGIC STUDIES

Lidiak, Nelson, Vail Braile, Keller, Sexton

Figure 25. IBUD Site Definition Management Plan.

Sexton, Braile, Vail

GRAVITY STUDIES

Heigold, Ervin, Hinze, McGinnis I--+- MAGNETIC STUDIES

Hildenbrand, Heigold, Hinze

SEISMIC STRATIGRAPHY

Vail, Sexton, Braile, McGinnis

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The membe rs of each di s ci p l i ne-o ri ented i nvest i gat i ve team a re l i sted on F i gu re 25 . The member l i sted f i rst is the des i gnated cha i rman . The chai rmen wi l l have res pons i bi l i ty for recommendi ng al l sci ence and fi nanci al aspects of the team ' s prog ram and for ca rryi ng out a l l app roved recommendat i ons regard i ng thei r proj ect . Deci s i ons rega rdi ng sci ent i fi c and fi nanci al matters by the i nvest i gati ve t eams wi l l be subj ect to revi ew by the S i te Defi n i t i on Steeri ng Commi ttee and the Si te Defi n i t i on Advi sory Commi ttee to i nsu re that the stud i es and f i nances of the i nd i v i dual i nvest i gat i ve teams a re compat i b l e and coo rd i n at ed wi th the overa l l obj ect i ves of the project .

Geophysi cal data wi l l be made avai l ab l e to a l l membe rs of the S i te Def i n i t i on Commi ttee for i nterp ret at i on . The chai rmen of each i nvest i gat i ve team wi l l have the respons i b i l i ty of i nteg rat i ng the i nterp retati ons of hi s team . The Si t e Defi n i t i on Steeri ng Commi ttee wi l l have the respons i b i l i ty of b ri ngi ng together the i nterp retati ons i ntegrat i ng the i nvest i gati ve team repo rts , and recommendi ng an I BUD s i t e or si tes . P ri me respon s i b i l i t i es of the i nvest i gat i ve teams i ncl ude report i ng resu l ts i n a t i mely fashi on at regu l a r i nterval s and the i ntegrat i on of i nterp retat i ons of i nvest i gat i ve teams .

Quart erly , annual and f i nal wri tten report s wi l l be requ i red of al l segments of the program to moni tor p rog ress and achi eve desi red i nteg rat i on of i nterpretat i ons . Conferences wi l l be hel d throughout the p roj ect , i nc l ud i ng wo rk i ng g roup meet i ngs whe re the i n vest i gat i ve t eams wi l l report to each other i nformal l y on p rogres s , pl ans , probl ems , and resu l t s . These meet i ngs wi l l serve to i nteg rate the resu l ts of the vari ous stud i es . Add i t i onal meet i ngs wi l l be hel d as requ i red to revi ew the progress of the prog ram wi th the S i t e Defi n i t i on Adv i s o ry Commi ttee, the I BUD Coord i nat or a nd management , and DOSECC rep resentat i ves .

SCHEDULE OF ACT I V I T I ES

The schedu l e of act i v i t i es for the I BUD s i te defi n i t i on i s summa ri zed i n Tabl e I V wi th a b reakdown for ea ch i nvest i gat i ve team . By judi c i ous tel escopi ng of effort , the s i te defi n i t i on p rog ram that wou l d normal ly take 2 1/2 yea rs cou l d be comp l eted i n two yea rs i nc l udi ng data acq u i s i t i on , p roces s i ng , and i nterp retat i on .

The fi rst yea r wi l l focu s on reg i onal stud i es withi n and i mmedi ately adj acent to the Hub s i te for the p u rpose of cha racteri z i ng the regi onal geol ogy of the crust wi thi n the a rea and i dent i fyi ng an approxi mately 15 by 15 k i l ometer (9 by 9 mi l e ) s i te for detai l ed study . The second year wi l l focu s on detai l ed study of thi s s i te . The fi nal 6 months of the p rog ram wi l l i nvol ve the S i te Defi n i t i on Commi ttee i n s i te sel ect i on i ncl udi ng fi nal p re­S i t e Sel ect i on Work shop ana l ys i s and re- i nterp ret at i on , i nt e ract i on w ith the I BUD coordi nator , part i c i pat i on i n the S i te Sel ect i on Work shop , and recommendat i o n of s i te ( s ) to I BUD management .

TABLE IV

Schedul e of Acti viti es , IBUD Site Defini tion Project

Activities

Award of G rant

Geo l ogi c I nvest i gat i ons P a l eozo i c Geol ogy -Acq u i re l ogs & maps -Synthes i ze data i nto map s , etc . - I nteract wi t h other stud i es Basement Geol ogy -Acq u i re l ogs and samp l es -An a l yze samp l es - I nteract with ot her studi es

Reg i onal Refl ect i on Sei s m i c P rog ram -Speci fy sei smi c l i nes and i ni t i a l

acqu i s i t i on pa rameters -Cont ract i ng & permi tt i ng - F i el d tests & data acqu i s i t i on -Data p rocess i ng - I nterp ret at i on - I nteract wi th ot her studi es

Detai l ed Refl ect i on Sei smi c P rog ram -Speci fy sei smi c l i nes & i n i t i al

acqu i s i t i on p a ramet ers -Cont ract i ng & permi tti ng -Fi e l d tests & DHTA acq u i s i t i on -Data p roces s i ng & analys i s - I nterp retat i on - I nteract wi th other studi es

Crustal Ref l ect i on and Refract i on Sei smi c P rogram -Speci fy sei smi c l i nes -Cont ract i ng & permi tt i ng

Year 1 Year 2 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12

Year 3 1 2 3 4 5 6

Acti vi ties

-Data acqu i s i ti on -Data proces s i ng & ana l ys i s - I nterpretati on - I nteraction wi th other studi es

Regi onal Gra v i ty & Magneti c Program -Assembl e , eval uate & i ntegrate ava i l abl e

gra v i ty & magneti c data - Prepare reg i onal gra v i ty & magnet i c

anomal y maps -Acqui red process regi onal gra v i ty

magneti c data -Model i ng & I nterpretati on - I nteract wi thother stud i es

Deta i l ed Gravi ty & Magneti c Program -Acqu i re & process deta i l ed gra v i ty &

magnet i c data - Prepare detai l ed maps -Model i ng & i nterpretat i on - I nteract wi th other studi es

Magnetote l l uri cs Program -Sel ecti on of soundi ng s i tes &

acqu i s i tion parameters -Regi onal data acqui s i ti on -Deta i l ed data acqu i s i ti on -Model i ng & i nvers i on - I nterpretation· - I nteract with other stud i es

Reports

Conferences

TABLE IV (conti nued)

Year 1 1 2 3 4 5 6 7 8 9 10 11 12

x x x

x x x

x

Year 2 1 2 3 4 5 6 7 8 9 10 11 12

x x x

x x

*

x

Year 3 1 2 3 4 5 6

*

x x

64

PERSONNEL

The personnel i nvolved in t h i s p roj ect a re experi enced seni or i nvest i gators who have p revi ously organi zed , conducted , i nt erp reted , and repo rted on studi es i n the mi dcont i nent reg i on . The Stee ri ng Commi ttee of t he I BUD Si te Defi n i t i on p roj ect cons i sts of W illi am J . Hi nze , chai rman , Paul C . Hei gold , Thomas G . H i ldenb rand , and Lyle McGi nn i s . The P roj ect D i rect or i s J . J ames E i del.

J . James Ei del i s P ri nci pal Geologi st and Head of the M i ne ral Res ou rces G roup of the I lli noi s State Geologi cal Su rvey . He was formerly the U . S . Explo rat i on Manage r for the Hanna Mi n i ng Company and managed world-wi de explo rat i on efforts for 18 yea rs . He is a former member of the NAS/ NRC Cont i nental Sci ent i f i c Dri lli ng Commi ttee and Vi ce-P res i dent and Chai rma n of the Resea rch Commi ttee of the Soci ety of Econom i c Geolog i sts . H i s resea rch efforts focus on the ri ft-related ori g i n of the st ruct u rally cont rolled mi nerali zat i on of the southe rn I lli no i s Bas i n .

W illi am J . Hi nze i s P rofessor of Geophy s i cs at Pu rdue Uni ve rs i ty and a lead i ng author i ty on m i dcont i nent geophys i cs . He h as been i nvolved i n a vari ety of regi onal and detai led geophysi cal su rveys i n the mi dconti nent for over 30 yea rs . Most recently he was co-p ri nci pal i n vesti gator on one of the maj o r proj ect s of the U . S . Nuclea r Regulatory Commi s s i on 1 s New Madri d Sei smo­Tect on i c P rog ram . He i s a member of numerous nat i onal a nd i nternati onal sci ent i fi c bod i es and forme rly was a member of the U . S . Cont i nent al Sci ent i fi c Dri lli ng Commi ttee .

Paul c . Hei gold i s Lead Geophys i c i st at the Illi noi s State Geologi cal Su rvey . Over the past 24 yea rs wi th the Illi noi s Su rvey he h as been act i ve i n g rav i ty , mag net i c , sei smi c , and res i st i v i ty stud i es th roughout the Illi noi s Bas i n . He has maj or resea rch i nterest i n explo rat i on geophysi cs and earthquake sei smology . Hi s pu bli cat i ons cover a broad range of I lli no i s Bas i n geophys i cal subj ect s .

Thoma s G . H ildenb rand i s Sect i on Chi ef , Cont i nental I nteri or Geophysi cs Sect i on , B ranch of Geophys i cs , U . S . Geologi cal Su rvey . D r . H i ldenbrand i s a member of nume rou s U . S . Geolog i cal Su rvey and n at i onal committees deali ng wi t h potenti al-fi eld dat a . H e i s t h e lead pe rson i n t h e p repa rat i on of the G rav i ty Anomaly Map of North Ameri ca . Hi s p ri nci pal resea rch i nterest a re regi onal geophys i cs , tecton ophys i c s , and mathemat i cal geophys i cs . He has extens i ve mi dcont i nent experi ence and was one of the fi rst to recogni ze mi dcont i nent ri ft i n g .

Lyle D . McGi nn i s i s cu r rently Manager , Geology and Geophy i cs Sect i on , E ne rgy and Envi ronmental Systems Di v i s i on , Argonne Nat i onal Laboratory . D r . McGi nni s has had a di st i ngu i s hed ca ree r a s a geophysi cal educator and resea rch­e r . He has conducted geophysi cal p rog rams i n a wi de range of te rrai ns and cou n t ri es . A maj o r i nterest i s the geophys i cs and tect on i cs of the U . S . con­t i nental i nteri or where he was f i rst to i dent i fy the Reelfoot R i ft wi th C . Pat ri ck Ervi n .

Peter R . Vai l i s W . Mau ri ce Ewi ng Professor o f Oceanography at R i ce Un i vers i ty . He was fo rme rly Sen i or Resea rch Sci enti st wi th E xxon P roduct i on Resea rch i n Houston . He i s DNAG co-chai rman on Sedi ment a ry Cover of the C raton , member of the COCORP Advi sory Commi ttee, and was SEG D i st i ngui shed Lect u rer and SEPM Di st i ngu i shed Guest Speaker. D r . Vai l i s an ori g i nator of

65

the sci ence of sei smi c st rat i g raphy and organi zed the AAPG-SEG School on St rat i g raph i c I nt rep ret ati on of Sei smi c D at a . He was AAPG D i st i ngui shed Lectu re r. 1975-76 .

The fol l owi ng geophys i ci sts and geol og i sts wi l l serve as p ri nci pal i n vest i gators on t he I B UD S i te Defi n i t i on P rogram :

Law rence W . Bra i l e i s Professor of Geophys i cs at Pu rdue Uni ve rs i ty . P rof . Brai le has a broad range of experi ence i n c rustal sei smol ogy , potent i al ­fi el d dat a , and tecton i c s . He served as co-p ri nci pal i nvesti gator on the NRG New Mad ri d Sei smo-Tecton i c P rog ram and cu rrently serves on numerous n at i onal and i nternat i onal commi ttees i nc l udi ng the U . S . Commi ttee on Sei smol ogy .

C . Pat ri ck E rvi n i s P rofes sor of Geophysi cs at Northern I l l i noi s Un i ve rsi ty . He has ca rri ed out and i nterp ret ed many of the maj o r gravi ty su rveys i n the M i dcont i nent . Al ong wi th D r . McGi nn i s , he was the fi rst to recogni ze the geophy s i cal s i gnatu re of the Reel foot R i ft associ ated wi t h the Mi s s i ss i pp i Embayment and the New Mad ri d R i ft Comp l ex .

G . Randy Kel l e r i s P rofes sor of Geophys i cs at the Uni vers i ty of Texas , E l Pas o . He i s a recogni zed authori ty on both c rustal sei smi c studi es and pot ent i al - f i el d dat a . He has supervi sed and conducted geophys i ca l su rveys on a worl d-wi de bas i s and i s noted for h i s p i oneeri ng geophys i cal and tecton i c studi es i n the eastern mi dcont i nent .

E . G . L i di ak i s Profes sor of Geol ogy at the Uni vers i ty of P i tt s bu rgh . Dr . L i d i ak has been act i vely i nvol ved i n mapp i ng and i nterp ret i ng the basement rock s of the mi dconti nent for 30 yea rs . He has wri tten exten s i vely on t h i s subj ect and was a p ri nci pal i nvest i gator on the NRG New Mad ri d Sei smo-Tectoni c P rogram . Hi s i nterests cove r the pet rol ogy and i sotop i c age dat i ng of the basement rocks of the mi dcont i nent and the geol ogi c s i gn i fi cance of potent i a l ­fi e l d dat a .

W .John Nel son i s Associ ate Geol ogi st w i t h the I l l i noi s State Geo l og i cal Su rvey . I n recent yea rs h i s efforts have been devoted to ext ens i ve su rfa ce and subsu rface mappi ng of the southern I l l i noi s Bas i n . He has wri tten extens i ve ly on the Rough Creek G ra ben and t he associ ated fau l t i ng st ru ctu re and tecton i cs and served as an i nvest i gat or on the U . S . Nuc l ea r Regu l atory Comi ss i on ' s New Mad ri d Se i smo-Tect on i c Study .

W . Dal Sta n l ey i s Chi ef of Sha l l ow C rustal Geophys i cs Sect i on , Bra nch of Geophysi cs , U . S . Geol og i cal Su rvey . H i s maj or resea rch i nte rests are el ect romagnet i c and sei smi c expl o rat i on methods , crustal conduct i v i ty st ructu res and regi onal tectoni cs . He has publ i shed extensi vely on the appl i cat i on of the magnetotel l u ri c to crustal geol ogi c probl �ms .

John L . Sexton i s P rofessor of Geophysi cs at Southe rn I l l i no i s Un i vers i ty . H e has extensi ve sei smi c exp l orat i on experi ence both i n academi a and the pet rol eum exp l o rat i on i ndust ry . H i s res earch has i n vol ved both convent i onal and h i gh-resol u t i on sei smi c exp l o rati on w ith i n va ri ou s el ements of t he New Mad r id R i ft Compl ex .

These bri ef rev i ews o f t h e seni or person nel o f t h e p roj ect are supp l e­mented by attached v i t a .

66

REFERENCES

Aust i n , C . B . , and G. R. Kel l er , 1982 , A c rustal st ructu re study of the Northern Mi s s i s s i pp i embayment : I n F . A • . McKeown and L . C . Pak i ser [eds . ] , I nvest i gati ons of the New Mad ri d ,-r;fi ssou r i , E a rthquake Reg i on : U . S . Geol ogi cal Su rvey P rofess i onal Pape r 1236 , p . 83-93 .

Bal l y , A . W . , 1980 , Bas i ns and subsi dence - A summa ry : i n A . W . Bal l y , P . L . Bender , T . R . McGetch i n , and R . I . Wal cott [eds . ] , Dyn ami cs of P l ate I nt e ri ors : Ame ri can Geophy s i cal Un i on Geodynami c Seri es 1 , p. 5-20 .

Bal ly , A . W . , and S . Snel son , 1980 , Rea l ms of subs i dence : i n A . D . Mi a l l , Facts and p ri nci pl es of worl d pet rol eum occu rence : CanadTan Soci ety of Pet rol eum Geol ogi sts Memoi r 6 , p. 9-94 .

Baxt e r , J . W . , P . E . Potte r, and F . L . Doyl e , 1963 , A real geol ogy of the I l l i noi s Fl uorspar D i str i ct : Pa rt 1 , Sal i ne Mi nes , Cave- i n-Rock , De Koven , and Repton Quad rang l es : I l l i no i s Geol ogi cal Su rvey C i rcu l a r 342 , 43p .

Baxt e r , J . W . , and G . A . Desborough , 1965 , Areal geol ogy of the I l l i noi s F l uorspar D i st ri ct . Pa rt 2 - Ka rpe rs R i dge and Rosi c l a re Quad rangles : I l l i noi s Geol ogi cal Su rvey C i rcul a r 385 , 40 p .

Baxt e r , J . W . , G . A . Desborough , and C . W . Shaw , 1967 , A real geol ogy of the I l l i noi s F l uorspar Di str i ct . Part 3 - Herod and Shet l e rvi l l e Quadrang l es : I l l i noi s Geol ogi cal Su rvey C i rcu l ar 413 , 41 p .

Bi ck ford , M . E . , W . R . Van Schmus , and I s i dore Z i etz , 1986 , P roterozoi c h i story of t he midcont i nent reg i on of North Ameri ca : Geol ogy , v . 14 , n o . 6 , p . 492-496 .

Bi kerman , Mi ch ael , E . G . Li d i ak , and R . Lewi s , 1982 , K-Ar ages of phl ogop i t e from mi ca pe ri dot i t e , Omaha oi l f i e l d i nt rus i on , Ga l l at i n County , southern I l l i no i s : Geol ogi cal Soci ety of Ameri ca Abst racts wi t h P rog rams , v . 14 , no . 5 , p . 255 .

B rai l e , L . W . , W . J . H i nze , G . R . Kel l e r , and E . G . Li d i ak , 1982a , The northeaste rn extensi on of t he New Mad r i d Sei smi c Z one : i n F . A . McKeown and L • . c . Pak i ser [eds . ] , I n vest i gat i ons of the New Madri d , Mi s sou ri , Ea rthquake Reg i on : U . S . Geol ogi cal Su rvey P rofess i onal Paper 1236 , p . 1 7 5-184 .

Brai l e , L . W . , G . R . Kel l er , W . J . Hi nze , and E . G . Li d i ak , 1982b , An a nc i ent ri ft comp l ex and i ts rel at i on to contempora ry sei smi c i ty i n the New Mad r i d Sei smi c Zone : Tecton i cs , v . 1 , p . 225-237 .

B rai l e , L . W . , W . J . H i nze , J . L . Sexton , G . R . Kel l e r , and E . G . L i d i a k , 1982c , Sei smi ci ty and tecton i cs o f the mi dcont i nent Uni ted States : Proceed i ngs Thi rd I nternat i onal E a rthquake Mi crozonat i on Conference , Seatt l e , Wash i ngton , J u ne 28-J u ly 1 , p . 25-38 .

Brai l e , L . W . , W . J . H i nze , J . L . Sexton , G . R . Ke l l er , and E . G . L i d i ak , 1986 , Tecton i cs devel opment of the New Mad ri d Sei smi c Zone : Tectonophys i cs , i n p res s .

67

Buschba ch , T . C . , 1986 , New Mad r i d sei smotect oni c p rogram-f i na l report : U. S . Nucl ea r Regu l atory Comm i ss i on NUREC/CR-4632 , 6 1 p .

Cordel l , L . , 1977 , Regi on a l pos i t i ve gravi ty anomaly ove r the Mi ss i ss i pp i Embayment : Ame ri can Geophy s i cal Un i on Geophysi cal Resea rch Letters , v . 4 , no . 7 , p . 285-287 .

OeR i t o , R . F . , F . A . Cozz a rel l i , and D . S . Hodge , 1983 , Mechani sm of subs i dence of anci ent c raton i c ri ft basi ns : Tectonophys i cs , v. 94 , p . 141-168 .

E rvi n , C . P . , and L . D . McGi nn i s , 1975 , Ree l foot ri ft : react i vated p recu rsor to the M i ss i ss i ppi Embayment : Geo l ogi cal Soci ety of Ame ri ca Bul l et i n , v . 86 , p . 1287-1295 .

G i nzbu rg , A . , W . D . Mooney , A . D . Wal te r , W . J . Lutte r , and J . H . Hea -ly , 1983 , Deep st ructu re of the n o rthe rn M i ss i s s i ppi Embayment : Ameri can Ass oci at i on of Pet rol eum Geol ogi sts Bu l l et i n , v . 67 , p . 2031-2046 .

Gori , P . L . , and W. W. Hays , [ ed . ] , 1984 , P roceed i ngs of the sympos i um on the " New Mad r i d Sei smi c Zone " : U . S . Geol ogi ca ·1 Su rvey Open F i l e Report 84- 7 7 4 , 468 p .

Hami l ton , R . M . , and D . Zoback , 1982 , Tecton i c featu re o f the New Mad ri d sei sm i c zone from sei smi c refl ect i on profi l es : i n F . A . McKeown a nd L . C . Pak i ser [eds . ] , I n vesti g at i on s of the New Mad ri d�Mi s s ou ri , Earthq uake Regi on : U . S . Geol ogi cal Su rvey P rofess i onal P aper 1236 , p. 55-82 .

Hat l ey , J . B . , and J . F . Devi k o , 1974 , Sei smotecton i c map of the eastern U n i ted States : U . S . Geol ogi cal Survey Map MF-620 .

Herrmann , R . B . , and J . A . Canas , 1978 , Focal mechani sms studi es i n the New Madri d Sei smi c Zone : Bu l l et i n of the Sei smol ogi cal Soci ety of Ameri ca , v . 68 , p . 1905- 1 102 .

Hey l , A . V . , J r . , 1972 , The 38th Pa ral l e l L i neament and i ts rel at i onshi p to ore depos i ts : Econom i c Geol ogy , v. 67 , p. 879-894 .

H i l den b rand , T . G . , M . F . Kane , and W. Staude r , 1977 , Magneti c and gravi ty anoma l i es i n the northe rn M i s s i ss i ppi embayment and thei r spat i al re l ati on to sei smi c i ty : Map MF-914 , scal e 1 : 1 , 000 , 000 . U . S . Geol ogi cal Survey M i scel l aneous F i e l d Studi es .

H i l denbrand , T . G . , M . F . Kane , and J . D . Hendri ck s , 1982 , Magnet i c basement i n the u pper Mi ss i s s i ppi embayment regi on - A p re l i mi na ry repo rt , i n F . A . McKeown and L . C . Pak i s e r [eds . ] , I nvesti gati ons o f the New Madri d-,­M i s souri , E a rthquake Reg i on : U . S . Geol ogi cal Su rvey P rofes s i onal Paper 1236 , p. 39-54 .

Hi l denbra nd , T . G . , and G . R . Kel l e r , 1983 , Magnet i c and gravi ty featu res of weste rn Kentucky : thei r geol ogi c s i gn i fi cance : U . S . Geo l ogi cal Survey Open F i l e Report 83-164 , 12 p .

H i nze, W . J . , L . W . Brai l e , G . R . Kel l er , and E . G . L i d i ak , 1980 , Model s for mi dcont i nent tectoni sm : i n B. C. Bu rchfi e l , J . E. O l i ver and L. T. S i l ver [eds . ] , Cont i nenta l Tecton i cs : Nat i ona l Academy of Sci ences , Washi n gton , D .C . , p . 7 3-83 .

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Hi nze , W . J . , L . W . B rai l e , G . R . Kel l e r , and E . G . Li di ak , 1983 , Geop hy s i cal ­geol ogi cal studi es of poss i b l e extens i ons of t he New Mad r id Fau l t Zone , New Mad ri d Sei smotectoni c Study-Act i v i t i es du ri n y F i sca l Yea r 1983 : U . S . Nuc l ea r Regu l ato ry Commi ss i on NUREG/CR-4226 .

Hi nze , W . J . , L . W . Brai l e , G . R . Kel l er , and E . G . Li d i a k , 1986 , Model s for mi dcont i nent tectoni sm : An updat e . ( I n p repa rat i on ) .

Hook , J . W . , 1974 , St ructu re of the fau l t systems i n the I l l i noi s-Kentucky f l uorspar d i st ri ct : i n Hutcheson , D . W . [ ed . ] , A sympos i um on the geol ogy of fl uorspa r : Kentucl<Y Geol oyi cal Su rvey Seri es X , Spec i a l Pub l i cat i on 22 , p . 7 7-86 .

Johnson , R . W . , J r . , C . Haygood , T . G . Hi l denb rand , W . J . Hi nze , and P . M . Kunsel man , 1980 , Aeromagnet i c map of the east-cent ra l mi dconti nent o f t he Uni ted States : U . S . Nuc l ea r Regu l atory Commi s s i on NUREG/CR- 166 2 , 12 p .

Jones , P . B . , and J . L . Sexton , 1982 , Evi dence from sei smi c refl ecti on data and sy nthet i c sei smoy ram model stud i es for recu rrent fau l t i ng i n the New Mad ri d a rea : Geol ogi cal Soci ety of Ame ri ca Abst racts wi th P rog rams , v . 14 , no. 5 , p . 263 .

Jones , P . B . , 1982 , Ev i dence f rom h i gh resol ut i on sei smi c dat a for rec u r rent fau l t i ng i n t he New Madr i d Sei smi c Z one : M . S . th�s i s , Pu rdue Un i vers i ty , W. Lafayette , I N .

Kane , M . F . , 1977 , Co rre l at i on of maj or eastern ea rt hquake epi centers w i t h mafi c/ u l t ramafi c basement mass es : U . S . Geol ogi cal Su rvey P rofes s i onal P aper 1028-0 , p. 199-204 .

Kane , M . F . , T . G . Hi l denbra nd , and J . D . Hendri ck s , 1981 , A model for the tectoni c evol uti on of the M i s s i ss i ppi Embayment and i ts contempo ra ry sei smi ci ty : Geol ogy , v . 9 , p . 563-567 .

Kel l e r , G . R . , D . R . Russel l , W . J . H i nze , J . E . Reed , a nd P . J . Gerac i , 1980 , Bouguer gravi ty- anoma ly map of the east-cent ral mi dcont i nent of the Uni ted St ates : U . S . Nucl ear Regu l ato ry Commi ss i on NUREG/CR- 1663 , 12 p .

Kel l e r , G . R . , E . G . L i d i ak , W . J . Hi nze , and L . W . B ra i l e , 1 983 , The ro l e of ri ft i ng i n the tecton i c devel opment of the mi dcont i nent , U . S . A . : Tectonophy s i cs , v . 94 , p . 391-41 2 .

Kerst i ng , J . J . , 1982 , The pet rol ogy and pet rography of the Mt . S i mon and p re­Mt . S i mon sandstones ; evi dence for pos s i b l e P recambri an r i ft i ng i n the cent ra l mi dconti nent : M . S . thes i s , Uni vers i ty of P i ttsbu rgh , Pi ttsbu rg h , Pennsyl vani a .

Kl emme , H . D . , 1980 , Pet rol eum bas i ns - c l ass i fi cat i ons and characteri sti cs : Jou rnal of Pet ro l eum Geol ogy , v . 3 , n o . 2 , p . 187-207 .

Ku ri t a , T . , 197 3 , Regi ona l va ri at i ons i n t he struct u re of the crust i n the U n i ted States from P-wave spect ra : Bul l et i n of the Sei smol ogi cal Soci ety of Ameri c a , v . 63 , p . 1663- 1687 .

L i d i ak , E . G . , 1982 , Basement rocks of the mai n i nteri or bas i ns of the Mi dcon­t i nent : i n P . D . P roctor et a l . [ed s . ] , Sel ected s t ru ctu ral basi ns of t he Mi dcont i nent , USA : Un i ve rs i ty of Mi ssou ri -Rol l a Jou rn al , no . 3 ,· p . 5-24 .

69

Long , L . T . , 197 6 , Specu l at i ons conce rni ng s outheastern ea rthquakes , mafi c i nt rus i on , grav i ty anomal i es , and st ress amp l i fi cat i on : Earthquake Notes , v . 47 , p . 29-35 .

Mccamy , K . , and R . P . Meyer , 1966 , Crustal res u l t s of fi xed mul t i p l e shots i n the Mi s s i s s i ppi Embayment : i n J . S . Stei nhart and l. J . Smi th [ ed s . ] , The E a rth Beneath the Cont i nents:- Geophys i ca l Monog raph , Ame ri can Geophysi cal U n i o n , v. 10 , p. 370-381 .

McKeown , F . A . , 1978 , Hypothes i s - Many eart hquakes i n the cent ral and s outheaste rn Un i ted States a re causal ly rel ated to maf i c i nt ru s i ve bod i e s : U . S . Geol ogi cal Su rvey Jou rnal o f Resea rch , v . 6 , p . 41-50 .

McKeown , F . A . , and L . C . Pak i sar [ eds . ] , 1982 , I nvest i gati ons of the New Mad ri d , Mi ssou ri , ea rthquake reg i o n : U . S . Geol ogi cal Su rvey P rofes s i onal Paper 1236 , 201 p .

McKeown , F . , 1984 , New Madr i d Sei smi � Zone : Pa rt 1 : H i s tor i cal Rev i ew of Studi es and P a rt I I : Contempora ry Studi es by the U . S . Geol ogi cal Su rvey : i n P . L . Gori and W . W . Hay s [eds . ] , P roceedi ngs of the Sympos i um on 11The New Mad r id Se i sm i c Zone 11 : U . S . Geol ogi cal Su rvey Open F i l e Report 84-770 .

M i t chel l , B . J . , and B . M . Has hi m , 1977 , Sei smi c vel oci ty determi nat i ons i n the New Mad r id sei smi c zone : A new met hod u s i ng l ocal ea rthquakes : Bul l et i n of the Sei smol ogi cal Soci ety of Ameri ca , v . 67 , p . 413-424 .

Mooney , W . D . , M . C . And rews , A . G i nzbu rg , D . A . Peters , and R . M . Hami l ton , 1983 , Cru stal st ructu re of the Northern Mi s s i s s i pp i Embayment and a compari s on wi th other cont i nental ri ft zones : Tectonophysi c s , v . 94 , p . 327-348 .

Nel son , W . J . , and H . - F . Krausse , 1981 , The Cottage Grove Fau l t System i n southern I l l i noi s : I l l i noi s State Geol ogi cal Su rvey C i rc . 522 , 65 p .

Nel son , W . J . , and D . K . Lumm , 1984 , St ructu ral geol ogy of southeastern I l l i no i s and v i c i n i ty : I l l i noi s State Geol ogi cal Su rvey Cont ract/G rant Report 1984- 2 , 127 p .

Nel son , W . J . , and D . K . Lumm , 1986a , Geol ogi c map of the Shawneetown Quadrang l e , Gal l ati n County , I l l i noi s : I l l i no i s State Geol ogi cal S u rvey Geol ogi cal Quadrangl e Map I GQ- 1 .

Nel son , W . J . , and D . K . Lumm , 1986b , Geol og i c map of the Equal i ty Quad rangl e , Gal l at i n and Sal i ne Count i es , I l l i noi s : I l l i no i s State Geol ogi cal Su rvey Geol ogi cal Quadrang l e Map I GQ-2 .

Nel son , W . J . , and D . K . Lumm , 1986c , Geol og i c map of the Rudi ment Quad rangl e , Sal i ne County , I l l i noi s : I l l i noi s State Geol ogi cal S u rvey Geol ogi cal Quad rangl e Map I GQ- 3 .

Nutt l i , O . W . , 1973 , The Mi s s i s s i pp i Val l ey ea rt hq uakes o f 181 1 and 1812 -I ntens i t i es , g round mot i on , a nd magni tudes : Bul l et i n of t he Sei smol ogi cal Soci ety of Ame ri ca , v . 63 , p. 227-248 .

70

Nutt l i , O . W . , 1979 , Sei smi c i ty i n the Cent ral Un i ted States : i n Geol ogy i n the s i t i ng of nucl ear power p l ants : Geol ogi cal Soci ety of Ameri ca Revi ews i n Engi nee ri ng Geol ogy , v . 4 , p . 67-93 .

Nutt l i , O . W . , 1982 , Damag i ng earthquakes of the cent ral M i s s i ss i ppi Val l ey : i n F . A . McKeown and L . C . Pak i se r [eds . ] , I nvest i gat i ons of the New Mad ri d ,

Mls sou ri , E a rthquake Regi on : U . S . Geol ogi cal Su rvey P rofes s i onal Paper 1236 , p . 15-20 .

Ocal a , L . D . , and R . P . Meye r , 1973 , Cent ral No rth Ame ri can R i ft System : 1 . Structu re of the Axi al Zone from Sei smi c and Grav imet r i c Data : J ou rnal of Geophysi cal Resea rch , v. 78 , p . 5173- 5194 .

Qu i n l an , G . M . , and C . Beaumont , 1984 , Appa l achi an thru st i ng , l i thosphe ri c fl exu re and the Pal eozoi c st rat i g raphy of the eastern i nteri or of No rth Ameri ca : Canadi an Jou rnal of Earth Sci ence , v. 2 1 , p. 9 73-996 .

Ravat , D . N . , 1984 , Magnet i c i n vesti gat i ons i n the St . Lou i s Arm of the New Mad ri d R i ft Comp l ex : Unpub . M . S . thes i s , Pu rdue Un i vers i ty , W. Lafayette , I N , 102 p .

Sba r , M . L . , and L . R . Sykes , 1973 , Contempora ry comp ress i ve s t ress and sei smi c i ty i n eastern North Ame ri ca : An examp l e of i nt rapl ate tectoni cs : Geol ogi cal Soc i ety of Ameri ca Bul l et i n , v . 84 , p . 186 1 - 1 882 .

Schwa l b , H . R . , 1982 , Pa l eozoi c geol ogy of the New Madri d a rea : U . S . Nucl ear Regu l ato ry Commi s s i on NUREG/ CR-2909 , 6 1 p .

Sexton , J . L . , and P . B . Jones , 1981 , H i gh resol ut i on sei smi c refl ecti on s u rvey i ng on Reel foot Sca rp ( abst ract ) : Geol ogi cal Soc i ety of Ameri ca Abst racts wi th P rograms , v. 13 , no. , p .

Sexton , J . L . , E . P . Frey , and D . Mal i ck i , 1982 , H i gh- resol uti on sei smi c­refl ect i on su rveyi ng on Reel foot scarp , northwestern Tennessee : i n F. A . McKeown and L . C . Pak i ser [eds . ] , I nvest i gat i ons of the New Mad ri"d'; Mi ssou ri , E a rthquake Regi on : U . S . Geol ogi cal Su rvey P rofes s i onal Paper 1236 , p . 137-1 50 .

Sexton , J . L . , L . W . Brai l e , W . J . Hi nze , and M . J . Campbel l , 1986 , Sei smi c refl ect i ons p rofi l i ng stud i es of a buri ed P recambri an r i ft beneath the. Wabash Val l ey Fau l t Zone : Geophys i cs , v . 5 1 , no . 3 , p . 640-660 .

S l eep , N . H . , J . A . Nun n , and Lei Chou , 1980 , P l atfo rm bas i n s : Annual Revi ew of Ea rth and P l aneta ry Sci ences , v . 8 , p . 1 7-34 .

Sl oss , L . L . , 1986 , The Mi dcont i nent P rovi nce : U n i ted States : Decade of North Ame ri can Geol ogy , Geol ogi cal Soci ety of Ameri ca , p . 27-39 .

Soderbe rg , R . K . , and G . R . Kel l e r , 1981 , Geophysi cal evi dence for deep bas i n i n western Kentucky : Ameri can Associ at i on of Pet rol eum Geol ogi sts Bu l l et i n , v . 65 , p . 226-234 .

.

St . John , Bi l l , A . W . Bal ly , and H . D . Kl emme , 1984 , Sedi ment a ry p rovi nces of the worl d - hydroca rbon p roduct i ve and nonp rodu ct i ve : Ameri can Ass oc i at i on of Pet rol eum Geol ogi sts , Tul s a , Okl ahoma .

7 1

Staude r , Wi l l i am , 1982 , Present-day sei smi c i ty and i dent i fi cati on o f act i ve fau l ts i n the New Mad r id sei smi c zon e , i n F . A . McKeown and L . C . Pak i se r [eds . ] , I nvest i gat i ons o f the New Mad rid, Mi s s ou ri , Ea rthquake Regi on : U . S . Geol ogi cal Survey P rofess i onal Paper 1236 , p . 2 1-30 .

Stauder , Wi l l i am , M . Krame r , G . Fi s cher , S . Schaefe r and s . T . Mo rri s s ey , 1 976 , Sei smi c characteri sti cs of southeast M i s sou ri as i nd i cated by a regi onal tel emetered mi c roea rthquake a rray : Bul l et i n of the Sei smol ogi cal Soc i ety of Ameri c a , v. 66 , p. 1953-1964 .

Syk es , L . R . , 1978 , I nt rapl ate sei smi c i ty , react i vat i on o f p reexi st i ng zones of weak nes s , a l ka l i ne magmat i sm , and other tectoni sm postdat i ng conti nental fragmentat i on : Geophy s i cs and Space Phys i cs Rev i ew , v. 16 , p . 621-688 .

T race , R . D . , 1974 , I l l i noi s-Kentucky fl u orspar d i st ri ct : i n Hutcheson , D . W . , [ed . ] , A sympos i um o n the geol ogy of fl uorspa r : Kentucky Geol ogi cal Survey Seri es X , Speci al Publ i cat i on 22, p. 58-76 .

T race , R . D . , and D . H . Amos , 1984 , St rati graphy and st ructu re of the Western Kent ucky F l u o rspar D i st ri ct : U . S . Geol ogi cal Survey P rofes s i onal Paper 1 15 1-0 , 41 p .

Z a rtma n , R . E . , M . R . Brock , A . V . Heyl , and H . H . Thomas , 1967 , K-Ar and Rb­Sr ages of some al kal i c i nt ru s i ve rocks from cent ral and eastern Un i ted States : Ameri can Jou rnal of Sci ence , v . 265 , p . 848-870 .

Zoback , M . D . , R . M . Hami l ton , A . J . C rone , D . P . Rus s , F . A . McKeown , and S . R . Brockma n , 1980 , Recu r rent i nt rapl ate tecton i sm i n the New Mad ri d Sei smi c Zone : Sci ence , v . 209 , p . 971-976 .

Zoback , M . L. , and M . D . Zoback , 1981 , State of stress in the contermi nous Un i ted States : Sci ence, v. 2 1 3 , p. 96- 104 .

72

BUDGET EXPLANATION

The fol l owi ng two and one-hal f year budget i s keyed to the si te def i n i t i on Schedul e of Acti v i ti es, ta bl e I V .

The Board of Trustees of the Uni versi ty of I l l i no is at Urbana-Cham pa i gn wi l l be pri me contractor for the si te defi n i ti on· research on beha l f of the I l l i no is State Geol ogical Survey . The Uni versi ty ' s Grants and Contracts adm i n i strati on wi l l have pri nci pa l responsi bi l i ty for busi ness affa i rs for the proj ect . The I l l i no is State Geol og ica l Survey wi l l function as techn i cal manager assuri n g that al l techn i cal reports are prepared and del i vered as requ i red .

Spec if ic research proj ects such as the refl ect ion and refracti on sei sm i c, gravi ty, magnetic and magnetotel l ur ic stud i es w i l l be handl ed as su bcontracts to Argonne Nati onal Laboratory, Purdue Un i versi ty, Northern I l l i no is Uni versi ty, Southern I l l i no i s Uni versi ty, Uni versi ty of Pi ttsburgh, the Uni versi ty of Texas-El Paso and the Un i ted States Geol ogi cal Survey .

The proposed management p l an, Fi gure 25, provi des a si ng l e poi nt of contact for both fi nanc i a l and techn ical admi n i stration . Under Federal accoun ti n g procedures most of the costs of the research su bcontracts are excl uded from the base for i nd i rect cost recovery, thus the u n i fi ed proj e·ct management system i ntroduces smal l add i ti onal cost, i . e . 4 percent o-f the tota l cost .

The fol l owi n g Budget Summari es l i st annual deta i l ed costs for techn i ca l project admi n i strati on by t h e I l l i no i s State Geol og ical Survey, the S i te Defi n i t i on Steeri n g Group and the S i te Defi n i t i on Adv i sory Panel and total costs of research su bcontracts and associ ated i nd i rect costs . Total s l i sted for each subcontractor i ncl ude i nsti tuti onal i nd i rect costs .

The deta i l ed budgets fol l owi n g the annual budget summari es l i st the tas ks to be performed by each subcontractor .

The si te sel ect i on program i s expected to requ i re a bout 2 1/2 years and to cost approxi matel y $3. 8 m i l l i on . Costs are prel im i nary and subject to further negoti ati on i n part because geophys i ca l contract pri ces can not be hel d to cost estimates if the economi cs of the o i l and gas i ndustry i mprove and because determ i nati on of i nd i rect costs is dependent u pon the source of funds and the timi ng of appropri ati ons .

72 a

BUDGET - SITE DEFI NITION - ILL I NOIS BASI N ULTRADEEP DRILLHOLE

I BUD P roj ect Admi n i st rat i on - I SGS

Personnel Admi n i strat i ve Ass i stant Cl eri cal ass i stance

Benefi ts @ 14 .625% TOTAL SALAR I ES , WAGES & BENEF I TS

Operat i ng Costs Travel Materi a l s & Suppl i es Servi ces

Tel ecommun i cat i ons Tempora ry workers P reparat i on of report s

Year 1

Qual i ty Cont rol Consul tant Fees -St i pends for Workshop Non-Empl oyee Travel :

Si te Defi n i t i on Steeri ng G roup S i te Defi n i t i on Adv i sory Panel

TOTAL OPERAT I NG COSTS

Resea rch D i rected by I SGS - Hei gol d , Nel son

Resea rch Subcont ract i ng Costs P u rdue Un i vers i ty - Hi nze P u rdue Un i vers i ty - B rai l e S IU - Sexton UTEP - Kel l er N I U - Ervi n USGS - St an l ey USGS - Hi l denbrand u . P i ttsburg - L i d i ak Argonne Laboratory - McGi n n i s R i ce Un i ve rs i ty - Vai l

TOTAL RESEARCH SUBCONTRACT COSTS

TOTAL D I RECT COSTS

Modi fi ed Total D i rect Costs I nd i rect Costs @ 49% of MTDC

TOTAL COSTS

$ 27 ,000 20 ,000

6 ,900

5 ,000 3 ,500

4 ,000 2 ,000 3 ,000

25 ,000 0

7 , 500 17 ,000

30 ,000 340 ,000 948 ,000

75 ,000 85 ,500

125 ,000 75 ,000 35 ,000 30 ,000 26 ,000

427 ,900

$ 53 ,900

67 ,000

57 ,000

1 ,769 , 500

1 ,947 , 400

209 ,700

$2 , 157 , 100

73

BUDGET - SITE DEFINITION - ILLINOIS BASIN ULTRADEEP DRILLHOLE

I BUD PROJ ECT ADMI N I STRAT I ON - I SGS

Personnel Admi n i st rat i ve Ass i stant C l e ri cal assi stance

Benefi ts @ 14 .6253 TOTAL SALAR I E S , WAGES & BENEFITS

Operat i n g Costs Travel Materi a l s & Suppl i es Servi ces

Tel ecommuni cati ons Temporary workers P reparat i on of Reports

Year 2

Qual i ty Cont rol Consu l tant Fees St i pends for Workshop Non-Empl oyee T ravel

Si te Defi n i t i on Steeri n g G roup S i te Defi n i t i on Advi so ry P anel

TOTAL OPERAT I NG COSTS

Research D i rected by I SGS - Hei gol d , Nel son

Resea rch Subcont ract i ng Costs P u rdue Uni vers i ty - Hi n ze P u rdue Un i vers i ty - Brai l e S I U - Sexton UTEP - Kel l er N I U - Erv i n USGS - Stanl ey USGS - Hi l denbrand u . P i ttsburgh - L i di ak Argonne Laboratory - McGi nn i s R i ce Un i vers i ty - Vai l

TOTAL RESEARCH SUBCONTRACT COSTS

TOTAL D I RECT COSTS

Mod i fi ed Total D i rect Costs I nd i rect Costs @ 49% of MTDC

TOTAL COSTS

$30 , 250 22 ,400

7 ,700

7 ,000 6 ,500

5 ,000 2 ,000 7 ,000

17 ,000 0

10 ,000 20 ,000

33 ,000 75 ,000

465 ,000 75 ,000 40 ,250 50 ,000

100 ,000 20 ,000 52 ,500 26 ,000

195 ,350

$ 60 ,350

74 , 500

60 ,500

936 , 7 50

1 ,132 , 100

95 ,750

$1 ,227 ,850

74

BUDGET - SITE DEFINITION - ILLINOIS BASIN ULTRADEEP DRILLHOLE

I BUD PROJE CT ADMIN I STRAT I ON - I SGS

Personnel Admi n i strat i ve Ass i stant Conference Admi n i st rator Cl e ri cal assi stance

Benef its @ 14 .625% TOTAL SALAR I ES , WAGES & BENEF ITS

Operat i ng Costs Travel Mate ri a l s & Suppl i es Servi ces

Tel ecommu n i cat i ons Temporary workers P reparat i on of Reports

Year 3

Qual i ty Cont rol Cons u l tant F ees Sti pends for Workshop Non-Empl oyee Travel :

Si te Defi n i t i on Stee ri ng G roup S i te Defi n i t i on Advi sory Panel

TOTAL OPERAT I NG COSTS

Research D i rected by I SGS - Hei gol d , Nel son

Research Subcontract i ng Costs P u rdue Uni vers i ty - H i nze Purdue Uni vers i ty - Brai l e S IU - Sexton

. UTEP - Ke 1 1 er N IU - E rv i n USGS - Stanl ey USGS - Hi l denbrand U . P i ttsburgh - L i di ak Argonne Laboratory - McGi n n i s R i ce Uni vers i ty - Vai l

TOTAL RESEARCH SUBCONTRACT COSTS

TOTAL D IRECT COSTS

Mod i f i ed Total D i rect Costs I ndi rect Costs @ 493 of MTDC

.,;:. �TOTAL COSTS

$33 ,900 2 , 000

25 , 100 8 ,950

5 ,000 7 ,000

5 ,500 2 ,500 8 ,000 2 ,000

20 ,000

8 ,000 10 ,000

17 ,000 35 ,000 35 ,000 35 ,000 35 ,000

0 0 0

15 ,000 13 ,000

168 ,450

$ 69 ,950

68 ,000

30 , 500

185 , 000

353 ,450

82 ,550

$436 , 000

75

BUDGET - SITE DEFI NITION - ILL I NOIS BASI N ULTRADEEP DRILLHOLE

SUMMARY

Yea r 1 Yea r 2 Yea r 3 TOTALS

Total Sal a ri es , Wages & Benefits 53 ,900 60 , 350 69 ,950 184 ,200

Total Operat i ng Costs 67 ,000 74 ,500 68 ,000 209 ,500

Resea rch O i rected by I SGS 57 ,000 60 , 500 30 ,500 148 , 000

Total Resea rch Subcont ract Costs 1 ,769 ,500 936 ,750 185 ,000 2 ,891 ,250

TOTAL D I RECT COSTS 1 ,947 ,400 1 , 132 ,100 353 ,450 3 ,432 ,950

I nd i rect Costs � 49% of MTDC 209 , 700 95 ,750 82 ,550 388 ,000

TOTAL COSTS $2 , 157 ,100 $1 ,227 ,850 $436 ,000 $3 ,820 ,950

76

BUDGET DETAIL

Research Di rected by I SGS ( Hei gol d and Nel son ) Year 1

Deta i l ed pl ann i ng for fi e l d ope rat i ons , data process i ng , model i ng , and i nterp retat i on

Regi onal a real gravi ty and g round magnet i c su rveys of Hub s i te and peri phery

Reg i onal grav i ty and grou nd magnet i c su rveys al ong regi onal se i sm i c refl ecti on profi l es

I nput and i ntegrat i on of regi onal st rat i graph i c and st ructu ral mappi n g , wel l l ogs and core and cutti ngs data

TOTAL D I RECT COSTS I ndi rect Costs at 49% of MTDC

Year 2

Det ai l ed p l ann i ng for fi el d operat i ons , data p rocess i ng , model i ng , and i nt e rp retat i on Local i zed areal grav i ty , and g round mag neti c su rveys of sma l l area wi th i n Hub s i t e .

Local i zed gra v i ty and ground magnet i c su rveys al ong detai l ed sei smi c refl ect i on profi l es

I nput and i nteg rat i on of regi onal st rati graph i c and st ructu ral mappi ng , wel l l ogs and core and cutti ngs data

TOTAL D I RECT COSTS I ndi rect Costs at 49% of MTDC

Yea r 3

I nteg rat i on of potent i al fi e l d d ata wi th other geophys i cal studi es to obtai n cons i stent , compat i b l e i nterp retat i ons among a l l geophys i cal d i s ci p l i nes

I ntegrat i on of reg i onal st rat i g raphi c and st ru ct u ra l mappi ng , wel l l ogs a nd core and cutt i ng data wi th geophysi cal data

TOTAL D I RECT COSTS I ndi rect Costs at 49% of MTDC

$57 ,000

$57 , 000 $ 28 ,000

$60 , 500 $29 ,600

$ 30 , 500 $ 1 5 , 000

77

Resea rch and Admi n i strat i ve Subcont ract to Pu rdue ( Hi nze) Yea r 1

Chai rman of Steer i ng Commi ttee ; Supervi s i on of rel ated funct i ons of

s i te sel ect i on s ci ent i sts , i nt e rp retat i on of potent i a l f i el d data

I ndi rect costs to U I UC

Yea r 2

Chai rman of Steeri ng Commi ttee ; Supervi s i on of rel ated funct i ons of si te

sel ect i on s ci ent i st s , i nterp retati on of potent i a l fi el d data

Year 3

Chai rman of Steeri ng Commi ttee ; Supervi s i on of rel ated funct i ons of s i te

select i on sci ent i st s , i nt e rp retat i on of potent i al fi el d data

Resea rch Subcont ract to Pu rdue ( B rai l e) Yea r 1

C rustal Refract i on Data Data Recordi ng Subcont ract Wi de-angl e refl ect i on

Deep Refl ect i on Data Data Acqu i s i t i on Subcont ract Data P rocess i ng Subcont ract

Un i vers i ty Res ea rch Support

TOTAL I ndi rect costs to U I UC

Year 2

P rocess i ng , model l i ng , and i nt e rp retati on of se i sm i c d ata

Research

TOTAL

I ndi rect costs as soci ated wi th subcont racts to sei smi c record i ng compani es and to UTEP and S I U

$30 , 000 $12 , 500

$33 , 000

$17 , 000

$100 ,000 75 ,000

60 ,000 30 ,000

75 ,000

$340 , 000 1 2 , 250

$50 ,000

25 , 000

$75 , 000

78

Yea r 3

I ntegrati on of sei sm i c data wi th other geophys i cal studi es to obtai n cons i stent , compat i bl e i nterp retat i ons among al l geophys i ca l d i s c i p l i nes

TOTAL

Resea rch Subcont ract to S I U ( Sexton )

Regi onal Refl ect i on Data Data acqu i s i t i on subcont ract Data p rocess i ng subcont ract

Uni vers i ty Research Support

TOTAL I ndi rect costs to U I UC

Detai l ed Refl ecti on Data Data acq u i s i t i on subcont ract Data p rocess i ng subcont ract

Uni ve rs i ty Research Support

TOTAL

Yea r 1

Year 2

Year 3

I nteg rat i on of sei smi c data wi th other geop hys i ca l studi es t o obtai n cons i stent , compat i bl e i nterp retat i ons among a l l geophys i cal d i sci p l i nes

TOTAL

Research Subcont ract to UTEP ( Kel l er ) Yea r 1

Detai l ed p l ann i ng fi e l d operat i ons , process i ng , model l i ng , and i nterp retat i on of sei smi c data

TOTAL I nd i rect costs to U I UC

$35 ,000

$612 ,000 261 ,000

75 ,000

$948 , 000 $12 ,250

$264 , 000 126 ,000

7 5 ,000

$46 5 , 000

$35 ,000

$75 , 000 $12 ,250

79

Yea r 2

Detai l ed p l ann i ng for fi e ld operati ons , p rocess i n g , model l i ng , and i nterp retat i on o f sei smi c dat a

TOTAL :

Year 3

I nteg rati on of sei smi c data wi th other geophysi cal stud i es to obtai n cons i stent , compat i bl e i nterp retat i on among a l l geophys i cal d i sc i p l i nes

TOTAL

Research Subcont ract to N IU ( E rvi n ) Yea r 1

Regi onal g rav i ty and g round magnet i c su rvey of the Hub s i te and i ts peri phery

G rav ity and g rou nd magnet i c s u rvey a l ong reg i onal sei smi c al ong reg i onal sei smi c refl ect i on l i nes

P rocess i ng and i nterpretat i on of reg i onal gravi ty and g round magnet i c su rveys

TOTAL I nd i rect Costs to U I UC

Year 2

Local i zed grav i ty & grou nd magnet i c su rvey

P rocess i ng and i nterp ret at i on of l ocal i zed gravi ty and g round magnet i c su rveys

TOTAL

Year 3

I nteg rat i on of potenti al fi e l d data wi th other geophy s i cal data to obtai n cons i stent , compat i b l e i nterp retat i ons among a l l geophys i cal d i sc i p l i nes .

TOTAL

$75 , 000

$35 , 000

$36 ,800

1 7 , 000

31 , 700

$85 , 500 12 ,250

$23 , 000

17 , 250

$40 , 250

$35 , 000

80

Research Subcont ract to USGS ( Stanl ey )

Yea r 1

Magnetotel l u ri c soundi n gs a l ong regi onal sei smi c refl ect i on l i nes ( 250 km ) TOTAL

I ndi rect costs to U I UC

Yea r 2

Magnetotel l u ri c soundi ngs a l ong detai l ed sei smi c refl ect i on l i nes ( 50 k i l ometers ) TOTAL

Resea rch Su bcont ra ct to USGS ( Hi l denb rand ) Year 1

P repa rat i on of bas i c g ra v i ty and magnet i c anoma ly maps and enh anced anomaly and maps

P repa rati on of general i zed depth to c rysta l l i ne basement map

Col l ect i on of t ruck-mou nted ground magneti c dat a

TOTAL I nd i rect cost to U I UC

Year 2

Detai l ed model i ng of pot enti al fi e l d data

I ntegrati on and combi ned i nterp retat i ons of al l geophysi cal dat a

TOTAL :

Resea rch Subcont ract to U . of Pi ttsbu rgh ( Li d i ak ) Yea r 1

Basement geol ogy studi es , i ntegrat i on of mi dconti nent basement data

TOTAL I ndi rect costs to U I UC

$ 125 , 000 $12 , 250

$50 , 000

$ 25 ,000

35 ,000

1 5 ,000

$75 ,000 $12 , 250

$40 ,000

60 ,000

$ 100 ,000

$35 ,000 $ 1 2 , 250

81

Yea r 2

Basement geol ogy studi es i nteg rat i on of mi dcont i nent bas ement data

TOTAL

Research Subcont ract to Argonne Nati onal Lab ( McG i n n i s ) Year 1

P l ann i n g , model i ng , i nterp retati on and i nteg rat i on of ref ract i on and refl ect i on data wi th other geophy s i cal and geol ogi cal i nformat i on

TOTAL I ndi rect costs to U I UC

Yea r 2

Pl ann i n g , model i ng , i nterp retati on and i nteg rat i on of ref ract i on and refl ect i on data wi t h ot her geophys i ca l and geol og i cal i nformati on

TOTAL

Year 3

P l ann i n g , model i ng , i nterpretat i on and i ntegrat i on of refract i on and refl ect i on data wi th other geophy s i cal and geol ogi cal i nformat i on

TOTAL

Research Subcont ract to R i ce Un i ve rs i ty ( Vai l ) Year 1

I nterpretat i on of wel l data and reg i onal and deta i l ed sei smi c refl ecti on data wi th emphas i s on sequence strat i g rap hy i n order to acqui re maxi mum data f rom Hub s i te

TOTAL I ndi rect cost to U I UC

$20 ,000

$30 ,000 $ 12 , 500

$52 , 500

$ 1 5 ,000

$ 26 ,000 $ 1 2 , 500

82

Yea r 2 Inte rp retat i on of wel l data and regi onal and det ai l ed sei smi c refl ecti on data wi t h emp has i s on sequence strat i g raphy in order to acqu i re maxi mum data from Hub s it e

TOTAL

Year 3

I nterpretat i on of wel l data and regi onal and detai l ed sei smi c refl ect i on data wi t h emphasi s on sequence strat i g raphy i n order to acqui re maxi mum data from Hub s i te

TOTAL

$26 ,000

$ 1 3 ,000

83

VI TA

LAWRENCE W. BRAI LE

PERSONAL

P resent Pos i t i on : Professor , Depa rtment of Geosci ences , Pu rdue Uni vers i ty

Offi ce Phone : ( 31 7 ) 494-3259

Offi ce Address : Department of Geosci ences Purdue Uni vers i ty West Lafayette , I N 47907

Home Add ress : 1 509 Woodl and Avenue West Lafayett e , I N 47906

P l ace of B i rth : Seatt l e , Washi ngton

Date of Bi rth : March 21 , 1947

EDUCATI ON

1969 Uni vers i ty of Washi n gton ; BS 1970 Un i vers i ty of Washi ngton ; MS 1973 Un i vers i ty of Utah ; Ph . D .

PROFE SSI ONAL EXPERI ENCE

1969- 1 970 1970-1973 8 & 9/7 1 and 9 & 10/72 1973-1978 1978-1983 1983-Present

Teach i ng As s i stant , Un i vers i ty of Was h i ngton NSF Graduate Trai nee i n Geophysi c s , Un i vers i ty of Utah Graduat e Research Asst . i n Sei smol ogy , Uni vers i ty of Utah

Asst . Professor , Dept . of Geosci ences , Pu rdue Un i vers i ty Assoc . Professor, Dept . of Geosci ences , Pu rdue Un i ve rsi ty Professo r , Depa rtment of Geosci ences , Pu rdue Uni ve rsi ty

AWARDS, HONORS AND APPOI NTMENTS

Nat i onal Sci ence Foundat i on Graduate Trai neeshi p i n Geophysi cs , Un i ver s i ty of Utah , 1970-1973

Co-General Chai rman , Mi dwest Ameri can Geophysi ca l Un i on Meet i ng , 1977 Associ ate Ed i tor , J ou rnal of Geophysi cal Research , 1982-1985 Edi tori a l Advi sory Boa rd , Earthquake Notes , 1982-Present Appoi nted to 3 year term ( 1983- 1986) on the Commi ttee on Sei smol ogy of the

Nat i ona l Resea rch Counci l , Nat i ona l Academy of Sc i ences

PROFESSI ONAL ORGANI ZATIONS

Ame ri can Geophysi cal Un i on Geol ogi cal Soci ety of Ameri ca Sei smol ogi cal Soc i ety of Ameri ca Soci ety of Exp l orat i on Geophysi ci sts

MAJOR RESEARCH I NTERESTS

Crustal sei smi c studi es

84

App l i cat i ons of quant i tat i ve analysi s methods i n geol ogy and geophysi cs Sei smotectoni cs of mi dconti nental North Ame ri ca .

PUBLI CATIONS

Bra i l e , L . W . 1973 . I nversi on of Crusta l Sei smi c Refract i on and Ref l ect i on Dat a . J . Geophy s . Res . , 78 , 7738-7744 .

Brai l e , L . W . , G . R . Kel l e r and W . J . Peep l es . 1974 . I nversi on of Gravi ty Data for Two-Dimensi onal Dens i ty Di st ri but i o n s . J . Geophy s . Res . , 7 9 , 2017-2021 .

Brai l e , L . W . , R . B . Smi th , G . R . Kel l er , R . M . Wel ch and R . P . Meyer . 1974. Crustal St ructure across the Wasatch F ront from Detai l ed Sei smi c Refract i on Studi es . J . Geophys . Res . , 79 , 2669-2677 .

Brai l e , L . W . and R . B . Smi t h . 197 5 . Gui de to the I nterp retati on of Crustal Refract i on Profi l es . Geophy s . J . Roy . Ast r . Soc . , 40 , 145-176 .

B rai l e , L . W . and G . R . Kel l er . 1 97 5 . F i ne St ruct u re of the Crust I nfe rred from Li nea r I nvers i on of Rayl ei gh Wave Di spers i on . Bu l l . Sei sm . Soc . Am . , 6 5 , 7 1-83 .

Kel l e r , G . R . , R . B . Smi th and L . W . Brai l e . 197 5 . Crustal st ruct u re a l ong the Great Basi n - Col orado P l ateau Transi t i on from Sei smi c Refract i on Stud i e s . J . Geophy s . Res . , 80 , 1093-1098 .

Smi th , R . B . , L . W . B rai l e and G . R . Kel l er . 197 5 . Uppe r-crustal Low Ve l oci ty Laye rs : Possi b l e Effect of Hi gh Temperat u res ove r a Mant l e Upward at the Bas i n-Range - Col orado P l ateau Trans i t i on . Earth and P l anet a rv Sci ence Letters , 28 , 197-204 .

Ke l l er , G . R . , R . B . Smi th , L . W . B rai l e , R . Heaney and D . H . Shurbet . 197 6 . Upper Crustal St ructure of the Eastern Bas i n-Range , Northern Col orado P l ateau and Mi dd le Rocky . Mountai n s . Bu l l . Sei sm. Soc . Am. , 66 , 869-876 .

Young , G . B . and L . W . Brai l e . 197 6 . A Computer P rog ram for the App l i cati on of Zoeppri tz ' s Amp l i tude Equat i ons and Knott ' s Energy Equat i on s . Bu l l . Sei sm . Soc . Am . , 66 , 1881-1885 .

Bra i l e , L . W . 197 7 . I nterp retat i on of Crustal Vel oc i ty Gradi ents and Q-

85

St ructu re u s i ng Amp l i tude-Co r rected Sei smi c Ref ract i on Profi l e s . Geophysi cal Monog raph 20 , Ameri can Geophysi cal Un i on , 427-439 .

Brai l e , L . W . 1978 . Compari son of Fou r Random to Gri d Methods . Computers and Geosci ence s , 4 , 34 1 - 349 .

·

Kel l e r , G . R . , L . w . Bra i l e and J . W . Schl ue . 1979 . Regi ona l Cru sta l St ructu res of the R i o Grande R i ft from Su rface Wave Di spersi on on Mea su rement s , i n Ri o Grande Ri ft : Tect oni cs and Magmat i sm Am . Geophys . Un i on Monog raph , 1 1 5- 126.

· Ke l l e r , G. R . , L. W . Brai l e and P. Morgan . 1979 . Crustal St ruct u re , Geophysi cal Mode l s and Contempora ry Tectoni sm of the Col orado Pl ateau . Tectonophysi cs , 61 , 131- 147 .

Hi nze , W . J . , L . W . B rai l e , G . R . Kel l er and E . G . Li d i ak . 197 9 . Model s for Mi dcont i nent Tecton i sm , i n Cont i nenta l Tecton i cs Nat i ona l Acad . Sci . , 73-83.

O l sen , K . H . , L. W. Brai l e and P . A . John son . 1980 . Se i smi c Vel oci ty and Q- St ruct u re of t he Upper Mant l e L i d and Low Vel oci ty Zone for the Eastern Great Bas i n . Geophy s . Res . Lett ers , 7 , 1029-1032 .

Chand l e r , V . W . , J . S . Koski , W. J . Hi nze and L . W . B rai l e . 1981 . Corre l at i on of Gravi ty and Magnet i c Anoma l i es by I nternal Correspondence Analysi s . Geophysi cs , 46 , 30-39 .

O l sen , K . H . and L . W . Brai l e . 1981 . Sei smog rams of Exp l os i on s at Reg i ona l Di stances i n the Weste rn Un i ted States : Observat i ons and Refl ect i v i ty Method Mode l i ng , i n I dent i f i cati on of Sei smi c Sou rces - Earthquake or Underg round Exp l osi on ( ed . by E. S . Husebye and S . Myk kel tvei t ) , Rei del , New York , 453-466 .

von Fres e , R . R . B . , W . J . Hi nze and L . W. Brai l e . 1981 . Spheri ca l Ea rt h Gravi ty and Magnet i c Anomaly Anal ys i s by Equ i va l ent Poi nt Sou rce I nversi on . Earth and Pl anet . Sci . Letters , 53 , 69-83 .

von F rese , R . R . B . , W . J . H i nze , L . W . B rai l e and A . J . Luca . 1981 . Spheri cal Ea rt h Gravi ty and Magnet i c Anomaly Model i ng by Gau s s Legendre Quadrat u re I nteg rat i on . J . Geophys . , 49 , 234- 242 .

B rai l e , L . W . 1981 . I nterp retati on of Crustal Vel oci ty Gradi ents and Q St ruct u re u s i ng Amp l i tude Corrected Ref ract i on P rofi l es , i n Sei smi c Wave Attenuat i on ( ed . by M . N . Tok soz and D . H . Johnston) , Geophys i cs Rep ri nt Seri es No. 2 , 339-351 , ( repri nted from AGU Monog r . 20 , 1977 ) .

B rai l e , L . W . , W . J . Hi nze , G . R . Kel l e r and E . G . Li d i ak . 1982 . The . Northeastern Exten s i on of the New Mad r id Sei smi c Zone , U . S . Geol . Su rvey Profess i onal Paper No . 1236 , 173-184 .

von F rese , R . R . B . , W . J . Hi nze and L . W . B rai l e . 1982 . Ame ri can Grav i ty and Magnet i c Anomal y Correl at i on s .

Regi onal North Geophy s . J . Roy .

86

Ast r . Soc . , 69 , 745-761 .

von Frese , R . R . B . , W . J . Hi nze , J . L . Sexton and L . W . Brai l e . 1982 . Ve ri fi cat i on of the C rustal Component i n Satel l i te Magnet i c Dat a . Geophy s . Res . Letters , 9 , 293-295 .

H i n ze , W . J . , R . R . B . von Frese , M . B . Longacre , L . W . B rai l e , E . G . Li d i ak and G. R. Kel l er . 1 982 . Regi onal Magneti c and Gravi ty Anoma l i es of South Ame ri ca . Geophys . Res . Letters , 9 , 314-317 .

Russel l , O . R . , G . R . Kel l er and L . W . B rai l e . 1982 . A Techni que t o Dete rmi ne the Th ree Di mens i onal Att i tude and True Vel oci ty of a Refractor . Geophysi cs , 47 , 1 331- 1 334 .

Sexton , J . L . , W . J . Hi nze , R . R . B . von Frese and L . W . Brai l e . 1982 . Long-wavel en gth Aeromagneti c Anoma ly Map of the Contermi nous U . S . A . Geol ogy , 1 0 , 364-369 .

Bra i l e , L . W . , R . B . Smi th , J . An sorge , M . R . Bak e r , M . A . Spa rl i n , C . P rodeh l , M . M . Sch i l ly , J . H . Hea l y , St � Mue l l er , and K . H . O l sen . 1982 . The Yel l owstone-Snake Ri ver P l ai n Sei smi c Profi l i ng Experi ment : Crustal St ructu re of the Eastern Snake R i ver P l ai n . J . Geophys . Res . , 87 , 2597-2609 .

Baker , M . R . , L . W . Brai l e and R . B . Smi t h . 1982 . Amp l i tude Norma l i z at i on of Sei smog rams from Mul t i p l e Sei smograph Recordi ng Systems for the Yel l owstone-Snake Ri ver P l a i n Sei smi c Refract i on Experi ment . J . Geophys . Res . , 87 , 261 1 -2618.

Sch i l ly , M. M . , R . B . Smi th , L . W . Brai l e and J . Ansorge . 1982 . The 1978 Yel l owstone-Eastern Snake R i ver P l a i n Sei smi c P rofi l i ng Experi ment : Dat a and Detai l ed Crustal St ructu re of the Yel l owstone Regi on . J . Geophy s . Res . , 87 , 2692-2704.

Lehman , J . A . , R . B . Smi th , M . M . Sch i l l y and L . W . Brai l e . 1982 . Upper Cru stal St ructure of Yel l owstone from Sei smi c and Grav i ty Observat i on s . J . Geophys . Res . , 87 , 2713-2730 .

Smi th , R . B . , M . M . Sch i l ly , L . W . B ra i l e , J . Ansorge , J . L . Lehman , M . R . Bak e r , C . Prodeh l , J . H . Healy , St . Muel l e r and R . W . Greensfe l de r . 1982 . The 1978 Yel l owstone-Eastern Snake R i ver P l ai n Sei smi c P rofi l i ng Exper iment : Crustal St ructu re of the Ye l l owstone Regi on and Experi ment Des i gn . J . Geophy s . Res . , 87 , 2583-2596 .

Spa rl i n , M . A . , L . W . Brai l e and R . B . Smi t h . 1982 . Crustal St ruct u re of t he Eastern Snake R i ver P l a i n Determi ned from Ray-Trace Mode l i ng of Sei smi c Refracti on Dat a . J . Geophy s . Res . , 87 , 26 19-2633 .

B l ack , P . R . and L . W . B rai l e . 1982 . Pn Vel oc i ty and Coo l i ng of the Conti nental Li thosphere . J . Geophy s . Res . , 87 , 10557 - 1 0568 .

B ra i l e , L . W . , G . R . Kel l er , W . J . Hi nze and E . G . Li d i ak . 1982. An Anc i ent Ri ft Compl ex and its Rel at i on to Contemporary Sei smi ci ty i n the New Mad ri d Sei smi c Zon e . Tecton i c s , 1 , 225-237 .

87

Smi th , R. B . and L . W . Brai l e . 1982 . Crustal St ructu re and Evol ut i on of an Expl os i ve Vol can i c System at Yel l owstone Nat i onal Pa rk , Wyom. Geo l . Assoc . Gu i debook , Th i rty-thi rd Annua l Fi e l d Conference , 233-250 , ( rep ri nted from Exp l os i ve Vol can i sm ) .

Banda , E . , N . Di echmann , L . W . Brai l e and J . Ansorge . 1 982 . Ampl i tude Study of the Pg Phase . J . Geophys . , 51 , 153-164.

Brai l e , L . W . , W . J . Hi nze , J . L . Sexton , G . R . Kel l e r and E. G . Li d i ak . 1 982 . Sei smi c i ty and Tectoni cs of the Mi dcont i nent Uni ted States , P roceedi ngs Thi rd I nternati onal Earthquake Mi crozonat i on Confe rence , Seatt l e , Washi ngton , J u ne 28-J u l y 1 , 1982 , 25-38 .

Ansorge , J . , C . Prodeh l , D . Bamford , wi th cont ri but i ons by E . Banda , E . N . Bessonova , L . W . B rai l e , V . M . F i shma n , E . F l u h , V . S . Geyko , P . Gi ese , D . P . Hi l l , J . G . J u rov , I . P . Kosmi nskaya , W . D . Mooney , G . Mu l l e r , St . Mue l l e r , S . Myk ke l tvei t , J . A . O rcutt , N . I . Pavl enkova , E . L . Rezn i kov , G . A . Si t n i kova and R . B . Whi tma rsh . 1982 . Comparat i ve I nterp retat i on of Exp l osi on Sei smi c Dat a . J . Geophys i cs , 51 , 69-84 , 1982 .

O l sen , K . H . , L . W . Brai l e and J . N . Stewart . 1983 . Model i ng Short -Peri od C ru stal Phases ( P , Lg ) for Long Range Refract i on P rofi l es . Physi cs of the Ea rt h and P l anetary I nteri ors , 31 , 334-347 .

Kel l er , G . R . , E . G . Li d i ak , W . J . Hi nze and L . W . Brai l e . 1983 . The Rol e of Ri ft i ng i n the Tecton i c Devel opment of the Mi dcont i nent , U . S . A . Tectonophy s i c s , 94 , 391-412.

Smi th , R . B . and L . W . Brai l e . 1984 . Crustal St ruct u re and Evo l ut i on of an Expl os i ve Si l i ci c Vol can i c System at Yel l owstone Nat i onal Park , i n Expl os i ve Vol can i sm , I ncept i on , Evo l ut i on and Haza rds , edi ted by F . R . Boyd , Nat i onal Academy P res s , Wash i ngton , D . C . , 96- 109 .

Ch i ang , C . S . and L . W . Brai l e . 1984 . An Examp l e of Two-Di mens i ona l Synthet i c Sei smog ram Model i ng , Bu l l . Sei sm . Soc . Am . , 74 , 509-519 .

Li di ak , E . G . , W . J . Hi nze , G . R . Kel l er , J . E . Reed , L . W . Brai l e and R . W . J ohnson . 1985. Geo l og i c Si gni fi cance o f Regi onal Grav i ty and Magneti c Anomal i es i n the East-Cent ral Mi dcont i nent , i n The Ut i l i ty of Regi onal Grav i ty and Magnet i c Anomaly Map s , edi ted by W . J . Hi nze , Soc . of Exp l o r . Geophysi ci sts , Tu l sa , 287-307 .

B rai l e , L . W . and C . s. Chi ang . 1985 . The Conti nental Mohorovi ci c Di scont i nu i ty : Resu l t s from Nea r-Ve rt i cal and Wi de-Ang l e Sei smi c Refl ect i on Stud i e s , i n Refl ect i on Sei smol ogy : A G l obal Perspect i ve , AGU Geodynami cs Seri es , v . 13 , edi ted by M . Barazangi and L . Brown , Amer . Geophy s . Un i on , Was h . D . C . , 257-27 2 .

Sexton , J . L . , L . W . Brai l e , W . J . Hi nze and M. J . Campbe l l . 1986 . Sei smi c Refl ect i on P rofi l i ng Studi es of a B u ri ed P recamb ri an R i ft Beneath the Wabash Val l ey Faul t Zone , Geophysi cs , v. 51 , 640-660 .

B rai l e , L . W . , W . J . Hi nze , J . L . Sexton , G . R . Kel l er and E . G . Li d i ak .

88

1986 . Tectoni c Devel opment of the New Madri d Ri ft Comp l e x , Mi ss i ss i ppi Embayment , North Ame ri c a , Tectonophysi cs , in p ress .

Hi nze , W . J . and L . W . Brai l e . 1986 . Geophysi ca l Aspect s of the Craton , submi tted to GSA-DNAG vol ume , The Mi dcont i nent P rov i nce : U n i ted States .

O l sen , K . H . , L . W . Brai l e , J . N . Stewart , C . R . Daudt , G . R . Kel l er , L . A . Ankeny and J . J . Wol ff . 1986. The Jemez Mountai ns Vol can i c F i e l d , New Mexi co : Ti me Term I nterp retat i on of the CARDEX Sei smi c Experi ment and Compari son wi th Bouguer Gravi ty , J . Geophy s . Res . , v . 9 1 , 6 175-6 187 .

Ankeny , L . A. , L . W . Brai l e and K . H . Ol sen . 1986 . Uppe r Crustal St ruct u re Beneath the J emez Mountai ns Vol can i c F i e l d , New Mexi co Determi ned by Three-Dimen s i ona l Si mu l taneou s I nvers i on of Sei smi c Refracti on and Earthquake Dat a , J . Geophy s . Res . , v . 91 , 6 188-6198.

OTHER PUBLI CATI ONS , ABSTRACTS AND REPORTS

Brai l e , L . W. 1970 . The I sostat i c Cond i t i on and Crust al St ructu re of Mou nt Sai nt Hel ens as Determi ned from Gravi ty Dat a . M . S . Thesi s , Un i vers i ty of Washi ngton , Seatt l e , Wash i ngton , 37 pages .

B rai l e , L . W . 1973 . Sei smi c I nterpretat i on of C ru stal St ructu res Across the Wasatch Front and App l i cat i on s of Geophysi cal Data I nversi on . P h . D . Thes i s , Un i vers i ty of Utah , Sal t Lake C i ty , Utah , 143 pages .

Hi nze , W . J . , L . W . Brai l e , V . W . Chand l e r and F . E . Mazzel l a . 1975 . Combi ned Magnet i c and Grav i ty Analys i s . F i na l Techn i cal Report #S-500 29A Modi fi cat i on No . 8, NASA Goddard Space F l i ght Center , 87 p .

Hi nze , W . J . , L . W . B rai l e , G . R . Kel l er and E . G . Li d i a k . 197 7 . A Tectoni c Overvi ew of the Cent ral Mi dcont i nent . Techn i ca l Report #NUREG/CR-0382 , U . S . Nuc l ear Reg u l atory Commi ssi on , 1 06 p .

Chand l e r , v . W. , J . F . Kosk i , L . W . Brai l e and W . J . Hi nze . 1977 . Ut i l i ty of Correl at i on Tech n i ques i n Grav i ty and Magnet i c I nterpretati on . Fi na l Techn i cal Report #NAS5-22816 , NASA Godda rd Space F l i ght Center , 1 19 p .

Brai l e , L . W . , W . J . Hi nze , G . R . Kel l e r and E . G . Li d i ak . 1978 ) . An I nteg rated Geophysi cal and Geol og i c Study of the Tectoni c F ramework of the 38th Paral l el Li neament i n the Vi ci n i ty of i t s I ntersect i on with the Extensi on of the New Madri d F au l t Zon e . Techni cal Report #NUREG/CR-0449 , U . S . Nuc l ea r Reg u l atory Commi s s i on , 67 p .

B rai l e , L . W . , W . J . Hi n ze , J . L . Sexton , G . R . Kel l er and E . G . Li d i ak . 1979 . An I ntegrated Geophysi cal and Geol ogi cal Study of the Tecton i c F ramework of the 38th Para l l el Li neament i n the Vi ci n i ty of i t s I ntersect i on wi th the Extensi on of the New Madri d Fau l t Zone . Techn i cal Report #NUREG/CR-1014 , U . S . Nucl ear Reg u l atory Commi ss i on , 191 p .

Bowman , P . L . , L . W . Brai l e , V . W . Chand l e r , W . J . Hi nze , A . J . Luca and R . R . B . von F rese . 1 979 . Magnet i c and Gravi ty Anomaly Corre l at i on and

89

i t s App l i cat i on to Satel l i te Dat a . Techni cal Memorandum #79702 , NASA Godd a rd Space F l i ght Cente r , 1 56 p .

B rai l e , L . W . , W . J . Hi nze , J . L . Sexton , G . R . Ke l l e r and E . G . L i d i ak . 1980. An I nteg rated Geophysi cal and Geol ogi cal Study of the Tecton i c F ramework of the 38th Paral l e l Li neament i n the Vi ci n i ty of i t s I nte rsect i on wi th the Extensi on o f the New Madr i d Fau l t Zone. Annual Progess Report #NUREG/CR-1878 , U . S . Nuc l ea r Regu l ato ry Commi s s i on , 131 p .

von Frese , R . R . B . , W . J . Hi nze , L . W . Brai l e and A . J . Luca . 1980 . Spheri cal Earth Grav i ty and Magnet i c Anoma ly Model i ng by GaussLegendre Quadrature I ntegrat i on . Techn i cal Report #NAS5-25030 , NASA Godda rd Space F l i ght Center , 1 16 p .

von Frese , R . R . B . , W . J . Hi nze and L . W . Brai l e . 1980 . Spheri ca l Earth Analysi s and Model i ng of Li thospheri c Grav i ty and Magneti c Anomal i es .

· Techn i cal Memorandum #80709 , NASA Godda rd Space F l i ght Cente r , 163 p .

B rai l e , L . W . , J . L . Sexton , K . W . Mart i ndal e and C . S . Chi ang . 1 982 . Sei smi c Wave Generat i on and Propagat i on from Coa l Mi ne Bl asts at the W ri ght Mi ne , Wa rri ck County , I ndi ana . F i nal Report , Cont ract No . J 66 1 1205 , U . S . Offi ce of Su rface Mi n i ng , 343 p .

B rai l e , L . W . 1982 . Synthet i c Sei smog ram Model i ng , Techni cal Repo rt ONR-1-82 , ONR Cont ract No . N00014-75-C-0972 , 99 pages .

Ch i an g , C . S . and L . W . B rai l e . 1983 . Gu i de to Sei smi c Ray Trac i n g ( RAY2DM ) and Di sk Ray Theory ( ORT ) Synthet i c Sei smogram P rograms for Two-Di mensi onal Sei smi c Vel oc i ty Model s , Techni cal Report , ONR Cont ract N00014-82-K-033 , 87 pages .

H i nze , W . J . , L . W . Brai l e , G . R . Kel l er and E . G . Li d i ak . 1983 . Geophysi cal -Geo l ogi cal Studi es of Possi b l e Extens i ons of the New Madri d Fau l t Zone , U . S . Nuc l ea r Regul atory Commi ssi on Techni cal Report NUREG/CR-3174 , 88 page s .

Brai l e , L . W . , C . S . Ch i ang and C . R . Daudt . 1983 . Synthet i c Sei smogram Cal cu l ati ons for Two-Di men si onal Vel oc i ty Mode l s , Techni cal Report ONR-1-83 , ONR Cont ract N00014-82-K-033 , 80 pages .

Harri son , W . , O. Edgar , A . Van Lui k , W . Hi nze , L . B ra i l e , J . Kal l i okoski , H . Pfannkuch , H . Wri ght , J r . , M . Ti sue and M . Sood . 1984 . Geol ogy , Hyd rol ogy , and Mi neral Resou rces of C rysta l l i ne Rock Areas of the Lake Superi or Regi on , U n i ted States , Argonne Nati onal Laboratory Report ANL/ES-134, Pa rts 1 and 2 .

90

V ITA

J . J ames E i de l

PERSONAL

P resent Pos i t i on : Pr i nc i pal Geol ogi st and Head of Mi ne ral Resou rces Group

Offi ce Phone : ( 21 7 ) 333-5116 ; home : ( 21 7 ) 328- 1632

Offi ce Add ress : I l l i noi s State Geol ogi cal Su rvey Room 2 1 1 , Natu ral Resou rces Bui l d i ng 615 East Peabody Dri ve Champai g n , I L 6 1820

Date of B i rth : 3 Ju ly 1936

EDUCATI ON

1963 U n i versi ty of Cal i fo rn i a , Los Angel es , M . A . Geol ogy ; 1959 Un i versi ty of Ari zona , B . S . Geo l og i cal Engi nee ri ng

PROFESSI ONAL EXPERI ENCE

1966-1968

10/ 1968

1968- 1969

3/ 1970

1970- 1971

12/ 197 1

1972-1973

Exp l orat i on-Di st ri ct Geo l og i st , Hanna Mi n i ng Company , Tu scon , Ari zona ; coord i nated and app l i ed geol ogi ca l , geophysi cal and geochemi cal techn i ques to porphyry copper exp l orat i on i n southweste rn U . S.

Assessed economi c c l i mate and exp l orat i on potent i a l i n Phi l i pp i nes .

Seni or Geol ogi st , BHP-Hanna P roj ect , Lower Hutt , New Zea l and ; devel oped New Zea l and hot spri ng gol d model now p reval ent i n western U . S . ; eval uated most New Zeal and gol d di st ri cts .

Eval uated Hanna ' s southwest U . S . A . expl orati on program .

Di st ri ct Geol ogi st , BHP-Hanna Jo i nt Vent u re , Lae , New Gu i nea ; desi gned and i n i t i ated maj or porphyry copper expl orat i on program that eval uated maj or port i on s of New Gui nea Hi gh l ands , North Coast , New Br i tai n and New Hanover , i nt roduced gol d samp l i ng as exp l o rat i on tool to BHP , and eval u ated bauxi te potenti a l of Northe rn New Hebri des .

Consu l tant , Broken H i l l Prop ri eta ry , Ltd . ; eval uated BHP Queen s l and porphyry copper/molybdenum ta rget s ; gave semi nar for BHP geol ogi sts on porphyry copper exp l orat i on and eva l uat i on .

Regi onal Geol og i st , Un i on Oi l / Hanna Mi n i n g jo i nt vent u re ; compl eted st ructu ral geo l ogy port i on of Posei don n i ckel mi ne feas i bi l i ty study , eval u ated Yeel i rri e u ran i um d i scovery by Western Mi n i ng and l ake system to south ; d ri l l ed p redi cted

8-9/1972

1973-1976

1-2/ 1 977

1977- 1978

1978-1984

1984-1985

91

mass i ve su l f i de occu rrences , mapped greenston e bel ts and defi ned n i ckel -bea ri ng ta rgets i n st rong ly l ateri t i zed terrane .

Consu l tant Uni on O i l -Hanna Jo i nt Ventu re ; vi s i ted Canadi an vol canogeni c massi ve su l fi de depos its and wrote compari son Canadi an Abi t i bi Sub-Provi nce , Ontari o-Quebec with Y i l garn Sub-Provi nce , Au st ral i a .

Exp l orat i on Manager , Au st ra l i an Hanna Ltd . , Perth , Western Au st ral i a ; i n i t i ated , des i gned , and managed Au st ra l i an exp l orat i on program , acqu i red and eval uated West Au st ra l i an i ron ore reserves , acqui red and eval uated new Queens l and copper di st ri ct .

Consu l tant Hanna Mi n i ng ; eval uated Han na-Getty Oi l Casa Grande P roj ect pr i or to d i scovery .

Expl orat i on Manager - Eastern U . S . , Hanna Mi n i ng Company , St . Lou i s , Mi ssou ri ; desi gned and establ i shed mi d-cont i nent base metal exp l orat i on prog ram , managed maj o r base metal prog ram for Hanna Mi n i ng and Nat i onal Steel .

Expl orat i on Manager - Eastern North Ameri ca , Hanna Mi n i ng Company , St . Loui s , Mi ssou ri , and Toront o , Ontari o , Canada ; i n i t i ated comparat i ve economi c analysi s of on-shore U . S . o i l and gas basi ns , mon i tored and negot i ated Athabasca u ran i um j oi nt vent u re , and managed mi d-cont i nent base meta l and o i l expl orat i on .

U . S . Exp l o rat i on Manage r , Hanna Mi n i ng Company ; des i gned and managed gol d exp l orati on p rog ram , l and acqu i s i t i o n , and d ri l l p rogram ; con su l ted for Dow Corn i n g Bi l l i e borax mi ne , and d i d economi c analys i s of Coastal Mi n i ng j oi nt ventures .

1985-p resent Pri nci pal Geol ogi st and Head of Mi nera l Resou rces Grou p , I l l i noi s State Geol ogi cal Su rvey , Champai g n , I L .

PROFESSI ONAL ORGANI ZATI ONS

1986 Membe r , Dept . of Conservat i on - Wet l ands Advi sory Commi ttee

Steeri ng Commi ttee Cont i nental I nteri or C ru stal Studi es Con sort i um , DOSECC

Chai rman , Prog ram Pol i cy Commi ttee , SEG ; Fu ndi ng Revi ew P ri ori ty Commi ttee , SEG

1985 Vi ce Presi dent Soc . Economi c Geol ogi sts ; SEG Execut i ve and P rog ram Pol i cy Commi ttees

1984 GSA Commi ttee on Commi ttees ; SEG Prog ram Pol i cy Commi ttee

1980-1985

92

Chai rman - Mi neral Resou rces Panel and Member of Cont i nental Sci ent i fi c Dri l l i ng Commi ttee , Nati onal Academy of Sci ences , Nat i onal Research Counci l

RECENT PUBLI CATI ONS

Ei del , J . J . and C. Meyer , i n press , Mi neral Resou rce Obj ect i ves of the Conti nental Sci ent i fi c Dri l l i ng Commi ttee ' s Dedi cated Dri l l Hol es and Add­On Sci ence to Sol ve Mi neral Deposi t Probl ems , AI ME Tran sact i ons

E i del , J . J . and C . Meye r , 198 5 , Sci ent i f i c Dri l l i ng to Study the Roots and Ma rg i ns of Hydrothermal Mi neral Systems ; Exp l o rat i on and Observat i on of Deep Cont i nental Cru st t h rough Dri l l i ng , Ed . , B. Ra l ei gh , Spri nger-Ver l ag , Berl i n , Ge rmany , 121-129 .

E i del , J . J . , 1984 , Mi nera l Resou rces Resea rch Obj ect i ves to the Cont i nental Sci enti f i c Dri l l i ng P rogram . J . J . E i del , Chai rman , Panel on Mi neral Resources , Cont i nental Sci ent i fi c Dri l l i ng Commi ttee , NAS/NRC , Nat i onal Academy P ress , Washi ngton , D .C . , 56 p .

Ei del , J . J . and C . Meyer , 1984 , Deep dri l l i ng for sci ent i f i c study of hydrothermal ore-formi ng systems [ abs . ] i n Ameri can Geophys i cal Un i on , 1984 Fal l Meet i ng , Dec . 3-7 , 1984 , San Fran s i sco , EOS , Transact i ons , Ame ri can Geophysi cal Un i on , 66 ( 10 ) , p. 1 1 5- 1 1 6 , March 5, 1985

Bet h k e , P. M . , and J . Ei del , 1985 , Resea rch dri l l i ng opportun i t i es i n ore depos i ts and act i ve hydrothermal systems [ abs . ] , EOS, v . 6 6 , p . 37 1 .

Frost , J . , J . Ei de l. , and J . Goodwi n , 1986 , I l l i noi s Basi n U l t radeep Dri l l hol e : Sept . 1986 , Geot i mes ( i n p ress - EOS ) .

PRESENTATIONS 1985-86

Mi neral Resou rces I n I l l i noi s ' Fut u re ( i n p reparat i on ) N . I . U . , Oe Kal b

93

I ndust ri a l Mi neral P rog rams and P roj ect s of the I l l i noi s State Geo l og i cal Survey - How they Rel ate to the I l l i noi s Aggregate Producer , I l l i noi s Associ at i on Aggregate P roducers - Spri ngfi el d , I l l i noi s

Sci enti fi c Rat i onal e for I l l i noi s Basi n U l t radeep Dri l l hol e : Un i vers i ty of I l l i noi s - C-U S . I . U . - Carbondal e , I L Argonne Nat i ona l Labs , Argonne , I L I l l i noi s Geo l ogi cal Soci ety - Fai rfi el d , I L DO SECC - SAC , Rapi d Ci ty , S . D .

94

V ITA

C . PATRI CK ERVI N

PERSONAL

P resent Posi t i on : Associ ate P rofessor , Dept . of Geol ogy , Nort hern I l l i noi s Un i vers i ty , DeKa l b , I L 601 1 5

Offi ce Phone : ( 815 ) 7 53-1942

Offi ce Addres s : Depa rtment of Geol ogy Northern I l l i no i s Un i vers i ty DeKa l b , I l l i noi s 601 1 5

P l ace o f B i rth : Danvi l l e , I l l i noi s

Date of Bi rth : August 5 , 1 943

EDUCATI ON

1965 Washi ngton Un i vers i ty , St . Lou i s , MO ; B . S . , Physi cs 1968 Washi n gton Un i ve rs i ty , St . Lou i s , MO ; A .M . , Geophysi cs 1972 Un i vers i ty of Wi sconsi n , Madi son , WI ; Ph . D . , Geophysi cs

PROFE SSI ONAL EXPERI ENCE

1981-Present : Associ ate Profes sor , Dept . of Geo l ogy , Northern I l l i noi s Un i vers i ty , DeKa l b , I l l . 60115

1 975- 1981 : Assi stant Professor , Dept . of Geol ogy , Northern I l l i noi s Un i vers i ty , DeKa l b , I l l . 601 15

1972-197 5 : Resea rch Assoc i at e , Dept . of Geo l ogy , Northern I l l i noi s Un i vers i ty , DeKa l b , I l l . 601 15

1972- 1 973 : Geophysi ci st ( 50% t i me ) , I l l i noi s Geol ogi ca l Su rvey , Urbana , I L 6 1820

OTHER PROFESSI ONAL ACTI V ITI ES

Other P rofessi onal Acti v i t i es :

Associ ate Edi tor- -Geophysi cs for 11Geosci ence Wi scons i n " ( 1976-85 ) WAE status wi th U . S . Geol ogi cal Su rvey ( 1977-78) Associ ate Sci ent i st , Dry Val l ey Orfl l i ng P roj ect ( 1975- 7 6 ) Vi s ited Paki stan Geol ogi cal Su rvey wi th NSF-sponsored cooperat i ve sci ence

party ( 1977 ) Con su l t i ng geophysi ci st with Wi scons i n Geol ogi cal Su rvey { 1978 ) Attended Conoco Oi l Co . sei smol ogy school ( 1980) Attended Harri s Corp . computer school ( 1983 , 1985 )

PROFE SSI ONAL ORGANI ZATI ONS

Soc i ety of Expl orat i on Geophysi ci sts Ameri can Geophysi cal Un i on Eu ropean Associ at i on of Exp l orat i on Geophysi c i sts Geo l og i cal Soc i ety of Ame ri ca

95

Ame ri can As soci at i on of Pet rol eum Geol ogi sts S i gma Xi

MAJOR RESEARCH I NTERESTS

App l i ed geophysi cs , potent i al fi e l d s , computer appl i cat i ons to probl ems i n the ea rth sci ences .

PUBLI CATIONS

PAPERS

McGi nni s , L. D . , and E rvi n , C. P . the I l l i noi s Basi n . Geol ogy ,

1974 . Earthquake and B l ock Tecton i cs i n v . 2 , p . 517-519 .

Hammer , S . , and Ervi n , C . P . . 1975 . Crater or Kett l e?--A Geophysi cal Study . Geol ogy , v . 3 , p . 145- 146 .

E rvi n , C . P . , and McGi n ni s , L . D . 197 5 . Reel foot Ri ft : React i vated · Precu rsor to the Mi ss i ss i ppi Embayment . Geol . Soc . Am . Bu l l . , v . 86 ,

p . 1287-1295 .

E rv i n , C . P . , and Mudrey , M . G . , J r . 1976 . Extens i on of a Northern Mi n nesota Lamprophyre Provi nce by Geophysi cal Stud i e s . J r . Geophys . Res . , v . 81 , p . 4917-4922 .

McGi nn i s , L . D . , Hei gol d , P . C . , Ervi n , C . P . , and Hei da ri , M . 197 6 . The Grav i ty F i el d and Tectoni cs of I l l i noi s . I l l . Geol . Su rv . G i re . 494 , 28 p .

E rv i n , C . P . 1976 . Reduct i on t o the Magnet i c Pol e Us i ng a Fast Fou ri e r Seri es Al gori thm . Computers and Geosci ences , v . 2 , p . 2 1 1-217 .

E rv i n , C . P . 1977 . Theory of the Bouguer Anomal y . Geophysi cs , v . 42 , p . 1468 .

E rv i n , C . P . , and Wol f , M . G . 197 7 . Ground Magnet i c Studi es of Vol can i c Rocks i n the Tayl or and Wri ght Val l eys Reg i on . Antarct i c J r . of the U . S . , v. 12 , p. 105 .

McGi nni s , L . D . , Wol f , M . G . , Kohsmann , J . J . , and Ervi n , C . P . 1979 . Regi onal F ree-Ai r Grav i ty Anomal i es and Tecton i c Observat i ons i n the Un i ted States . J r . Geophy s . Res . , v . 84 , p . 591-601 .

Pederson , D . R . , Montgomery , G . E . , McGi nni s , L . D . , Ervi n , C . P . , and Wong , H . K . 1981 . Aeromagnet i c Su rvey of Ross I s l and , McMurdo Sound , and the Dry Val l eys . Am. Geophys . Un i on Anta rct i c Res . Seri es , v33 , p . 7-25 .

Ervi n , C . P . , McGi nni s , L . D . , Oti s , R . M . , and Hal l , M . L . 1983 . Automated Analys i s of Mari ne Refract i on Data : A Computer Al gori t hm . Geophy s . , v . 48 , p . 582- 589 .

96

Ervi n , C . P • • 1983 . Wi scons i n Grav i ty Base Stat i on Network . Wi s . Geol . Su rv . Mi s c . Paper 83-1 , 43 p .

Ervi n , C . P . 1985 . Reduct i on of a Two-Gravi mete r Base Network by L i near Regressi on . Geophysi cs , v . 50 , p . 867-869 .

Ervi n , C . P . , and McGi nni s , L . D . I n Press . Temporal Vari at i on s i n the Grav i tat i onal F i e l d i n the Mi ss i ssi ppi Embayment . J r . Geophy s . Res .

Mento , D . J . , Erv i n , C . P . , and McGi n n i s , L . D . I n Pres s . Peri odi c Energy Rel ease i n the New Madri d Sei smi c Zone . Sei s . Soc . Am . Bu l l .

Powers , M . N . , Ervi n , C . P . , and Wei ss , M . P . Reconna i ssance Magnet i c Survey of Anti gua , West I nd i e s . Submi tted to Cari bbean J r . Sci .

TECHNI CAL REPORTS

E rv i n , C. P . , and Laurence , J . P . 1968. Geophys i cal Exp l orat i on for Ground Water a round Owen , Wi s . , Thorp , Wi s . , and the C l ark County Hosp i ta l , Wi s . , Report for Owen Ayres and Assoc i ates , Eau Cl a i re , Wi s .

Ervi n , C . P . , and Hammer , S . 1977 . Eval uat i on of the State of Wi sconsi n Gravi ty Base Stat i on Network , Report for Wi scons i n Geol ogi cal Su rvey , Mad i son , Wi s .

Erv i n , C . P . 1978 . Anal ysi s of C l am Lake Gravi ty and Magnet i c Anomal i es , Report for Wi scon s i n Geol ogi cal Su rvey , Mad i son , Wi s .

MAPS

Ervi n , C . P . , and Hammer , S . 1974 . Bouguer Anomal y Grav i ty Map of Wi s . Map Seri es 6 , W i s . Geol . & Nat . Hi st . Wi scons i n (wi th text ) .

Su rv . , Mad i son .

H i l denbrand , T . G . , Ervi n , C . P . , Hendri cks , J . , Kel l e r , G . R . , McGi nn i s , L . D . , and Stea rns , R . G . 1977 . Bouguer Gravi ty Map of t he Northern Mi ss i ss i ppi Embayment , Parts of Mi s souri , Arkan sas , Tennessee , Kentucky , and I l l i noi s . U . S . Geol . Su rv . { open fi l e report #77-228 ) .

K ren z , K . , and Ervi n , C . P . 1977 . Simp l e Bouguer Gravi ty Map of Mi n nesota­Ou l uth Sheet . Mi sc . Map Seri es M-37 , Mi n n . Geol . Su rv . , St . Paul .

McGi nn i s , L . D . , J ack son , J . K . , and Ervi n , C . P . 1978 . Si mp l e Bouguer Grav i ty Map of Mi nnesota--B rai nerd Sheet . Mi sc . Map Seri es M-40 , Mi nn . Geol . Su rv . , St . Pau l .

McGi nn i s , L . D . , Steffy , D . A . , and Ervi n , C . P . 1978 . Si mp l e Bouguer Gravi ty Map of Mi nnesota--Bemi dj i Sheet . Mi s c . Map Seri es M-41 , Mi nn . Geol . Su rv . , St . Paul .

Ervi n , C . P . , ! kol a , R . J . , and McG i n n i s , L . D . 1980 . Simp l e Bouguer Grav i ty Map of Mi n nesota--New Ulm Sheet . Mi sc . Map Seri es M-43 , Mi n n . Geol . Su rv . , St . Pau l .

97

E rvi n , c . P . 1980 . Si mpl e Bouguer Grav i ty Map of Mi nnesota--St . C l oud Sheet . Mi sc . Map Se ri es M-44, Mi n n . Geol . Su rv . , St . Pau l .

Ervi n , C . P . , VanDeVoorde , B . W . , and Chand l e r , V . 1982 . Simpl e Bougue r Grav i ty Map of Mi nnesota--St . Paul Sheet . Mi n n . Geol . Su rv . Mi sc . Map Se ri es M-48 , St . Pau l .

E rvi n , C . P . , Tuftee , K . K . , and Funck , J . A . 1983 . Simpl e Bouguer Gravi ty Map--Northeast Sheet . Geol . At l as Se r . 83-2 , Wi s . Geol . & Nat . H i st . Su rv . , Madi son .

98

V ITA

Paul C . Hei gol d

PERSONAL

P resent Pos i t i on : Lead Geophysi ci st , I l l i noi s State Geol ogi cal Su rvey

Off i ce Phone : ( 21 7 ) 344-1481 ; ext . 251

Off i ce Address : Geophysi cs U n i t I l l i noi s State Geol ogi cal Su rvey 615 East Peabody Dri ve Champai gn , I l l i noi s 61820

P l ace of B i rth : St . Lou i s , Mi ssou ri

Date of Bi rth :

Home Address :

EDUCATI ON

Ap ri 1 9, 1936

2001 C Mel rose Dri ve Champai gn , I l l i noi s 61820

1957 St . Lou i s Uni vers ity , St . Lou i s , Mi ssouri ; B . S . , Geophysi cal Engi neeri ng

1961 St . Lou i s Un i vers i ty , St . Lou i s , Mi ssou ri ; M . S . , Geophysi cs 1963 Un i vers i ty of I l l i noi s , U rbana , I l l i noi s ; M . S . , Mathemat i cs 1969 Un i vers i ty of I l l i noi s , U rbana , I l l i noi s ; Ph . D . , Geol ogy

PROFE SSI ONAL EXPERI ENCE

1957-1958

1 959-1960

1960-1962

Summer 1963 Summer 1970

1 962-1986 1986-present

Geophys i ci st , Ca rter O i l Company ( Standard Oi l of New J ersey ) , Tu l sa , Ok l ahoma

Teachi ng Fel l owsh i p , I nst i tute of Technol ogy , St . Lou i s Un i vers i ty , St . Lou i s , Mi ssouri

Teach i n g Assi stantshi p , Mathemat i cs Depa rtment , Un i vers i ty of I l l i noi s , U rbana , I l l i noi s

Geophysi ci st , Desert Research I n sti tute , Reno , Nevada Geophysi ci st , I l l i noi s-Pri nceton Archaeo l ogi cal Exped i t i on to

Morgant i na , Si ci ly Geophysi c i st , I l l i noi s State Geol ogi cal Su rvey Lead Geophysi ci st , Geophysi cs Un i t , I l l i noi s St ate Geo l ogi ca l

Su rvey

PROFE SSI ONAL ORGANI ZATI ONS

Ame ri can Geophysi cal Un i on Soc i ety of Expl orat i on Geophysi c i sts

AWARDS AND PROFESSI ONAL RECOGNI TI ON

Graduate Fel l owsh i p , St . Lou i s Uni vers i ty , St . Lou i s , Mi ssou ri Pi Mu Epsi l on Honora ry Mathemat i cs Fratern i ty Si gma Xi

MAJOR RE SEARCH I NTERESTS

Expl orat i on Geophysi cs Eart hquake Sei smol ogy Hyd rogeol ogy

THESES

99

Hei gol d , P . C . 1960 . Crusta l thi ckness of the Sa i nt Lou i s area determi ned by the phase vel oc i ty of Rayl ei gh wave s . M . S . thesi s , St . Lou i s Un i vers i ty , St . Loui s , Mi ssou ri .

Hei gol d , P . C . 1969 . Theo ret i ca l analys i s of regi ona l groundwater fl ow i n the Havana regi on , I l l i noi s . Ph . D . thesi s , Un i vers i ty of I l l i noi s . Urbana , I l l i noi s .

100

PUBLI CATI ONS

McGi nn i s , L. D. and P. C. Hei gol d . 1961 . Regi onal maps of vert i cal magnet i c i nten s i ty i n I l l l i noi s . C i rcu l ar 324 , I l l i noi s State Geo l ogi cal Su rvey , Champai gn , I l l i noi s 61820 . 12 p .

McGi nn i s , L . D . , J . P . Kempton , and P . C . Hei gol d . 1963. Rel at i onsh i p of grav i ty anomal i es to a dri ft-fi l l ed bedrock val l ey system i n northern I l l i no i s . Ci rcu l ar 354, I l l i no i s State Geol ogi cal Survey , Champai g n , I l l i noi s 61820 . 23 p .

Hei gol d , P . C . , L . D . McGi nn i s , and R . H . Howard . 1 964 . Geo l ogi c s i gn i fi cance of the g rav i ty fi e l d i n the DeWi tt-Mclean County a rea , I l l i noi s . Ci rcu l a r 369 , I l l i noi s State Geol ogi cal Su rvey , Champai gn , I l l i noi s 61820 . 16 p .

DuMontel l e , P . B . , P . C . Hei go l d , M . Hei dari , and D . H . Swann . 1968 . Computer-cal cu l ated Lambert Conformal Con i c Proj ect i on tabl es for I l l i noi s ( 7 . 5-mi nute i ntersect i ons ) . I ndust ri a l Mi nera l s Note 35 , I l l i noi s State Geol ogi cal Su rvey , Champai gn , I l l i noi s 6 1820 . 25 p .

Hei gol d , P . C . 1968 . Notes on the ea rthquake of Novembe r 9 , 1968 i n southern I l l i noi s . Envi ronmental Geol ogy Notes 24 , I l l i noi s State Geol ogi cal Su rvey , Champai gn , I l l i noi s 61820 . 16 p .

Hei gol d , P . C . and J . E . Lama r . 1970. Two-di mensi onal shape of sand made by crush i ng l imestones of d i ffe rent textu res . I ndust ri a l Mi neral s Note 41 , I l l i noi s State Geo l ogi cal Su rvey , Champai g n , I l l i noi s 6 1820 . 23 p .

Hei gol d , P . c . 1970 . A gravi ty survey of extreme southeastern I l l i noi s . Ci rcu l ar 450, I l l i noi s State Geol ogi cal Su rvey , Champai gn , I l l i noi s 61820 . 1 2 p .

Hei gol d , P . C . , R . F . Mast , and K . Cartwri ght . 197 1 . Temperatu re d i st ri but i ons and groundwater movement associ ated with oi l fi e l ds i n the Fai rfi e l d Basi n , I l l i noi s . I n Proceedi ngs of the Symposi um on Futu re Pet rol eum Potent i a l of NPC-Regi on 9 , D. C. Bond ( Chai rman ) , I l l i noi s Pet rol eum 9 5 , I l l i noi s State Geol ogi cal Su rvey , Champai g n , I l l i noi s 6 1 820 . p . 1 27- 1 40 .

F raser , G . s . , R . D . Harvey , and P . C . Hei gol d . 1972 . P ropert i es o f chert rel ated to i t s react i v i ty i n an a l k a l i ne envi ronment . Ci rcu l ar 468 , I l l i noi s State Geo l ogi cal Su rvey , Champai gn , I l l i noi s 61820 . 3 1 p .

McGi nn i s , L . D . and P . C . Hei gol d . 1974. A sei smi c refract i on su rvey of the Meredosi a Channel a rea of northwestern I l l i noi s . Ci rcu l a r 488 , I l l i noi s State Geol ogi cal Su rvey , Champai g n , I l l i noi s 6 1820 . 1 9 p .

Hei gol d , P . C . 1976 . An aeromagnet i c su rvey of southweste rn I l l i noi s . Ci rcu l ar 495 , I l l i no i s State Geo l ogi cal Su rvey , Champai gn , I l l i noi s 61820 . 28 p .

101

McGi nn i s , L . o . , P . c . Hei gol d , C . P . Ervi n , and M . Hei da ri . 1976 . The grav i ty fi el d and tectoni cs of I l l i noi s . C i rcu l ar 494 , I l l i noi s State Geol ogi cal Su rvey , Champai gn , I l l i noi s 61820 . 28 p .

Hei gol d , P . C . and P . L . Roa re . 197 7 . A ground magnet i c su rvey of the Johnson County area , I l l i noi s . Un i ted States Nuc l ea r Regu l atory Commi ssi on Cont ract , US NRC AT ( 49-24 ) -0318. 25 p .

Hei gol d , P . C . and R . W . Ri n g l e r . 1979 . A sei smi c refract i on stud of the l ower I l l i noi s Val l ey bottoml and s . C i rcu l ar 507 , I l l i no i s State Gel ogi c l Su rvey , Champai gn , I l l i noi s 61820 . 18 p .

Hei gol d , P . C . , R . H . Gi l keson , K . Cartwri ght , and P . C . Reed . Aqu i fe r t ransmi ss i v i ty from su rfi ci al e l ect ri cal methods . vol . 1 7 , no . 4 , J u ly-August . p . 338-345 .

197 9 . Groundwater ,

Hei go l d , P . C . , R . h . Gi l keson , K . Cartwri ght , and P . C . Reed . 1980 . Rep l y t o t he d i scussi on by W . E . Kel ly o f Aqu i fer Transmi ss i v i ty from Su rfi ci a l El ect ri cal Method s . G roundwater , vol . 18 , n o . 2 , March­Ap ri l . p . 183- 184 .

Pool e , V . L . and P . C . Hei gol d . 198 1 . Geophysi cal assessment of aqui fers supplyi ng groundwater to ei ght smal l commun i t i es i n I l l i noi s . Envi ronmenta l Geol ogy Notes 91 , I l l i no i s State Geol ogi cal Su rvey , Champai gn , I l l i noi s 6 1820 . 61 p .

Kempton , J . P . , R . W . Ri ngl e r , P . C . Hei gol d , K . Cartwri ght , and V . L . Pool e . 1981 . Groundwater resou rces of northern Vermi l i on County , I 1 1 i noi s . En v i ronmenta 1 Geol ogy Notes 101 , I 1 1 i noi s State Geo 1 ogi ca 1 Su rvey , Champai gn , I l l i noi s 61820 . 36 p .

Larson , T . H . and P . C . Hei go l d . 1981 . Di scu ss i on of p rel i mi nary eval uat i on of and a lternate e l ect rode a rray for use . I n Shal l ow Subsu rface El ect ri cal Res i st i vi ty Studi es by T . J . CarrTngton and D . A . Watson . Groundwater , vol . 1 9 , no . 4 , J u l y-Au gust � p . 433-434 .

Larson , T . H . , P . C . Hei gol d , and R . H . Gi l keson . 1983 . Su rfi c i al e l ect ri cal resi st i v i ty and shal l ow geothermi c su rveys east of t he Sheffi e l d l ow- l evel radi oact i ve waste d i sposal s i t e , Bu reau County , I l l i noi s . I l l i noi s St ate Geol ogi cal Su rvey Cont ract /Grant Report . 1983-1 . 17 p .

Hei gol d , P . C . , V . L . Pool e , K . Cartwri ght , and R . H . Gi l keson . 1985 . El ect ri cal Earth Resi sti v i ty Su rvey of the Macon-Tayl orvi l l e R i dged­Dri ft Aqu ifer . I l l i noi s State Geo l ogi cal Su rvey Ci rcul ar 533 . 23 p .

Gi l keson , R . H . and P . C . Hei gol d . 1985. Magnetometer Su rvey to Defi ne Trench Boundari es on a Secure Hazardous Waste Di sposal Si te ( Abst ract ) . Second Nat i onal Conference on Su rfce and Borehol e Geophysi cal Methods i n Groundwater I nvest i gat i ons , Nat i on a l Water Wel l Associ at i on , Feb . 12- 14 , 1985, Fort Wort h , Texas . NWWA Abst ract wi th Prog rams .

102

Gi l keson , R . H . and P . C . Hei gol d . 1985 . App l i cati on of Su rface Geophysi cs to Eva l uat i on of Regi onal Groundwater Resou rces ( Abst ract ) . 1985 North­Cent ral Meet i ng of the Geo l ogi cal Soci ety of Ameri ca , Ap ri l 25-26 , 1985 , De Kal b , I l l i noi s . GSA Abstracts with Program , vo l . 1 7 , n o . 5 , March 1985 .

Gi l k eson , R . H . , T . H . Larson , and P . c . Hei gol d . 1984 . I ntegrat i on of Su rface Res i st i v i ty and Shal l ow Geothermi c Methods to Defi ne Contami nant Pathways . P roceedi ngs Vol ume of the Conference on Surface and Borehol e Geophysi cal Methods i n Groundwater I nvest i gat i on s , Co-sponsored by the U . S . Envi ronmenta l P rotect i on Agency and the Nat i onal Water Wel l Associ ati on , Feb. 6-9 , 1984 , San Anton i o , Texas .

Hei gol d , P . C . and T . H . La rson . 1985 . Geophysi cal Studi es to Eval uate Potenti al Pathways for the Escape of Contami nants : Sheffi e l d Low- l evel Radi oact i ve Waste Di sposal Faci l i ty . I l l i noi s State Geol ogi cal Su rvey Cont ract/Grant Report . 1 985- 1 , 23 p .

Gi l keson , R . H . , T . H . Larson , and P . C . Hei gol d , 1985 . Defi n i t i on of Contami nant Pathways : An I ntegrated Geophysi cal and Geo l og i cal Study . I l l i noi s State Geo l ogi cal Su rvey Repri nt 1985-G , 15 p .

Gi l k eson , R . H . , P . C . Hei gol d , and D . E . Laymon , 1986 . P ract i cal App l i cati on of Theoret i cal Model s to Magnetometer Su rveys on Hazardou s Waste Di sposal Sites--A Case H i story . Groundwater Moni tori ng Rev i ew , Vol . 6 , No . 1 , Wi nter , p . 54-61 .

103

VI TA

THOMAS J . HI LDENBRAND

PERSONAL

P resent Pos i t i on : Sect i on Chi ef , Cont i nenta l I nteri o r Geophys i cs Sect i on , Branch of Geophysi cs , U . S. Geo l ogi cal Su rvey

Offi ce Phone : ( 303 ) 236- 1204

Offi ce Add ress : Mai l Stop 964 Box 25046 , Denver Federal Center Denve r , Col orado 80225

Home Address : 13966 W. Wa rren Dri ve Lakewood , CO 80228

P l ace of Bi rth : Bi smarck , North Dakot a

Date of B i rth : June 1 2 , 1947

EDUCATI ON

1971 Un i vers i ty of Cal i forni a , Berkel ey ; B . S . , Engi neeri n g , Physi cs/Mat h 1972 Un i vers i ty of Cal i forni a , Berke l ey ; M . S . , Engi neeri n g , Geosci ence/Math 1975 Un i vers i ty of Ca l i forni a , Be rkel ey ; Ph . D . , Engi neeri n g , Geosci ence/

Math

PROFESSI ONAL EXPERI ENCE

1 975-present Geophysi ci st , U . S . Geol ogi cal Su rvey

PROFESSI ONAL ORGANI ZATI ONS

Ameri can Geophy s i cal Un i on Soci ety of Expl orat i on Geophysi c i sts

MAJOR RE SEARCH I NTERESTS

Regi onal Geophy s i c s Tectonophysi cs Mathemati cal Geophysi cs

PUBLI CATI ONS ( 1982-1986 )

Hi l denbrand , T . G . 1982 . Model of the southeastern marg i n of the Mi ss i ss i ppi Val l ey g raben near Memphi s , Tennessee , from the i nterpretat i on of truckmounted magnetometer data : Geol ogy , v. 10, p . 476-480.

Hi l denbrand , T . G . , Kane , M . F . , and Hendri cks , J . D . 1982 . Magnet i c basement i n the upper Mi ss i ss i ppi Embayment regi on--A prel i mi nary report , i n Pak i se r , L . and McKeown , F . , eds . , I nvest i gat i on s of the New

1 04

Madri d , Mi s sou ri , Ea rthquake Reg i on : U . S . Geol ogi cal Su rvey Profess i onal Paper 1 236-E , p . 39-53.

Hi l denbrand , T. G . , Kuck s , R. P . , and Sweeney , R. E. 1982 . A col o red magnet i c-anomaly map comp i l ed from di g i tal data of central U . S . -- l ts maj or feat u re s : U . S . Geol ogi cal Su rvey Geophysi cal I nvest i gat i on s Map , GP-955 , 27 p . of text , sca l e 1 : 2 , 500 , 000 .

Hi l denbrand , T . G . , Si mpson , R . W . , Godson , R . H . , and Kane , M . F . 1982 . Di g i tal col ored res i dual and regi onal Bouguer grav ity maps of . the conte rmi nous U . S . --Wavel ength cut-offs of 250 km and 1000 km : U . S . Geol ogi cal Su rvey Geophysi cal I nvest i gat i ons Map GP-953-A , scal e 1 : 7 , 500 , 000 .

Hi l denbrand , T . G . 1983 . FFTF I L--A fi l teri ng program based on two­d i mensi onal Fou ri er analys i s : U . S . Geol ogi cal Su rvey Open-F i l e Report 83-237 , 60 p .

Hi l denbrand , T . G . , and Kel l e r , G . R . 1983 . Magnet i c and grav i ty feat u res · of western Kentucky--thei r geo l ogi c s i gn i fi cance : U . S . Geo l ogi cal Su rvey Open Fi l e Report 83-164 , 24 p . , 4 p l ates (to be i nc l uded l ater i n a Professi onal Paper ) .

Hi l denbrand , T . G . , and Kuck s , R . P . 1983 . Regi onal magnet i c and grav i ty featu res of the Gi bson Dome area and su rroundi ng reg i o n , Pa radox Basi n , Utah P rel i mi nary report : U . S . Geol ogi ca l Su rvey Open-F i l e Report 83359 , 50 p . , 3 p l ates .

Hi l denbrand , T . G . , Kuck s , R . P . , and u pward ext rapol ated grav i ty data P rofi l i ng Terra i n System ( APTS) : Report 84-775 .

Hanna , W . F . 1984 . Groundbased for u se i n testi ng the Ae ri a l

U . S . Geo l ogi cal Su rvey Open-Fi l e

Hi l denbrand , T . G . 1985 . Magnet i c terranes i n cent ral U . S . determi ned from the i nterp retat i on of d i g i tal dat a , i n Hi nze , W . J . ed . , The uti l i ty of regi onal gravi ty and magnet i c anoma ly map s : Soci ety of Exp l o rat i on Geol ogi sts Speci al Vol ume , p . 248-266 .

Hi l denbrand , T . G . 1985 . Ri ft structures of the Mi s s i ss i ppi Embayment : J ou rnal of Geophysi cal Research , v . 90 , n o . B14 , p . 1 2 , 607- 1 2 , 622 .

Hi l denbrand , T . G . , and Kuck s , R . P . 1985 . Mode l of the geothermal system i n southwestern South Dakota from grav i ty and aeromagnet i c stud i es , i n Hi n ze , W . J . , The ut i l i ty of regi onal gravi ty and magnet i c anomal y maps : Soci ety o f Exp l orat i on Geophysi c i st s speci a l vol ume , p . 233-247 .

Hi l denbrand , T . G . , Rodgers , A . M . , O l i ve r , H . W . , Ha rsen , s . C . , Nak at a , J . N . and Ca rr , M . D . 1986 . Grav i ty , aeromagnet i c , terrai n , contemporary sei smi c i ty , and quaternary fau l t maps , Southern Great Bas i n , i n Ca r r , M . D . , Yucca Mountai n Meet i ng P roceedi ngs : U . S . Geol ogi cal Su rvey Ci rcu l ar , sca l e 1 : 2 , 500 ,000 , 20 p . text .

1 05

V ITA

WI LLI AM J . HI NZE

PERSONAL

P resent . Posi t i on : Professor of Geophysi cs , Pu rdue Uni versi ty

Offi ce Phone : ( 31 7 ) 494-3259

Offi ce Address : Depa rtment of Geosc i ences Pu rdue Un i vers i ty West Lafayette , I N 47907

Home Add ress : 30 B rook Hol l ow West Lafayette , I N 47906

P l ace of B i rth : Wi scons i n

Date of B i rth : J u l y 30 , 1930

EDUCATI ON

1951 Un i vers i ty of Wi scon s i n ; BS , Geol ogy 1957 Un i vers i ty of Wi scons i n ; Ph . D . , Geol ogy and Physi cs

PROFESSI ONAL EXPERI ENCE

1972-p resent

1 985

1958-1972 1 958 1953-58

P rofessor of Geophysi cs , Geosci ences Department , Pu rdue Uni vers i ty

Vi s i t i n g P rofessor of Geophysi cs , Un i versite of Lausanne , Swi tzerl and

Ass i stant to Ful l P rofessor , Mi chi gan State Uni versi ty Staff Geophysi c i st , Jones & Laugh l i n Steel Company Resea rch Geophysi ci st , U . S . Army Engi neer Research and Dev ­

el opment Laboratory

PROFESSI O NAL ACTI VI TI ES ( 1980-Present )

Chai rman of the Nat i onal Magnet i c Anomaly Map Commi ttee Co-chai rman of the North Ameri can Magnet i c Anomal y Map Commi ttee Reporter to the U . S . Geodynami cs Commi ttee for Geophysi cal Data Past-Chai rman of the Geophysi cs Di v i s i on of the Geol ogi cal Soci ety of

Ameri ca Membe r of the Nat i onal Academy of Sci ence Geophys i ca l Oata and Publ i c

Pol i cy Panel Cont i nental Sci enti fi c Dri l l i ng Commi ttee Panel on Basement and Deep Basi ns of the Cont i nental Sci ent i fi c Dri l l i ng

Commi ttee

106

Vi ce-Chai rman of the I AGA Work i ng Group on Magnet i c Anomal i es Associ ate Edi tor for Potent i a l F i e l ds of " Geophysi c s " Sci ence Steeri n g Panel for t h e Geopotent i a l Resea rch Mi s s i on Magnet i c F i e l d Study Group of the U . S. Nat i onal Aeronaut i cs and Space

Admi ni strat i on Chai rman of the Extern a l Rev i ew Commi ttee for Potent i a l Fi e l ds for

Geo l og i cal Pu rposes of the Nat i onal Geophysi cal Data Center

MAJOR RESEARCH I NTERESTS

App l i ed geophysi cs as appl i ed to pet rol eum, mi neral and engi nee ri n g exp l ora­t i on , geophysi cal studi es of the geol ogy of basement rocks and the geo­dynami cs of p l ate i nteri o rs

PUBLI CATI ONS - Refereed Art i c l es s i nce 1978

w ith R . H. McCa l l i ster and N. Z. Boctor . 1978 . Pet rol ogy of the Spi l it i c Rocks from the Mi ch i gan Bas i n Deep Dri l l Hol e , J ou r . Geophy s . Res . , 83 , p . 5825-5831 .

wi t h J . W . Bradl ey and A . R . Brown . 1978 . Gravi meter Su rvey i n the Mi chi gan Bas i n Deep Boreho l e , J ou r . Geophy s . Res . , 83 , p. 5864-5868.

Grav i ty Anomal i es . 1978 . McGraw-Hi l l Yearbook of Sci ence and Technol ogy , p . 2 1 1-214 .

wi t h R . D . Regan . 1978 . Theoret i cal Transforms of the Grav i ty Anoma l i es of Two I dea l i zed Bodi e s , Geophy s i c s , 43 , p . 631-633.

w ith J . S . Kl asne r , R. J . Wol d , L . O . Bacon , and N. W . O ' Hara . 197 9 . Bouguer Grav i ty Anomaly Map o f Northern Mi chi gan-Lake Superi or Regi on s , U . S . Geol . Su rv . GP-930 .

Cont i nental Magnet i c Anomal i es . 1979 . Revi ews of Geophys . and Space Physi cs , 1 7 , p . 257-273.

U . S . Nat i onal Magnet i c Anoma ly Su rvey Speci fi cat i ons Work shop Report . 1979 . Geophysi c s , 44 , p . 991-996 .

Pro b l ems for Exp l orat i on Geophysi cs - Book Revi ew . 1979 . EO S , Trans . AGU , 60, p . 149 .

wi t h L . W . Brai l e , G . R . Kel l e r , and E . G . Li d i ak . 1980 . Mode l s for Mi dcont i nent Tecton i sm , i n "Conti nental Tecton i cs " , Nat i onal Academy of Sci ence-Nat i onal Research Counci l , spec i a l pub l i cat i on Stud i es i n Geophysi cs , p . 73-83.

wi t h N . W. O ' Hra . 1980 . Regi onal Basement Geo l o gy of lake Hu ron , Geol . Soc . Am . Bu l l . , 9 1 , p . 348-358.

w ith V . w. Chand l e r , J . s. Kosk i , and L. W. Bra i l e . 1981 . Ana lysi s of Mu l t i -sou rce G rav i ty and Magnet i c Anomaly Data Sets by Mov i ng-Wi ndow App l i cat i on s of Poi sson ' s Theorem , Geophys i cs , 46 , p . 30-39 .

107

with R . R. B. von F rese , L. W . B rai l e , and A. J . Luca . 1981 . Spheri cal ­Eart h G ravi ty and Magnet i c Anomaly Model i ng by Gau ss-Legendre Quadrat u re I ntegrat i on , J . Geophysi cs , 49 , p . 234-242 .

wi th N . W . O ' Hra , M . S . Reford , and J . G . Tanne r . 1981 . No rth Ameri can Grav i ty and Magnet i c Anomaly Work shop s , Geophys i cs , 46 , p. 1 6 1 1 - 16 1 7 .

wi th L . W . Brai l e , G . R . Kel l er , and E . G . Li d i ak . 1982 . The Northeast Extensi on of the New Madri d Fau l t Zon e , U . S . Geol . Surv . Prof. Paper 1236 .

with R . J . Wol d and N . W . O ' Ha ra . 1982 . Gravi ty and Magnet i c Anomaly Studi es of Lake Superi or , Geol . Soc . Am . Memoi r 156 , Geol ogy and Tectoni cs of the Lake Supe ri or Basi n , p. 203-22 2 .

w i t h V . W . Chand l e r , P . L . Bowman , and N . W . O ' Hara . 1982 . Long-Wavel en gth Grav i ty and Magnet i c Anomal i es of the Lake Superi or Reg i on , Geol . Soc . Am . Memoi r 156 , Geol ogy and Tectoni cs of the Lake Supe ri or Basi n , p . 223-238 .

wi th R . J . Wol d . 1q82 . I nt roduct i on to Geol ogy and Tecton i cs of the Lake Superi or Basi n , Geo l . Soc . Am . Memoi r 1 56 , p. 1-4 .

with R . J . Wol d . 1982 . Lake Superi or Basi n Geol ogy and Tectoni cs -Overvi ew and Maj or Unsol ved Probl ems , Geol . Soc . Am . Memoi r 1 5 6 , Geol ogy and Tecton i cs o f the Lake Superi or Ba si n , p . 273-280 .

w i th R . R . B . von F rese and L . W . B rai l e . 1982 . Regi onal North Ameri can Grav i ty and Magnet i c Anomaly Correl at i on s , Geophy s . J . R. Astr . Soc . , 69 , p . 745-761 .

wi th J . L . Sexton , R . R . B . von Frese and L . W . Brai l e . 1982 . Long­Wave l ength Aeromagnet i c Anomaly Map of t he Contermi nous U . S . A . , Geol ogy , 1 0 , p . 364-369 .

w ith R . R . B . von Frese , J . L . Sexton and L . W . Brai l e . 1982 . Ve ri fi cat i on of the Crustal Component i n Sate l l i te Magnet i c Dat a , Geophy s . Res . Lett . , 9 , p . 293-295 .

w ith R . R . B . von Frese , M . B . Longacre , L . W . Brai l e , E . G . Li d i ak and G . R . Kel l er . 1982 . Regi onal Magnet i c and Grav i ty Anoma l i es of South Ame ri ca , Geophys . Res . Lett . , 9, p. 314-317 .

wi th M . B . Longacre and R . R . B . von F rese . 1982 . A Satel l i te Magnet i c Mode l of Northeastern South Ame ri can Aul acogen s , Geophys . Res . Lett . , 9 , p . 318-321 .

w ith L . W . Brai l e , G . R . Kel l e r , and E . G . L i d i ak . 1982 . An Anci ent Ri ft Compl ex and i ts Rel at i on to Contemporary Sei smi c i ty i n the New Madri d Sei smi c Zone , Tectoni c s , 1 , p . 225-237 .

w i th R . R . B . von F rese and L . W . B rai l e . 1982 . Spheri cal Earth Grav i ty and Magnet i c Anomal y Ana lys i s by Equ i val ent Poi nt Sou rce I nversi on , Earth P l anet . Sci . Lett . , 53, p . 69-83 .

1 08

Physi cal P ri nci p l es of Expl orat i on Methods by A . E . Beck - Book Revi ew. 1982 . EOS , Trans , AGU , 6 3 , p . 1224 .

w ith R . J . Wol d , Ed i tors , Geol ogy and Tectoni cs of the Lake Superi or Basi n . 1982 . Geol . Soc . Am . Memoi r 156 , 280 p .

w ith G . R . Kel l e r , E . G . Li d i ak and L . W . B rai l e . 1982. The Rol e of Ri ft i ng i n the Tecton i c Devel opment of the Mi dcont i nent , U . S . A . , Tectonophys i cs , 94 , p . 391 -412 .

wi th L . W . Brai l e , J . L . Sexton , G . R . Kel l er and E . G . Li d i ak . 1982 . Sei smi c i ty and Tectoni cs of the Mi dcont i nent U n i ted States , P ro c . of the 3rd Conference on Sei smi c Mi croregi onal i zat i on .

with M . S. Coates , B . C . Hai mson , and W . R . Van Schmu s . 1983. I nt roduct i on to the I l l i noi s Deep Hol e Proj ect , J ou r . Geophys . Res • • , 88 , p . 7267-7275 .

with O . W . Ai ken and G . R . Kel l e r . 1983 . Geol ogi cal Si gn i f i cance of Su rface Grav i ty Measu rements i n the Vi ci n i ty of t he I l l i noi s Deep Dri l l Hol es , Jou r . Geophy s . Res . , 88 , p . 7307-7314 .

Towa rd a Nat i onal Magnet i c Anomaly Data Base . 1983 . P roc . Aeromagnet i c Data Work shop , Nat i onal Geophysi cal Data Center , NOAA , p . 33-36 .

with W . Harri son , D . Edgar , A . Van Lui k , L . Brai l e , J . Ka l l i okoski , H . Pfannkuch , H . Wri ght , J r . , M . Ti ssue and M . Sood . 1983 . Geol ogy , Hyd rol ogy , and Mi neral Resou rces of C rysta l l i ne Rock Areas of t he Lake Superi or Regi on , U n i ted St ates , Argonne Nat i onal Laboratory Envi ronmental Sci ences Report 1 34 , 384 pp .

wi th E . G . L i d i ak , G . R . Kel l e r , J . E . Reed , L . W . Brai l e and R . W . J ohnson . 1985. Geo l og i c s i gn i fi cance of reg i onal g rav i ty and magnet i c anomal i es i n the east-cent ral mi dcont i nent s i n , W . J . Hi nze ( ed . ) , The Ut i l i ty of Regi onal Grav i ty and Magnet i c Anomaly Maps , Soci ety of Exp l orat i on Geophysi ci sts , p . 287-307 .

wi th I . Zi et z . 1985. The compos i te magnet i c anomaly map o f the Contermi nous U . S . , i n W. J . Hi nze ( ed . ) , The Ut i l i ty of Regi onal Grav i ty and MagnetiC-Anomaly Maps , Soci ety of Expl orat i on Geophysi ci sts , p . 1-24 .

w i t h G . R . Kel l e r , R . A . Smi th and C . L . V . Ai ken . 1985 . Regi onal grav i ty and magneti c study of west Texa s , i n W . J . Hi nze ( ed . ) , The Ut i l i ty of Regi ona 1 Grav i ty and Magnet i c Anomaly Maps , Soc i ety of Exp l orat i on Geophysi ci st s , p . 198-212 .

w ith C . C . Schnetz l er , P . T . Tayl o r , R . A . Langel and J . D . Phi l l i ps . 1985. Compari son between the recent U . S. compos i te magneti c and Magsat anoma ly data , Jou r . Geophy s . Res . , 90 , p . 2543-2548 .

with W . R . Van Schmu s . 1985. The mi dcont i nent ri ft system , Ann . Rev . E a rth and P l anetary Sci ences , 13 , p . 345-384 .

109

wi th R. O l i ver ( eds . ) . 1985 . Potent i al Fi el ds i n Rugged Topography , I nst i tute of Geophysi cs Bu l l . 7 , Un i v . of Lausanne , Swi t zer l and , 201 p .

w ith R . R . B . von F rese , R . O l i v i e r and C . R . Bent l ey . 1986 . Regi onal magnet i c anomaly const rai nts on cont i nental breakup , Geo l ogy , 14, p . 68-7 1 .

wi th J . L . Sexton , L . W . Brai l e and M . J . Campbel l . 1986 . Sei smi c refl ect i on profi l i ng studi es of a buri ed P recambri an ri ft beneath the Wabas h Val l ey Fau l t Zone , Geophysi cs , ( i n press ) .

wi th L . W . B ra i l e , J . L . Sexton , G . R . Kel l er and E . G . Li d i a k . 1986 . Tecton i c devel opment of the New Mad ri d Ri ft Comp l ex , Mi ss i ss i pp i Embayment , North Ameri ca , Tectonophysi cs , ( i n p ress ) .

w ith L . W . Brai l e . 1986 . Geophysi cal aspect s of the craton , submi tted to GSA-ONAG vol ume , The Mi dconti nent Provi nce : U n i ted States , ( i n p ress ) .

wi th R . R . B . von F rese , R . O l i vi er and C . R . Bent l ey . 1986 . Sate l l i te magnet i c anoma l i es and cont i nental reconstruct i on s , AGU Monog raph ( i n press ) .

w ith J . R . Ri dgway . 1986 . Magsat sca l a r anomaly map of South Ameri ca , Geophysi c s , ( i n p ress ) .

wi t h R . O l i v i er . 1986 . Potent i al fi e l ds i n rugged topography , The Leadi n g Edge o f Exp l o rat i on , 5 , ( i n p ress ) .

1 10

V ITA

G . R . KELLER

PERSONAL

Present Pos i t i on : Profess o r of Geophys i cs , Un i ve rs i ty of Texas at El Paso

Offi ce Phone : ( 915 ) 747-5501

Offi ce Add res s : Depa rtment of Geol ogi cal Sc i ences Un i vers i ty of Texas at El Paso El Paso , Texas 79968

Horne Add ress : 6632 Mesa Grande El Pas o , Te xas 799 1 2

Pl ace o f Bi rth : Mu skogee , Okl ahoma

Date of Bi rth : Ap r i l 17 , 1946

EDUCATION

1968 Texas Tech Un i ve rs i ty ; BS ( Mathemat i cs , wi th Honors ) 1969 Texas Tech Un i vers i ty ; MS { Geophys i c s ) 1973 Texas Tech Uni ve rs i ty ; Ph . D . { Geop hys i cs )

PROFESSI ONAL EXPERI ENCE

9/ 1982-p resent

1 0/ 8 1-present

10/ 80-p resent 7/ 76-present 9/ 7 8-8/82 9/ 76-5/82

7 / 7 6-8/ 7 8 8/ 73-7 / 7 6 7 / 7 2-8/ 7 3

9/ 7 0-5/ 7 1 6/70-8/ 70

Profes s o r of Geophys i cs , Depa rtment of Geol ogi c al Sci ences , Un i vers i ty of Texas at El Paso Ch ai rma n , Depa rtment of Geol ogi cal Sc i ences , Un i ve rs i ty of Texas at El Paso Di rector , J. 14 . Mi l l er Memo ri al Geophys i cal Laboratory Consul tant , Los Al amos Sci ent i f i c Laboratory As soc i ate Professor, Un i ve rs i ty of Te xas at El Paso Di rector , Sei smol ogi cal Observatory , Un i vers i ty of Texas at El Paso As s i stant Profes sor , Un i ve rs i ty of Texas at El Pas o As s i stant Professor , Un i vers i ty o f Kentucky Re search As soci ate/Resea rch As s i stant Professor , Un i ve rs i ty of Utah I n s t ructor, Texas Tech Un i vers i ty Resea rch As s i stant , Mob i l Resea rch and Devel opment

PROFESS IONAL ORGAN IZAT IONS

Ame ri can Geophys i cal Un i on , Royal Ast ronomi ca l Soc i ety ( Fel l ow ) , Geol og i cal Soc i ety of Ame ri ca , Sei smol ogi cal Soc i ety of Ameri c a , Soci ety of Expl orat i on Geophys i ci st s , Ame ri can As soci at i on of Pet rol eum Geol ogi sts , Ame ri can Ass oc­i at i on for the Advancement of Sci ence , El Paso Geol ogi cal Soci ety , West Texas Geol ogi cal Soci ety , Pe rmi an Bas i n Geophysi cal Soc i ety , New Mexi co Geol ogi cal Soc i ety , Texas Acarlemy of Sci ence , Eu ropean Geophys i cal Soci ety , Geol ogi cal Soc i ety of Af ri ca

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HONORARY SOC I ETIES

S i gma Xi , Si gma Gamma Eps i l on , Ph i Kappa Ph i , Kappa Mu Ep s i l on

AWARDS

A . I . Levorsen Memo ri al Awa rd -- Ame ri can As soc i at i on of Pet rol eum Geol ogi st s , 1976

Paper p resented at AAPG meet i ng p i cked for at " Best of AAPG 11 sess i on at SEG convent i on , 1980

Di rected Thes i s ( by R . L . Cou l t r i p ) chosen as most out stand i ng wi t h i n the Uni vers i ty , 1983

Di st i ngu i shed Ac h i evement Awa rd i n Res ea rch , U .T . El Paso , 1985

MAJOR RESEARCH I NTERESTS

Cru stal sei smi c stud i es Tecton i cs of r i fts

PUBL ICAT I ONS

Shu rbet , D. H . , and G. R . Kel l e r . 1972. Gene rat i on of rni c ros e i sms by atmosphe r ic coupl i ng : Texas Jou r . Sci . , v . 23 , p . 471 -47 8 .

Kel l er , G . R . and S . E . Cebu l l . 1973. Pl ate t ecton i cs a n d the Ou ach i ta System i n Texas , Okl ahoma and Arkansas : Geol . Soc . Am . Bu l l . , v . 84 , p . 1659- 1666 .

Cebu l l , S . E . and G . R . Kel l er . 1973. Rep ly to the d i scu s s i on on " Pl ate Tecton i cs and the Ouach i ta System i n Texas , Okl ahoma and Arkansas" by Gri ffi n : Geol . Soc . Am . Bu l l . , v . 85 , p . 147- 148.

Brai l e , L. W . , G . R. Kel l er , and W . J . Peepl es . 1974 . Invers i on of g rav i ty data for two-di mens i onal dens i ty di stri but i on s : J . Geophys . Re s . , v . 79 , p . 2017-2021 .

Brai l e , L . W . , R . B . Smi t h , G . R . Kel l er , R . M . Wel ch , and R . P . Meyer . 1974 . Crustal st ruct u re across the Wasat ch Front from detai l ed sei smic refract i on stud i es : J . Geophys . Res . , v . 79 , p . 2669-267 7 .

Kel l e r , G . R . , R . B . Smi th , and L . W . Bra i l e . 1975 . C rustal st ructu re al ong the Great Ba s i n-Col orado Pl ateau t rans i ti on from sei smi c refract i on stud i es : J . Geophys . Res . , v . 80 , p . 1083- 1098 .

Brai l e , L . W . and G . R . Kel l er . 197 5 . F i ne st ructu re o f t.he c rust i nferred from l i near i nvers i on of Rayl ei gh wave d i s pers i on : Sei smol . Soc . Am . Bul l . , v . 6 5 , p . 7 1-83.

Kel l e r, G . R . and D. H . Sh u rbet . 1975. Cru stal st ruct u re of t he Texas Gu l f Coastal Pl a i n : Geol . Soc . Am . Bu l l . , v . 86 , p . 807-810 .

Smi th , R . B . , L . W . Bra i l e , and G . R . Kel l e r. 1975. Cru stal l ow vel oci ty l aye rs : Poss i b l e effect of h i gh temperatu res over a mantl e u pwarp at the Bas i n Ra nge-Col o rado Pl ateau t ran s i t i on : Earth and Pl aneta ry Sc i . Ltrs . , v . 28, p . 197-204 .

112

Cebu l l , s . E . , D . H. Shu rbet , G. R . Kel l e r , and L. R . Russel l . 1976 . Pos s i b l e rol e of t rans form faul t s i n the devel opment of appa rent offsets i n the Ouach i ta-Southern Appal achi an tecton i c bel t : J . Geol . , v . 84 , p . 107 - 1 14.

Shu rbet , D . H . , G . R . Kel l e r , and J . P . Frei ss . 1976 . Reman ent magnet i zat i on from compa ri son of g rav i ty and magnet i c anomal i es : Geophysi cs , v . 4 1 , p . 56-66 .

Kel l e r, G . R . and H . E . Ad ams . 1976 . A reconna i ssance mi c roearthquake su rvey of the San Lu i s Val l ey , So�thern Col orado : Sei smal . Soc . Am . Bu l l . , v . 66 , p . 345-347 .

Kel l e r , G . R . , R . B . Smi th , L . W . Brai l e , R . Hea ney , and D . H . Sh u rbet . 1976 . Upper cru stal st ruct u re of the eastern Bas i n and Range , northern Co l orado Pl ateau , and Mi ddl e Rocky Mou nta i ns det ermi ned f rom Rayl ei gh wave d i s pers i on : Sei smal . Soc . Am . Bu l l . , v . 66 , p . 869-876 .

Cebu l l , S . E . and G . R . Kel l er . 1976 . Pl atP. t ectoni cs model for the Ouach i ta fol d bel t : Comment : Geol ogy , v . 4 , p . 636-637 .

Lan ge r , C . J . , G . R . Kel l er , and R . B . Smi th . 1979. A st udy of the after­shocks of t he October 1 , 1 972 rnb - 4 . 7 , Heber C i ty , Utah earthquake : _.:!..!:!. Ea rthquakes St ud i es i n Utah , 1850-1978 , A . J . Araba z , R . B . Smi th , and W . O . R i c h i ns ( eds . ) , Un i v . of Utah , p . 383-394.

Amme rman , M . W . and G . R . Kel l e r . 1979 . Del i neat i on of t h e Rome Trough i n eastern Kentucky with g rav i ty and deep d ri l l i ng dat a : Am . As soc . Pet rol . Geol . Bu l l . , v . 63 , p . 341- 353.

Kel l e r , G. R . , L. W . B rai l e , and J . W . Sch l u e . 1979. Regi onal c rustal st ructu re of the Ri o Grande ri ft f rom su rface wave d i s pers i on measu re­ment s : i n R i o Grande Ri ft : Tecton i cs and Magmat i sm , R . E . R i ecker (ed . ) , Arri:" Geophys . Un i on , Spec . Pub . , p . 1 1 5-126 .

Ol sen , D . H . , G . R . Kel l e r , and J . N . Stewa rt . 1979 . Crustal st ruct u re a l ong the Ri o Grande ri ft f rom sei smi c refract i on p rofi l es : i n Ri o Grande Ri ft : Tectoni cs and Magrnat i sm , R . E . R i ecker ( ed . ) , A""iil:'" Geophys . Un i on , Spec. Pu b . , p . 127-143.

Bl ack , D . F . B . , G . R . Kel l e r , and R . W . Johnson . 1979 . Basement cont rol of exposed geol ogi cal featu res i n cent ral Kentucky as i nfe r red f rom tecton i c , aeromagnet i c and g rav i ty data : i n Proceed i ngs 2nd Internati onal Co n f . on Ba sement Tect on i cs ,-r;f. H . Pol wysock i and J . L . Earl e ( eds . ) , Basement Tectoni cs Comm . , Denve r , p . 1-9 .

Kel l er , G . R . , L . W . Brai l e , and P . Mo rga n . 1979 . Crustal st ru ct u re , geophys i cal model s and contempora ry tecton i srn o f the Col orado Pl ateau : Tectonophys i cs , v . 61 , p . 131-147 .

Kel l er , G . R . , R . F . Roy , N . Duet , R . G . Graham , and B . Tayl o r . 197 9 . A regi onal g ravi ty study of Trans -Pecos Texas : Un i v . of Texas , Bu r . Econ . Geol . , Gu i debook 1 9 , A . W . Wal ton and C . D . Hen ry ( eds ) . , p . 28-32.

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Tayl o r , B . , R . F . Roy , and G . R . Kel l e r . 1979 . Geothermi cs i n Trans-Pecos Texa s : Prel imi nary fi ndi ngs : Geot herma l Res . Cou n . Tra ns . , v . 3 , p . 7 13-7 1 5 .

Hi nze , W . J . , L . W . Brai l e , G . R . Kel l er , and E . G . Li d i ak . for mi dcont i nent tectoni sm , i n Cont i nental Tecton i cs : Stud i es i n Geophys i cs , p . 73-83 .

1980. Model s Nat . Acad . Sci . ,

Vel d hu i s , J . H . , and G . R . Kel l e r . 1980 . An i nt eg rated geol ogi cal and geophys i cal study of the Sa l t Fal t Bas i n : New Mex . Geol . Soc . , 31st Gui deboo k , p. 141-150.

Kel l e r , G . R . , J . M . Hi l l s , and R . Djeddi . 1980. A regi onal geol ogi cal and geophys i cal study of the Del awa re Bas i n : New Mex . Geol . Soc . , 31st Gu i debook , p . 105-1 1 1 .

Mraz , J . R . , and G . R . Kel l er. 1980 . St ruct ure of the Pres i d i o Bo l s on area , Texas , i nterpreted from grav i ty data : Bur . Econ . Geol . , Un i v . of Texa s , Geo l ogi ca Ci rcu l a r , 80- 13 , 20 p .

Kel l e r , G . R . , and D . R . Russel l . 1980 . A c rustal st ruct u re study of the Af ri can cont i nent : An nal s Geol . Su rvey of Egypt , v . 10 , p . 9 55-960.

Soderberg , R. K . , and G . R. Kel l er . 1981 . Geophys i cal ev i dence for deep bas i n i n western Kentucky : Am. As soc . Pet rol . Geol . Bu l l . , v . 6 5 , p . 226-234.

Gi s h , D. M . , G. R . Kel l e r, and M. L. Sbar . 1981. A refract i on study of deep crustal st ruct u re of the Bas i n and Range-Col orado Pl ateau t ransi t i on zone i n eastern Ar i zona : J . Geophys . Res . , v . 86 , p . 6029-6038 .

Kel l er , G . R . , M . L . Amme rma n , and A . E . Bl and . 1981 . A geophys i cal and t ecton i c study of cent ral and easte rn Kent ucky wi th emphas i s on the Rome Trough : Kentucky Geol ogi cal Su rvey , Spec. Pub . 4 , p . 41-48.

Morgan , P . , G. R. Kel l er , and F. K . Bou l os . 1981 . Earthquake cannons i n the Egypt i an eastern desert : Se i sma l . Soc . Am . Bul l . , v . 7 1 , p . 551-554.

S i nno, Y . A . , G . R . Kel l er, and M . L . Sba r. 1981. A c rustal sei smi c refracti on study i n west -cent ral Ari zona : J . Geophys . Res . , v . 86 , p . 5023-5038.

Kel l er, G. R . and others . 1981. A regi onal geop hys i cal study of southe rn Trans-Pecos Texas : Permi an Bas i n Sec . SEPM , Gu i debook , p . 102- 109 .

Lance, J . O . and G . R . Kel l er . 198 1 . A regi onal gravi ty study of s outhwestern New Mex i co and adj acent areas : El Paso Geol . Soc . Gu i debook , p . 86-90.

Ai ken , C . L . V . , D . L . Ga rvey , G . R . Kel l e r , P . C . Goodel l , and M . de l a Fuente Duch . 1981 . A reg i onal geophys i cal study of the C h i huahua C i ty

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a rea, Mexi co : Arne r . As soc . Pet ro l . Geol . , St ud i es i n Geol . , n o . 13 , p . 31 1-328 .

Ke l l er , G . R . , J . M . Kruge r , C . L . V . Ai ken , and K . C . Nei l sen . 1982. Reg i onal g rav i ty anomal i es i n the Ouach i ta Mountai ns a rea : Geol . Soc • .

Am . Gu i <iehook , South-Ce nt . Sect . Mtg . , p . 1 3- 1 6 .

Hi nze , W . J . , R . R . B . von F rese , M . B . Longacre, L . W . Brai l e , E . G . Li d i ak , and G . R . Kel l e r . 1982. Regi onal magnet i c and g ravi ty anomal i es of South Ame ri ca : Geophys . Res . Lt rs . , v . 9 , p . 314-317 .

B ra i l e , L . W . , G . R . Kel l er , W . J . Hi nze , and E . G . Li d i ak . 1982. An anci ent ri ft compl ex and i ts rel ati on to contempo ra ry sei smi c i ty i n t he New Mad ri d sei smi c zon e : Tecton i cs , v . 1 , p . 225-237.

Kel l er , G. R . , A. E. Bl and , and J. K . Greenberg . 1982 . Ev i dence for a maj or l ate Precamb ri an tecton i c event ( r i ft i ng? ) i n the eastern mi dcont i nent reg i on , U . S . A . : Tecton i cs , v . 1 , p. 213-223 .

Rus sel l , D . R . , G . R . Kel l e r, and L . W . Bra i l e . 1 982. A techn i que t o determi ne t h e th ree d i mens i onal att i t ude and t rue vel oci ty o f a refractor : Geophys i cs , v . 47 , p . 1331- 1334.

Brai l e , L .W . , W. J . Hi nze, J . L. Sexton , G. R. Kel l er , and E. G. Li d i ak . 1982. Sei smi c i ty and tectoni cs of the mi dcont i nent Un i ted St ates : Proceed i ngs 3rd I nternat i onal Conf . on Mi crozonat i on , p . 25-38.

Lance , J. O . , J r . , G. R . Kel l e r , and C . L. V . Ai ken . 1982 . A regi onal geophys i cal st udy of the western overth rust bel t in southwestern New Mexi co, West Texas , and n o rthern Ch i huah ua : Rocky Mt . As soc . Geol . , Cord i l l eran Th rust Bel t Vol . , p . 467-473 .

Au st i n , C . B . and G . R . Kel l er . 1982 . A c rustal st ruct u re study of the Mi s s i s s i ppi Embayment : U . S . Geol . Su rv . , Prof . Paper , n o . 1236 G , p . 81-83.

Brai l e , L. W . , W. J. Hi nze , G . R . Kel l e r , and E . G. Li d i ak . 1982 . The northeastern exten s i on of the new Mad rid Fau l t Zone : U . S . Geol . Surv . , Prof. Paper , no. 1236 L , p . 1 73-184.

Ma rston , R. A . , R. L. Hoffe r , P. C. Goodel l , and G. R. Kel l er . 1 982 . An i nteg rated Lansat-geol ogi cal -geophys i cal -geochemi cal su rvey for mi neral occu rrence in west-cent ral Ut ah : Proceed i ngs i nternat i onal sympos i um on remote sen s i ng of the envi ron�ent , Second Th emat i c Conference , Remote Sens i ng for Expl orat i on Geol ogy : Ft . Wo rth , TX , p . 843-851 .

Kel l er , G . R . , E . G . Li di ak , W . J . Hi nze , and L . W . Brai l e . 1983 . The rol e of ri ft i ng i n the tectoni c devel opment of the mi dcont i nent , USA : Tectonophys i cs , v . 94 , p . 391-412 .

Pi ngi tore , N . E . , J . S . Schmi dt , and G . R . Kel l er . 1983 . Rad i omet r i c map of the Di abl o pl atform and adj oi n i ng a rea : Su rface u ran i um acti vi ty : Pe rmi an Bas i n Sec . SEPM , Pub . 83-22 , p . 166- 169 .

l IB

Kel l er , G . R . , J . H . Ve l dhu i s , and D . W . Powe rs . 1983. An analy s i s of g rav i ty and magnet i c anomal i es i n the Di ahl o p l ateau a rea : Perm i an Ba s i n Sec . SEPM , Pub . 83-22 , p . 1 52- 165 .

Ai ken , O . W . , G . R . Kel l e r , and W . J . Hi nze . 1983 . Geol ogi cal s i gn i fi cance of su rface g ravi ty measu rements i n the vi c i n i ty of the I l l i no i s deep dr i l l hol e : Jou r . Geophys . Res . , v . 88 , p . 7307-7314 .

Ai ken , C . L . V . , J . Grotte , G . R . Kel l er , and W . M . Voi ght . 1983. Gravi ty anomal i es i n northern Chi huahua : El Paso Geol . Soc . Gui debook , 1983 Fi e l d Conf . , p . 1 20-128.

Kel l er , G . R . 1983. Bouguer grav i ty anoma ly map of the Socorro regi on : New Mex i co Geol . Soc . , 34th Gu i debook , p . 96 .

Kel l er , G . R . , L . Co rdel l , G . H . Davi s , W . J . Peepl es , and G . Wh i te . 1984 . A geophys i cal study of t h e San Lu i s Bas i n : New Mexi co Geol . So c . , 35th Gu i debook , p . 51-57 .

Co rdel l , L . and G . R . Kel l e r . 1984. Reg i onal struct u ral t rends i n fe rred from g rav i ty and aeromagnet i c data i n the New Mexi co-Col orado border regi on : New Mexi co Geol . Soc . , 35th Gu i debook , p . 2 1-23 ( 2 pl ates ) .

Kel l er , G . R . , W . J . Peepl e5 , and C . L . V . Ai ken . 1984 . Grav i ty anomal i es i n northern Ch i huahua : An u pdate : West Texas Geo l . Pub . 84-80 , p . 206-2 1 2 .

Kel l er , G . R . and E . A . Dean . 1984 . Fo rwa rd to Se i smi c Waves : An i sot rophy , fl u i d satu rat i on , and s l ant i ng i nte rfaces : Col o rado Sch ool of Mi nes Qu a rt . , v . 7 9 , p . v-vi .

L i d i a k , E . G . , W . J . Hi nze , G . R . Kel l e r , J . E . Reed , L . W . Brai l e , and R . W . Johnson . 1985. Geol ogi cal s i gn i f i cance of regi onal g ravi ty and magnet i c anomal i es i n the east-cent ral mi dcont i nent : Soc . Exp l o rat i on Geophys i c i sts , Spec . Pub . , Ut i l i ty of Regi onal Gravi ty and Ma gnet i c Anomaly Maps , p . 287- 307 .

Kel l er , G . R . , R . A . Smi t h , W . J . Hi nze , and C . L . V . Ai ken . 1985. A regi onal g rav i ty and magnet i c st udy of West Texas : Soc . Expl orat i on Geophys i c i sts , Spec . Pub . , Ut i l i ty of Regi onal Gravi ty and Magnet i c Anomaly Maps , p . 198-21 2 .

Ke l l er , G . R . and W . J . Peepl es . 1985. Regi onal g ravi ty and ae romagnet i c anomal i es i n West Texas : West Texas Geol . Soc . , Pub . 85-81 , p . 101-105 .

Sul eima n , A . S . and G . R . Kel l er . 1985. A geophys i cal study of basement st ruct u re in northeastern New Mexi co : New Mex i co Geol . Soc . , 36th Gu i debook , p . 1 53-159.

Ke l l er , G . R . 1986. Int roduct i on to s pec i al s ect i on on t he Ri o Grande r i ft : J . Geophys . Res . , v . 91 , p. 6142 .

S i nno, J . A . , P . H . Dagget t , G . R . Kel l er , P . Mo rgan , and s . H. Ha rde r. 1 986 . Crustal st ruct u re of the Southern R i o Grande ri ft determi ned

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f rom se i smi c refract i on p rofi l i ng : J . Geophys . Res . , v . 91 , p . 6 143-6 1 5 6 .

Daggett , P . H . , G . R . Kel l er , P . Mo rgan , a n d C . Wen . the R i o Grande ri ft f rom g rav i ty i nterpretat i on : 9 1 , p . 6 1 57-6167 .

1986. St ruct u re of J . Geophys . Res . , v .

S i nno , Y . A . and G . R . Kel l er . 1986 . A Ray l e i gh wave d i spers i on study between El Paso , Texas and Al buque rque , New Mexi co : J . Geophys . Res . , v . 9 1 , p . 6168-61 74.

Ol sen , K . H . , L. W . Brai l e , J. N. St ewa rt , C . R . Daudt , G . R . Kel l e r , L . A. Ankeny , and J. J . Wol ff . 1985 . Jemez Mountai ns vol can i c fi el d , New Mex i co : Ti me term i nterp retat i on o f t h e CARDEX sei smi c exp e ri ment and compar i son wi th Bouguer g ravi ty : J . Geophys . Res . , v . 91 , p . 6 1 75-6 187 .

Kruger , J . R . and G . R . Kel l er . 1986 . Interp retat i on of cru stal st ructu re from regi onal g rav i ty anomal i es , Ouach i ta Mountai ns a rea and adj acent Gu l f coastal pl ai n : AAPG Bu l l . , v . 7 0 , i n p ress .

B ra i l e , L . W . , W . J . Hi n ze , J . L . Sext on , G . R . Kel l er and E . G . Li d i ak . 1986 . Tecton i c Devel opment of the New Mad ri d Se i smi c zon e : Tectonophys i cs , i n p ress .

Kruge r , J . M . and G . R . Kel l er . 1986 . Regi onal gravi ty anomal i es i n the Ouach i ta Mount ai ns a rea : Arkansas Geol . Comm . , i n p res s .

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V I TA

EDWARD G . L I D IAK

PERSONAL

Present Pos i t i on : Ch a i rma n and Profes sor , Depa rtme nt of Geol ogy and Pl anetary Sci ence , Un i vers i ty of Pi ttsbu rgh , Pi ttsbu rgh , PA

Offi ce Phone : ( 4 12) 624-4702

Offi ce Add ress : Depa rtment of Geol ogy and Pl anet a ry Sci ence Un i vers i ty of Pi ttsbu rgh 1299 Fox Chapel Road Pi ttsbu rgh , Pen nsyl van i a 15238

Pl ace of Bi rt h : LaGrange , Texas

Date of Bi rth : Ma rch 1 4 , 1934

EDUCATION

1956 Ri ce Un i ve rs i ty , Houston , Texas ; BA ( Geol ogy ) 1960 R i ce Un i vers i ty , Houston , Texas ; MA , ( Geol ogy ) 1963 Ri ce Un i ve rs i ty , Hou ston , Texas ; Ph . D . ( Geol ogy )

PROFESS IONAL EXPER IENCE

1980-present : Ch ai rman and P rofes sor , Depa rtment of Geol ogy and Pl anetary Sc i ence , Un i ve rs i ty of Pi ttsbu rgh , P i tt s b u rg h , PA 15260 .

1 971- 1979 : Chai rman and As soc i ate Professor, Un i vers i ty of Pi ttsbu rgh . 1971-1974 : U . S . Geol ogi cal Su rvey , Part -t ime WAE appoi ntment 1966�197 1 : As soci ate Professor, Uni vers i ty o f Pi ttsbu rgh 196 5-1967 : U . S . Geol ogi cal Survey , Pa rt-time WAE appoi ntment 1964- 1966: As s i stant Profes sor, Un i ve rs i ty of Pi ttsbu rgh 1962-1964: Research Sc i ent i st IV, C rustal Stud i es Laboratory , The

Un i vers i ty of Texas , Au st i n . Pa rt i c i pated i n study of geol ogy and geoch ronol ogy of buri ed basement rocks of Un ited States

1958-1962: Teach i ng As s i stant/ Fel l ow , Department of Geol ogy , Ri ce Un i vers i ty , Houston , Texas

1960( Summe r ) : Ma ri ne Geophysi cal Exp l o rat i on Comp any , Hou ston. I nterp retat i on of shal l ow sei smic records .

1956-19 58 : U . S . Ma ri ne Co rps Reserve , Act i ve Duty 1956 ( Part - Humbl e Resea rch Center , Hou ston , Laborat o ry Ass i st ant i n

t i me ) pal eomagnet i sm ·

PROFESS I ONAL ORGAN I ZAT I ONS

Ame ri can Geophys i cal Uni on Geochemi cal Soc i ety Geol ogi cal Soc i ety of Ame ri ca ( Fel l ow )

MAJ OR RESEARCH INTERESTS

I gneous and Metamo rph i c Pet rol ogy Precambri an Geol ogy Tecton i cs

PUBL I CATI ONS

118

Bra i l e , L . W . , W . J . Hi nze , J . L . Sexton , G . R . Kel l er , and E . G . Li d i a k . 1982 . A tecton i c study of the extens i on of the New Mad r irl fau l t zone near i t s i ntersect i on w ith the 38th p a ral l e l l i neament . U . S . Nucl ear Regul atory Commi ss i on Report NUREG/CR-2741 , 70 p .

Pi l ant , W . L . , and E . G . Li rli ak . 1982 . Fract u rP. zones i n the basement and exposed c rystal l i ne rocks and pos s i bl e exp res s i ons i n the overl yi ng and adjacent s edi mentary rocks of the Val l ey and Ri dge and Pl ateau Prov i nces : Appal achi an Bas i n Indust ri al As soci ates , Sp ri ng Meet i n g , Knoxvi l l e , Ten nessee , p . P l-P24.

Li d i ak , E. G . 1982 . Basement rocks o f t h e ma i n i nteri or ba s i ns o f the mi d­cont i nent . Un i v . of Mi s so u ri at Rol l a Ju rnal , no . 3 , p . 5-24 .

Brai l e , L . W . , W . J . Hi nze , G . R . Kel l e r , and E . G . Li d i ak . 1982. The northeastern exten s i on of the New Mad r id se i sm i c zone . U . S . Geol . Survey Prof . Paper 1236-L , p . 17 5- 184.

Den i son , R. E . , E. G . Li d i ak , M. E. Bi ckford , and E. B. Ki svars anyi . 1 983. Geol ogy and geoch ronol ogy of Precamb ri an rocks i n the cent ral i nteri or regi on of the Un i ted States . U . S . Geol . Su rvey , Prof. Paper 1241-C , p . Cl-C20.

Ke l l e r , G . R . , E . G . Li d i ak , W . J . Hi nze , and L . W . Bra i l e . 1983. The rol e of ri ft i ng i n the tectoni c devel opment of the mi dcont i nent , U .S . A . , Tectonophysi cs , 94 , 39 1-412.

Li d i ak , E . G . , anrl R . E . Den i son . 1983. Pet rol ogy and phys i cal p ropert i es of g rani tes from the I l l i noi s deep hol e i n Stephenson County . Jou r . Geophys . Res . , v . 88, p . 7 287-7299.

Brai l e , L. W . , W . J. Hi nze , V. L. Sexton , G. R. Kel l e r , and E . G. L i d i ak . 1982. Sei smi c i ty anrl tecton i cs of t h e mi dcon t i nent Un i ted St ates . Th i rd I nternati onal Earthquake Mi crozonati on Conference Proceed i ngs , v . 1 , p . 25-38.

Hi nze , W . J . , ( . W . Brai l e , G . R . Kel l e r , and E . G . Li d i ak � 1983. Geophys i cal -geol ogi cal stud i es of pos s i bl e extens i ons of the New Mad r id faul t zone -- An nual repo rt fo r 1982. U . S . Nuc l ea r Regu l ato ry Commi s s i on Report NUREG/ CR-3174, v . 1 , 87 p .

Li k i ak , E . G . , W . J . Hi nze , G . R . Kel l er , J . E . Reed , L . W . Brai l e , and R . W . Johnson . 1984 . Geol og i c s i gn i fi cance of regi onal g rav i ty and magnet i c anomal i es i n t he east-central rni dcont inent . Geophys i cs ( i n p ress ) .

1 1 9

Brai l e , L . W . , W . J . Hi nze , G . R . Kel l er , a n d E . G . Li d i ak . 1984. Tectoni c devel opment of the New Mad rid sei smi c zon e . Tectonophys i cs ( i n p ress } .

ABSTRACTS

Li d i ak , E . G . 1964. B u r i ed basement rock s of Neb raska : Prel i mi nary repo rt ( abs . } : Geol . Soc . Ameri ca Spec . Paper 76 , 101- 102 .

Li d i ak , E . G . 1964. Co r rel at i on of basement rocks wi t h the mi d-cont i nent g rav i ty anomaly i n Neb raska and Kansas ( abs . } : Soc . Expl orat i on Geophys i ci st s Yea rbook 1 964 , p . 207 .

L i d i a k , E . G . 1968. Va ri ati ons i n cal c-al kal i c and thol ei i t i c vol can i sm i n the Pue rto Ri can orogen ( abs . } , i n Abst racts o f Papers , 5t h Ca ri bbean Geol . Con f . , Vi rg i n I s l ands , JulY-1-5 , 1968 : Mayaguez , P. R . , Puerto Ri co Un i v . , p . 45-46 .

Li d i ak , E . G . 1969 . Ru r i ed Precamb ri an rock s of Neb raska ( abs . } : Geol . Soc . Ameri ca Abs . wi th P rograms 1969, pt . 2 , p . 17 .

Li d i ak , E . G . , and R . E . Den i son . 1969 . Buri ed Precamb ri an rocks of eastern Kansas ( abs . } : Geol . Soc . Ameri ca Ahs . wi th Programs 1969 , pt . 2 , p . 17-18 .

Li d i ak , E . G . 1970. Aug i tes and hornbl endes f rom cal c-al k a l i ne vol cani c rocks . Puerto R i co ( abs . } : Ameri can Mi n e ral ogi st , �' 302 .

Li d i ak , E . G . 197 1 . Spati al and temporal va ri at i ons of potas s i um i n vol can i c rocks of Puerto Ri co ( abs . } : i n Abst racts of Papers , 6th Cari bbean Geol . Conf . , Ma rga r i t a , Venezuel a , Ju ly 6-12 .

L i d i a k , E . G . 197 1 . Va ri ati ons i n cal c-al kal i c and thol ei i t i c vol can i sm i n the Puerto Ri can o rogen ( abs . } : Trans . Fi fth Cari b . Geol . Con f . , Geol . Bul l • .!!Q_. _?_, Queens Col l ege Press , New Yo rk , p . 154 .

Li d i ak , E . G� , and M . P . Ca rl s on . 1972. Chemi cal and modal compos i t i on s of the Precamb ri an g ran i t i c rocks of Nebraska ( ab s . } : Geol . Soc . Ameri ca Programs i_ ( 5 } , p . 333.

Gu pt a , A. K . , and E . G . L id i ak . 197 2 . Ph ase rel at i ons i n the system d i ops i de-nephel i ne-l euci te ( abs . } : 24th I nte rnat i onal Geol . Congres s ­Abst ract s , Sect . 1 4 , p . 419-420.

L i d i a k , E. G . 1973. Rel ati on of magnet i c anomal i es and rock types for sel ected a reas i n the U .S . ( abs . } : EOS , 54 , 246 .

L i d i a k , E . G . 1973 . Magnet i c cha racte ri st i cs of the cont i nental crust ( abs . } : Second Genera 1 Sci ent i fi c As semb l y , Kyoto , Japan . IAGA Bul 1 •

l,!, p . 306 .

Li d i ak , E . G . 1974. Interp retat i on of ae romagnet i c l i neame nts between l at i tudes 37°N anrl 38°N i n the eastern and cent ral Un i ted States ( a bs . } : G .S . A . Pen rose Con f . on Geol ogi c i nterpretat i on of Ma gnet i c Data , Reston , VA . Apri l 14-20 .

120

Haa rr , D . T . , and E . G . Li d i ak . 1976. Mag net i c i nvest i gat i ons of the Catoct i n Format i on i n Ma ryl and ( abs . ) : Geol . Soc . Ameri ca Abst racts wi t h Programs .§. ( 2 ) , p . 187 .

-- --

Tzeng , S . Y . and E . G . Li d i ak . 1976. Low-g rade metamorph i sm i n east­cent ral Puerto R i co ( abs . ) : Geol . Soc . Amer i ca Abstracts wi th Programs , ,§_ ( 6 ) , p . 1 149- 1 1 50-. - -

Haa rr , D . L . , and E . G . Li d i a k . 197 7 . Evi dence for two magnet i ca l ly d i st inct u n i ts wi t h i n the Catocti n Format i on i n Ma ryl and ( abs . ) : EOS , �' p . 375.

Li d i ak , E . G . , and I . Zi etz . 1977 . Ae romagnet i c l i neaments a l ong t he 38th paral l el i n the eastern and cent ral Un i ted States ( abs . ) : Geol . Soc . Ame ri ca Abst racts with P rograms , i_ ( 5 ) , p . 622.

-- --

Den i son , R E . , E . G . Li d i ak , M . E . B i c k ford , and E . B . Ki svarsanyi . 1977 . P recamb ri an geol ogy and geoch ronol ogy of t h e central i nteri o r p rovi nce ( abs . ) : Geol . Soc . Ameri ca Abst racts w ith Programs , i_, p . 947-948 .

Li d i ak , E . G. , G . R . Kel l er , L . W . Brai l e , a nd W . J . Hi nze . 1978. Ri ft i ng i n t he mi dcont i nent { abs . ) : EOS , 59 , p . 227-228 .

Kel l er , G . R . , W . J . Hi nze, L . W . Brai l e , and E . G . Li d i ak . 1978. A tectoni c overv i ew of the cent ral mi dconti nent ( abs . ) : EOS , �' p . 230 .

Li d i ak , E . G . , 1978. Pet rol ogy and mi neral ogy of t he vol cani c rocks of Puerto Ri co ( abs . ) : EOS , 59 , p . 403 .

Hi nze , W . J . , L . W . Brai l e , G . R . Kel l er , and E . G . Li d i ak . 1978. Regi onal tectoni cs of the cent ral mi dconti nent , Un i ted States { abs . ) : Geol . Soc . Arle ri ca Abst racts wi th Programs , 1.Q., p . 422 .

L i d i a k , E . G . , G . R . Kel l e r , L . W . Brai l e , and W . J . H i nze . 1978. R i ft i ng i n t he mi dcont i nent , U . S . A . ( abs . ) : Internati onal Sympos i um on the Ri o Grande Ri ft , Santa Fe, New Mexi co, Octobe r , 1978.

Kel l er , G. R . , W. J. Hi nze , J. E . Reed , L. W . Brai l e , and E . G. Li d i ak . 1978 . Regi onal grav i ty of t he Wabash R i ver val l ey faul t system - New Mad ri d sei smi c zone ( abs . ) : 1978 Arn . Geophys . Un i on Mi dwest Meet i ng .

H i n ze , W . J . , N . R . Ri chardson , L . W . Brai l e , and E . G . Li d i a k . 1979 . Ri ng magnet i c anomal i es as i nd i cators of baseme nt cal deras i n the cent ral provi nce ( abs . ) : Geol . Soc . Arn . Abstracts wi th Programs , v . 1 1 , p . 149.

Brai l e , L . W . , W. J . Hi nze , G . R . Kel l er , and E . G . Li d i ak . the northeastern extent of the New Mad r id fau l t zone? Soc . Arn . Abst racts wi th Programs , vol . 1 1 , p . 145.

1979. What i s ( abs . ) : Geo l •

Hi nze , W . J . , L . W . Brai l e , G . R . Kel l e r , and E . G . Li d i a k . 1 97 9 . Regi onal tectoni cs of the cent ral mi dcont i nent , Un i ted St ates ( abs . ) : Geol . Soc . Arn . Abst racts wi th P rograms , vol . 10 , p . 422 .

121

Hi nze , W . J . , N . R . Ri cha rds on , L . W . Brai l e , and E . G . Li d i a k . 1979 . Ri n g magnet i c anomal i es i n the cent ral mi dcont i nent ( abs . ) : 1 979 Am . Geophys .

Li d i ak , E . G . 1982. Bas ement rocks i n the ma i n i nte r i o r bas i ns of the Un i ted States ( abs . ) : Fou rth Annual NASA Geodynami cs Prog ram Rev i ew , Goddard Space Fl i ght Center.

Yu a n , D . W . , E . G . Li d i ak , M. B. Lon gac re , and G. R . Kel l er . 1982. Rel at i on of Magsat anomal i es to the mai n tecton i c provi nces of South Ame ri ca { abs . ) : Soc . Expl . Geophys . Tech n i cal P rog ram Abs t ract s and B i og raphi es , p . 274-276 .

Li d i ak , E . G . , and W . J . Hi nze . 1982. Re l at i on between d ri l l -hol e bas ement l i thol ogy and magnet i c and g rav i ty anomal i es i n t he east-cent ral mi d­cont i nent ( abs . ) : Soc . Exp l o . Geophys . Techn i cal Prog ram Abst racts and Bi ograph i es , p. 258-260 .

Hi nze , W . J . , E . G . Li d i ak , J . E . Reed , G . R . Kel l e r , L . W . Bra i l e , and R . W . Johnson . 1982 . Geol ogi c s i gn i fi cance of reg i onal g rav i ty and magnet i c anomal i es i n the east -cent ral mi dcont i nent { a bs . ) : Soc . Expl . Geophys . Techni cal Prog ram Abst racts and B i og raph i es , p . 264-266 .

B i kennan , M . , E . G . Li d i ak , and R . Lewi s . 1982 . K-Ar ages of p h l ogop i te f rom mi ca peri dot i te , Omaha o i l fi el d i nt rus i on , Gal l at i n County , southern I l l i noi s { a bs . ) : Geol . Soc . Am . Ab st ract s wi th Programs , v . 14 , p . 255.

Cec i , V . M . , and . E . G . Li d i ak . 1983. Ch emi cal compos i t i on of P recambr i a n rocks from the subsu rface o f Oh i o ( ahs . ) : Geol . Soc . Am . Abst racts wi th Programs , v . 1 5 , p . 216 .

Li d i ak , E . G . , D . t� . Yuan , W . J . Hi nze , M . B . 1983. Correl at i on of tecton i c provi nces Ca ri bbean with Mags at anomal i es { abs . ) : ence, Aug . 1983 , Ca rtagena , Col omb i a .

Lo ngacre , and G . R . Kel l e r � of South Ameri ca and the 10th Ca rri bean Geol . Con fer-

Hi nze , W . J . , L . W . Bra i l e , E . G . Li d i ak , and G . R . Kel l e r . 1983. Model s for mi dcont i nent tecton i sm : the l ast 1600 mi l l i on yea rs { abs . ) : Geol . Soc . Am . Abst racts wi th Programs , v . 1 5 , p . 596 .

--

Li d i a k , E . G . , V . M . Ceci , W . J . Hi nze , and J . P . McPhee . 1983 . Tecton i c framework of basement rock s i n the eastern mi dcont i nent ( a bs . ) : Geol . Soc . Am . Abst racts with Programs , v . 1 5 , p . 627 .

Hi nz e , W . J . , R . W . Van Sc hmu s and E . G . Li di a k . 1984. Ta rget i n g deep sci ent i fi c d ri l l i ng i n the mi dcont i nent { abs . ) : Geol . Soc . Ame r i ca Abst ract s wi th Programs , v . 16 , p . 146.

Kel l e r , G. R . , L. W . Brai l e , W . J. Hi nze , and E. G. L i d i a k . 1984 . Tectoni c s i gn i fi cance of mi dcont i nent sei smi c i ty { a bs . ) : Geol . Soc . Ameri ca Abst racts wi th P rograms , v . 16 , p . 149 .

122

Li d i ak , E . G . , and W . J . Hi nze . 1984. Specu l ati ons on r i ft zones and basal t i c magmati sm i n the Precambri an of the east-cent ral mi dconti nent ( abs . ) : Geol . Soc . Ame ri ca Abst ract s wi t h Programs , v . 1 6 , p . 1 52 .

Mar i o , A . , and E . G . L i d i a k . 1 984 . Pet rol ogy of t he E l l i cott C i ty g ranod i orite ( abs . ) : Geol . Soc . Ame r i ca Abst racts wi t h Programs , v . 1 6 , p . 178.

Li d i ak , E . G . and W . J . Hi nze . 1984. Ta rget i ng s ci ent i fi c d ri l l i ng i n the eastern mi dcont i nent ( abs . ) : Am . Geophys . Un i on EOS , v . 65 , p . 1 101 .

123

V I TA

LYLE D . MCG I NN I S

PERSONAL

P resent Pos i t i on : Sen i or Sc i ent i st and Ma nage r , Argonne Nat i onal Laboratory

Offi ce Phone : ( 31 2 ) 972-8722

Offi ce Add res s : Manage r , Geol ogy and Geophysi cs Sect i on Energy and Envi ronmental Systems Di v i s i on ( EES-36 2 ) Argonne Nat i onal Laborato ry 9700 S . Cass Avenue

. Argonne , IL 60439

Pl ace of Bi rth : Appl eton , Wi scons i n

Date of Bi rth : Ma rch 5 , 1931

EDUCATI ON

1954 St . No rbert Col l ege , DePere, W i s cons i n ; B S , Phy s i cs 1960 St . Lou i s Un i vers i ty , St . Lou i s , Mi s so u ri ; M . Sc . , Geophys i cs 1965 Un i vers i ty of I l l i noi s , Urbana , I L ; Ph . D . , Geo l ogy

PROFESS I ONAL EXPERI ENCE

1985-p resent

1983- 1985

1 980-83

1 976-80 1975-76

1972-75 1967-72 1966-67

1 960-66

1 957-59 1954-55

Sen i o r Sc i ent i st and Manage r , Geol ogy and Geophys i cs Sect i on , Energy and Envi ronmental Systems , Argonne Nat i onal Lahoratory

Professor and Ch a i rman , Dep a rtment of Geol ogy , Lou i s i an a State Un i vers i ty , Baton Rouge , Lou i s i ana

Profes sor and Ch a i rma n , Dep a rtment of Geol ogy , No rt hern I l l i no i s Uni ve rs i ty ( N I U ) , DeKa l b , I l l i noi s

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Afgh ani stan Geophys i ci st , I l l i no i s St ate Geol og i ca l Su rvey , Urbana , I l l i noi s Geophys i c i st , I GY , Ant a rct i ca Geophys i c i st , Carter Oi l Company , Rocky Mou nta i ns a rea

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Ame ri can As soc i at i on for the Adva ncement of Sci ence Ameri can Assoc i at i on of Pet rol eum Geol og i sts Ame ri can Geophysi cal Un i on Ameri can Pol ar Soci ety Geol ogi cal Soc i ety of Ame ri ca ( Fel l ow ) Sei smol og i cal Soci ety o f Amer i ca

124

S i gma X i Soc i ety of Exp l o rat i on Geop hysi ci sts

MAJOR RESEARCH I NTERESTS

Sol i d earth geophys i cs , exp l orati on geophys i cs , tecton i cs Tecton i cs of the Transant a rct i c Mounta i n s , tecton i cs of the Cont i nental I nteri or U . S . , pol a r geophysi cs

PUBL I CAT IONS : Refereed Art i cl es

Mento, D . J . , C . P . Ervi n , and L . D . McGi nn i s , Pe ri odi c Ene rgy Rel ease i n the New Mad rid Sei sm i c Zone , Sei smol ogi cal Soci ety of Ameri ca ( i n p ress ) .

Ervi n , C . P . , and L . D . McGi nni s . 1986. Temporal Va r i at i ons i n the Gravi t at i onal F i e l d of the Mi s s i s s i ppi Embayment , Jou rnal of Geophys i cal Res ea rch , 9 1 , B9 , pp . 9 16 1- 9168.

K im , Y . , L . D . McGi n n i s and R . H . Rowen . 1986 . The Vi ctoria Land Bas i n : Part of an Ext ended Crustal Comp l ex Between East and West Antarcti ca , Ameri can Geophys i cal Un i on , Geodynami cs Se ri es , V . 14 , M . Ba razangi and L . Brown , eds . , pp . 323-330 .

McGi nn i s , L . D . , R . H . Bowen , J . M . Er i ckso n , B . J . Al l red , and J . L . Krea111e r . 1985 . East -West Anta rct i c Boundary i n McMu rdo Sound , Tectonop hy s i cs , 1 14: 341- 356 .

McGi n n i s , L . D . , D . D . Wi l so n , W . J . Bu rdel i k , and T . H . La rson . 1983. C rust and Upper Mantl e Study in McMu rdo Sound , i n Antarcti c Geosci ences , P . R . Jones , ed . , Au stral i an Nat i ona l Academy of Sc i ences , pp . 204-208 .

Di l l on , W . P . , and L . D . Mc Gi n n i s . 1983. Bas ement St ructure I nd i cated by Sei smi c-Refract i on Measu rements Offs hore from South Carol i na and Adj acent Areas , i n St udi es Rel ated to the Ch a rl eston , Sout h Ca rol i na , Earthquake of 1886 - Tecton i cs and Sei smi c i ty , G . S . John , ed . , U . S . Geol ogi cal Su rvey Prof . Paper 1313 , p p . 1-7 .

E rv i n , C . P . , L . D . McGi nni s , R . M . Ot i s , and M . L . Ha l l . 1983 . Automated An alys i s of Ma ri ne Refract i on Dat a : A Computer Al gorithm , Geophys i cs , 48( 5 ) : 582-589 .

McGi nn i s , L . D � , D . R . Os by , and F . A . Kohou t . 1982. Pal eohyd rogeol ogy I nferred from Sal i n i ty Measu rements on Dry Val l ey Dri l l i ng P roj ect Co res f rom Tayl or Val l ey , Antarct i ca , i n C . Craddock , ed . , Ant a rt i c Geosci ences , Un i vers i ty of Wi scons i n P ress , pp . 1 1 33- 1 1 39 .

Pede rs on , D . R . , G . E . Montgome ry , L . D . Mc Gi n n i s , C . P . Ervi n , a nd H . K . Wong . 1981 . Aeromagnet i c Su rvey of Ross I s l and , McMu rdo Sound , and t he Dry Val l eys , i n Dry Val l ey Dri l l i ng Proj ect , Arrle r i can Geophys . Un i on , Antarct i c Research Seri es , L . D . McGi n n i s , ed . , 33 : 7-26 .

125

McGi n n i s , L . D . , J. S . St uckl es s , D. R . Os by , a nd P. R . Kyl e . 198 1 . Gamma ­ray , Sal i n i ty , and El ect r i c Logs of DVDP Borehol es , i n D ry Val l ey Dri l l i ng Project , Ame r i can Geophys . Un i on , Ant a rct i c Resea rch Se ri es , L . D . McGi nn i s , ed . , 33 : 95-108 .

McGi nn i s , L . D . 198 1 . Se i smi c Ref racti on St udy i n Western McMu rdo Sou nd , i n D ry Val l ey Dri l l i ng Proj ect , Ameri can Geophys . Un i on , Antart i c Resea rch Se ri es , L . D . McGi n n i s , ed . , 33 : 27-36.

McGi nn i s , L . D . , and C. P . E rvi n . 1980 . Reply to comment on Regi onal Free Ai r Gravi ty Anomal i es and Tecton i c Obs e rvat i ons i n the Un i ted St ates , by G . D . Ga rl and , Jou ranl of Geophys . Resea rch , 85 ( 89 ) : 4882 .

McGi nni s , L . D . 1979 . Th e D ry Val l ey Dri l l i ng Project - An Exerci se i n I nternat i onal Coope rat i on , i n the Proc . of the DVDP Semi nar I I I on Dry Val l ey Dri l l i ng Project , 1978, Memo i rs , Natl . I nst . of Pol a r Re sea rch , T . Nagat a , ed . , Spec i al I ssue 13 , pp . 1-21 .

McGi n n i s , L . D . Cool i ng Mechani sms and Effect s on Mantl e Con vect i on Beneat h Anta rct i ca , i n the Geo rge Bu rke Maxey vol . of Hyd rol ogy , W . Back and D . A . Stephens on , eds . , Jou rnal o f Hyd rol ogy , 43 : 265-286 .

McGi nn i s , L . D . , and R . M . Ot i s . 1979 . Refract i on Vel oc i t i es on Georges Bank , Geophys i cs , 44( 6 ) : 1022- 1033.

McGi nni s , L. D . , M . G. Wol f , J. J . Kohsmann , and C. P. Ervi n . 1979 . Regi ona l Free-Ai r Gravi ty An oma l i es and Tecton i c Obs e rvat i ons i n the Un i ted States , Journal of Geophys . Res . , ( B2 ) : 591 -601 .

McGi nni s , L . D . , and R . M . Ot i s . 197 7 . Comp res s i onal Vel oci t i es f roM Mu l t i channel Refract i on Arri val s on Geo rges Bank , Proc . of Northwest At l ant i c , Offshore Tech nol ogy Con f . , May 2- 5 , 197 7 , Hou ston , Texas , Paper 2989 , 4 : 227-236 .

McGi n n i s , L . D . , P . C . He i gol d , C . P . Ervi n , and M . Hei dari . 1976. Th e Grav i ty Fi el d and Tecton i cs of I l l i no i s , I l l i no i s State Geol . Su rvey , Ci rc. 494 , 28 p p .

E rvi n . C . P . , and L . D . McGi nn i s . 1975 . Reel foot Ri ft : React i vated Precu rsor to the M i ss i s s i ppi Embayment , Geol . Soc . Am . Bu l l . , 86 : 1287-1295.

McGi n n i s , L . D . , T . To ri i , and R . Cl a rk . 1975 . Ant a rt i c Dry Val l ey Dri l l i ng Proj ect : Report on Semi nar I , EOS -- Transacti ons of Am . Geophys . Uni on , 56( 4 ) : 2 17 -220.

McGi nni s , L. D . , and C . P. Ervi n . 1974. Ea rthquakes and Bl ock Tecton i cs i n the I l l i no i s Bas i n , Geol ogy , 2 : ( 10 ) : 5 17-519 .

McGi nni s , L . D . , and P . C . He i gol d . 1974. A Se i smi c Ref racti on Su rvey of the Me rodos i a Channel Area of Northwestern I l l i no i s , I l l i no i s State Geol . Su rvey , C i rc . 488 , 19 pp .

Mudrey , M . G . , and L . D . McGi nn i s . 1974 . Anta rct i c Geol og i c Hi story I nvest i gated by Di amond Dri l l i ng , Geol ogy , 2 ( 6 ) : 291-294.

126

McGi n n i s , L. D . , K . Nakao� and C. C. Cl ark . 1973. Geophys i cal Ident i fi cat i on of Froz en and Unfrozen Grou nd , Antarct i ca , In Permafrost , 2nd I ntern . Conf . , Yakutsk , S i beri a , Nat i onal Academy of Sc i ences , pp . 136-146 .

Mud rey , M . G . , S . B . Treves , P . R . Kyl e , and L . D . Mc Gi n n i s . 1973. Frozen J i gsaw Puzzl e : F i rst Bed rock Cori ng i n Antarct i ca , Geot imes , 18( 1 1 ) : 14-17 .

McGi n n i s , L . D . , and T . E . Jensen . 197 1 . Pe rma frost-Hyd rogeol ogi c Reg i me i n Two Ice-free Val l eys , Antarct i ca , from E l ect ri cal Depth Sound i n g , Jou r . Quaternary Re search , 1 ( 3 ) : 2 53-263.

McGi n n i s , L . D . 1971 . Grav ity F i el ds and Tectoni cs i n the Hi ndu Kus h , Jou r . Gph . Re s . , 76( 8 ) : 1894- 1904.

McGi nn i s , L. D. 1970. Tecton i cs and the Gravi ty Fi el d i n the Conti nental I nteri o r , Jou r. Geophys . Res . , 7 5 : 317 -332 .

McG i n n i s , L . D . 1968 . Gl aci at i on as a Pos s i bl e Cause of Mi neral Depos i t i on , Econ . Geol . , 6 3 : 390-400 .

McGi nn i s , L . D . 1968. Gl aci al Crustal Bend i ng , Geol . Soc . of Ame ri ca Bu l l . , 79 : 769- 776 .

McGi n n i s , L . D . 1966. Cru stal Tecton i cs and Precambri an Basement i n Northeastern I l l i noi s , I l l i noi s State Geol ogi cal Su rvey , Report of I nvesti gat i ons 219 , 29 pp .

McGi nn i s , L . D . 1966 . Gravi ty Base St at i on Netwo rk i n I l l i noi s , I l l i no i s State Geol ogi cal Survey , C i rcul ar 398 , 18 pp .

He i gol d , P . C . , L . D . Mc Gi nn i s , and R . H . Howa rd . 1964. Geol ogi c S i g n i fi cance of the Gravi ty F i e l d i n the De-Wi tt-Mclean Cou nty Area , I l l i noi s , I l l i noi s St ate Geol ogi cal Su rvey , Ci rcu l a r 369 , 16 p p .

McGi nn i s , L . D . , and J . C . Bradbu ry . 1 964. Aeromagnet i c Study of the Ha rdi n Cou nty Area , I l l i noi s , I l l i noi s St ate Geol ogi cal Su rvey , C i rcu l ar 363, 12 pp .

McGi nn i s , L . D . , J . P . Kempton , and P . C . He i gol d . 1963. Rel at i ons hi p of Grav i ty Anomal i es to a Dri ft -fi l l ed Bedrock Val l ey System i n No rthern I l l i noi s , I l l i no i s St ate Geol ogi cal Su rvey , Ci rcu l ar 354 , 23 pp .

McGi nn i s , L . D . 1963. Earthquakes and Crustal Movement as Rel ated to Water Load i n the Mi ss i ss i pp i Val l ey Reg i on , I l l i no i s St ate Geol ogi cal Survey , C i rcul ar 344 , 20 pp .

McGi n n i s , L . D . , and P . C . Hei gol d . 196 1 . Reg i onal Maps of Verti cal Magnet i c I ntens i ty in I l l i no i s , I l l i no i s State Geol ogi cal Su rvey , C i rcu l a r 324, 12 pp .

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McGi n n i s , L. D . , and J . P . Kempton . 196 1 . I nteg rated Se i smi c , Res i st i v i ty and Geol og i c Stud i es of Gl aci al Depos i t s , I l l i no i s State Geol ogi cal Su rvey , Ci rcu l a r 323 , 23 p p .

PUBLI CATIONS : Non refereed Art i c l es

Wi l son , D . D . , L . D . McGi nni s , W . J . Bu rdel i k , and T . L . Fa s nacht . 1981 . McMu rdo Sound Upper Crustal Geophys i cs , Anta rct i c Jou r . of the U . S . , 1 6 : 3 1-34.

McGi nn i s , L . D. 1980 . Sei smi c Ref ract i on St udi es i n Western McM u rdo Sound , Antarcti c Jou r . of the U . S . , 15 : 1 1 .

McGi nn i s , L . D . 1979. Artesi an We l l at Don Juan Pond , An t a rct i c Jou r . of the U . S . , 1 5 : 26-27 .

McGi nn i s , L . D . , J . S . St uck l ess , and P . R . Kyl e . 1978. Si g n i f i cance of Gamma- ray , Sal i n i ty , and E l ect ri cal Logs i n DVDP Borehol es , DVDP Bu l l . , No . 8 , pp . 54- 59.

Pederson , D. R . , G. E . Mo ntgome ry , L. D. Mc Gi n n i s , C . P. E rvi n , and H . K . Won g . 1978. Magnet i c Study of Ross I s l and and Tayl or Gl aci er Qu ad rangl es , Antarct i ca . DVDP Bul l . No . 8 , pp . 72-73.

McGi nn i s , L . D. 1978. Po l ar Ground Water - a Thermo-Sal i ne System , Proc . of the 2nd Co l l oqu i um on Pl anetary Wate r and Pol ar Processes , Hanove r , New Hampsh i re , Oct . 16-18 , 1978, U . S . Army Col d Regi ons Research and Engi neeri ng Laboratory , p p . 7-10 .

McGi nni s , L . D . , a nd D . R . Os by . 197 7 . Loggi ng Summa ry of the Dry Val l ey Dri l l i ng Proj ect , Ant . Jou r . of the U . S . , 1 2 ( 4 ) : 1 1 5-117 .

McGi nn i s , L . D . 1975. Dry Val l ey Dri l l i ng Project , 1974-75 , Ant . Jou r . of the U . S . , 1 0 ( 4 ) : 133-137 .

McGi nn i s , L . D . 1974. Dry Val l ey Dri l l i ng Proj ect , 1973-74, Ant . Jou r . of the U . S . , 9 ( 4 ) : 125-127 .

McGi nn i s , L . D . 1973. McMu rdo Sou nd A Key to t he Cenozo i c of Ant a rct i ca , Ant . Jou r . of the U . S . , 8 ( 4 ) : 166- 169.

McGi n n i s , L. D. 1973. Dry Va l l ey Dri l l i ng Project , 1972-1973 , Ant . Jou r . of the U . S . , 8 ( 4 ) : 257 .

Mud rey , M . G . , J r . , N . E . Sh i mp , C . W . Kei gh i n , G . L . Obe rts , a nd L . D . McGi nni s . 1973. Chemi cal Evol ut i on o f Water i n Don Juan Pond , Ant a rct i ca , Ant . Jou r . of the U . S . , 8 ( 4 ) : 1 64-166 .

McGi nn i s , L . D . , T . Torri , and P . N . Webb . 1972 . Dry Val l ey D ri l l i ng Project , Ant . Jou r . of the U . S . , 7 ( 3 ) : 7- 10 .

McGi n n i s , L . D . , and T . E . Jensen . 1971 . E l ect ri cal Depth Soundi n gs i n Anta rct i c Dry Va l l eys , Ant . Jou r . of t he U . S . , 5 : 108.

128

McGi nni s , L . o . 1970. The Bed rock Su rface i n Northeastern I l l i noi s - A Rev i ew , 34th Annual F i el d Tri p , Tri -State Gu i debook , pp . 80-87 .

McGi nn i s , L . D . , and W . W . Dud l ey , J r . 1963. Se i smi c St ud i es of Th ree Areas i n Northern Nevad a , Dese rt Resea rch I nst i tute , Reno , Nevad a , Techni cal Report No . 2 , pp . 25-37 .

Dud l ey , W . W . , J r . , and L . D . Mc Gi nni s . 1962. Se i smi c-Re f ract i on and Ea rth Res i st i v i ty I nvest i gat i on of Hyd rogeol ogi c P robl ems i n the Humbol dt Ri ver Ba s i n , Nevada , Desert Research I n st . , Re no , Nevada , Techni cal Report No . 1, 29 pp .

PUBL I CATI ONS : Abst racts

Ki m , Y . , and L. D. McGi nn i s . 1985 . Synthes i s of Geophys i cal St u d i es i n McMu rdo Sound , Gondwana Conf . , Oh i o State Un i vers i ty , Col umbus , Ohi o .

Mento , D . J . , C . P . Ervi n , and L . D . Mc Gi n n i s . 1985 . Ea rthquak e Peri od i c i t i es i n the New Mad r id Sei smi c Zone , Soc . Exp . Geophys . Ann ual Meet i ng , Was h i ngton , D . C .

Li s l e , D . A . , L . D . Mc Gi nn i s , and C . P . Ervi n . 1985 . Contemporary St ress F i el d s , Anci ent Li thos phe r i c Bl ocks , and Contempora ry Earthquakes . Soc . Exp . Geophys . An nual Meet i n g , Was h i ngt o n , D . C .

McGi n n i s , L . D . , and R . H . Bowen . 1984. Deep Refl ect i on Sei smi c Study on the East-West An tarcti c Bou ndary , I nte rnat i onal Symposi um on Deep St ructure of the Cont i nental Crust : Resul ts f rom Refl ect i on Se i smol ogy , . Co rnel l Uni ve rs i ty , Ith aca , New York , I nst i tute for the Stu�y of Cont i nents , p . 56 .

McG i nni s , L . O . , J . L . Kreame r , and R . H . Bowen . 1983. Twel ve-fol d Sei smi c Refl ect i on Profi l i ng i n McMu rdo Sound , Anta rct i ca , i n p rog ram wi th Abst racts , XVI I I General As sefllb ly of the IUGG , Geophysi cs of the Pol ar Reg i ons , Hambu rg .

Wei , M . H . , and L . D . Mc Gi nn i s . 1982. Mi c rog ravi ty Ch anges i n t he Mi s s i ss i ppi Embayment , Geol . Soc . Am . , North Cent ral Sect i on , Abst racts wi th Prog rams .

McGi n n i s , L . D . , D . D . Wi l son , W . J . Bu rdel i k , and T . H . La rson . 1982 . Crust and Upper Mantl e Study of McMu rdo Sound , SCAR Fou rth Internat i onal Symp . on Ant arct i c Ea rth Sc i ences , Un i vers i ty of Adel ai de , South Aust ral i a .

Wi l s on , D . D . , and L . D . McGi n ni s . 198 1 . Ea st-West Se i smi c P rofi l e of McMu rdo Sound , Ant a rcti ca , EOS , 63 ( 33) : 6 1 5 .

Bu rdel i k , W . J . , and L . D . McGi n n i s . 1981 . Geophys i cal Model o f t h e Cru st i n the McMu rdo Sound Reg i on , EOS , 6 3 ( 33) : 61 5 .

McGi nn i s , L . D . , D . D . Wi l son , and W . J . Bu rdel i k . 1981 . Geop hys i cal Profi l e Across McMu rdo Sound , EOS , Trans . Ameri can Geophys . Un i on , 62( 1 7 ) : 407-408.

129

La rson , T. H . , and L. D . Mc Gi nni s . 1980 . Bas ement St ruct u re i n Western McMu rdo Sound from Reve rsed Sei sm i c Refract i on Profi l es Shot on Sea Ice , EOS , Trans : Arrle ri can Geophys . Un i on , 6 1 ( 48) : 1 194 .

McGi n n i s , L . D . , T . H . La rson , and D . D . W i l son . 1980 . The Transantart i c Faul t Zone , Geol ogi cal Soc i ety o f Ame r i ca , North Cent ral Secti on An nual Meet i ng , Indi ana Uni vers i ty , Abst racts wi th Prog rams , 12 ( 5 ) : 250 .

Mc Gi nn i s , L . D . , T . H . Larson , H . Mi l l er , and D . D . Wi l s on . 1980 . Ev i dence for a Gl aci ated Crystal l i ne Basement and 7 . 5 km/s Refractor in McMu rdo Sou nd , Trans . Am . Geophys . Un i on , EOS , 6 1 : 365 .

McGi nn i s , L . D . 1979 . Caus e , Evi dence and Consequence of Lat i tude­Dependent Ma nt l e Vi scos i ty , Geol . Soc . Am . , An nual Meet i ng , abst racts wi th Prog rams , 1 1 ( 7 ) : 475 .

Powe r , K . M . , and L . D . McGi nn i s . 197 9 . Ene rgy Re l ease Rat es for Earthquakes i n the Mi s s i ss i ppi Ernbayment Reg i on , Am . Geophys . Uni on , EOS , 61 : 48 .

Ervi n , C . P . , R . M . Ot i s , M . L . Ha l l , and L . D . Mc Gi nn i s . 1979 . Al gor ithm for Automated Analys i s of Mari ne Refract i on Dat a , Am . Geophys . Un i on , EOS , 6 1 : 48 .

Mu rphy , C . M . , G . M . Ca rl sen , and L . D . Mc Gi n n i s . 1979 . Gravi ty Changes and Mi c rosei smi c i ty i n the Mi ss i s s i ppi Embayrnent , Arn. Geophys . Un i on , EOS , 6 1 : 48 .

McGi n n i s , L . D . 1979 . Se i smi c Ref ract i on Det ect i on of Su bma ri ne Permaf rost i n McMu rdo Sound , Antarct i ca , EOS , Trans . Am . Geophys . Un i on , 60( 18) : 287-288 .

McGi nn i s , L . D . , J . S . St uck l es s , and P . R . Kyl e . 1978. Si gn i fi cance of Gamma Ray , Sal i n i ty and El ect ri cal Logs i n DVDP Borehol es , in Dry Val l ey Dri l l i ng Project ( DVDP) Semi nar I I I , Japan Nat l . I n st . of Pol ar Research , DVDP Bu l l . No . 8 , p . 54-59 .

Pederson , D . R . , G . E . Mo ntgome ry , L . D . McGi nn i s , C . P . Ervi n and H . K . Wong . 1978. Magnet i c Study of Ross I s l and and Tayl or Gl aci er Qu ad rangl es , An tarct i ca , i n D ry Val l ey Dri l l i ng Project Semi nar I I I , Japan Natl . I nst . of Pol ar Research , DVDP Bu l l . No. 8, pp . 72-73 .

McGi nni s , L . D . 1978. Dry Val l ey Dri l l i ng Project Semi nar I I I , Tokyo , Ant . Jou r . of the U . S . , Vol . 8, No. 4 , p . 30 .

Wol f , M . G . , L . D . McGi n n i s , C . P . Ervi n , and J . J . Kohsma n n . 1978. Tecton i c Impl i cati ons of the Regi onal F ree -a i r Grav i ty Fi el d i n t he Mi d-cont i nent , EOS , 59 : 228.

Hal l , M . L . , and L . D. Mc Gi nn i s . 1977 . Comp ress i onal Vel oci ty Di s t ri but i on on the Atl ant i c Cont i nental Shel f from Mul t i channel Refract i on Arri val s - Ral e i gh Bay to Georges Bank , Am . Geophys . Un i on , An nual Meet i ng , EOS , 58 ( 6 ) : 406 .

130

Os by , D . R . , and L . D . Mc Gi nn i s . 1977 . Pal eohyd rol ogy of Tayl or Val l ey , Antart i ca I nfe rred from Sal i n i ty of Pore Ice i n Dri l l Core , Am . Geophys . Un i on , An nual Meeti ng , EOS , 58( 6 ) : 38 5 .

McGi nn i s , L . C . , G . M . Carl sen , and C . P . Erv i n . 1977 . Seasonal and Long­Te rrn Ch anges i n the Gravi ty F i el d Intens i ty i n the Mi ss i ss i ppi Embayrnent , Am . Geophys . Un i on , Ann ual Meet i n g , EOS , 58( 6 ) : 431 .

Wol f , M . G . , L . D . Mc Gi nni s , C . P . Ervi n , and J . J . Kohs�a n n . 197 7 . Reg i onal Free-ai r Grav i ty and Tectoni c Observt i ons i n the Un i ted St ates , Arn . Geophy s . Un i on , An nual Meet i ng , EOS , 58( 6 ) : 43 1 .

McGi nn i s , L . D . , G . M . Carl sen , C . P . Ervi n . 1977 . Prec i s i on Grav i ty Level i ng St udy i n the Mi ss i s s i ppi Embayment , Geol . Soc . Arn . , No rt h Cent ral Sect i on , Abst racts wi th P rog rams , 9 ( 5 ) : 629 .

McGi n n i s , L . D . , G . M . Ca rl s en , and C . P . Ervi n . 1976 . Preci s i on Gravi ty Level i ng Study i n the M i s s i s s i ppi Ernbayrnent , Geol . Soc . Am . , Abst racts wi t h Prog rams , 9 ( 5 ) : 35 .

McGi n n i s , L . D . 1976 . Appl i cat i on o f t h e Ghyben-Herzherg Pri nci p l e to a n Understand i ng o f the Phys i cal Chem i st ry o f Ross I s l and and New Ha rbor Co re, DVDP Bul l . No . 7 , No rthern I l l . Un i v . , p . 1 1 3-1 1 4 .

McGi nn i s , L . D . 1976 . Sal i n i ty St rat i g raphy o f F rozen Ground i n the D ry Val l eys , Anta rct i ca , A Col l oqu i um on Water i n Pl anet a ry Regol i ths , Dept . of Ea rth Sci ences , Da rtmouth Col l ege , U . S . Army Col d Reg i ons Reseach and En g i nee ri ng Lab . , p . 18-20.

Jackson , J . K . , L. D. McGi nn i s , and M. G . Mud rey , J r . 1975 . Res i st i v i ty and Vel oci ty Measu rements on DVDP Co re from Ross Is l and and Lake Vi d a , Anta rct i ca , DVDP Bu l l . No . 6 , Northern I l l . Un i v . , pp . 10- 1 2 .

Ervi n , C . P . , and L . D . Mc Gi n n i s . 1975 . Re gi onal Cru stal Va ri ati on s i n I l l i noi s , F i rst Annual M i dwestern AGU Meet i ng , Trans . Arn . Geophys . Un i on , 56 ( 9 ) : 602.

Koh srnann , J . , and L . D . Mc Gi n n i s . 1975 . Geop hys i cal Li neaments and Earthquakes Wi t h i n the Northern Mi ss i s s i ppi Embayment , Geol . Soc . Arn . , Southeastern Sect i on , 7 ( 4 ) : 487 .

Ervi n , C . P . , and L . D . Mc Gi nni s . 1975 . Th e Reel foot Ri ft - Re act i vted Precu rsor to the Mi s s i ss i ppi Embayrnent , Geol . Soc . Am . , Southeastern Sect i on , 7 ( 4) : 487 .

McGi nn i s , L . D . , C . C . Cl ark , D . R . Pederson , H . K . Wong , C . P . Ervi n , and G. E. Montgome ry . 1974 . Ae rornagnet i c and Refract i on Sei smi c Stud i es fo r the Dry Val l ey Dri l l i ng Proj ect A Semi n a r I ( Seatt l e ) , NSF-J apan , Soc . for the Promot i on of Sci ence , Quaternary Res . Cente r , Un i v . of Was h i ngton , Seatt l e , May 29-31 .

Ervi n , C . P . , and L . D . McGi nn i s . 1974. Cru sta l Change from Craton to Mi s s i ss i ppi Ernbayrnent Determi ned from Grav i ty F i el ds , Trans . Am . Gph . Un i on , 55 : 436 .

131

McGi n n i s , L . D . , and D . J . Leeds . 1974. Sei smi c i ty of H i gh Grav i ty Gradi ent Regi ons i n the I l l i noi s Bas i n , Trans . Am . Gph . Un i on , Vol . 55 .

McGi n n i s , L . D . , and P . C . Hei gol d . 1973 . Gi ant Gl ac i al Grooves i n the Me redos i a Channel Area , I l l i noi s , Geol . Soc . Am . , 1973 An nual Meet i n g , Abst racts wi th Prog rams , 5 : 731-732 .

McGi n n i s , L . D . 1972. Crustal Tru nct i on Det e rmi ned from Gravi ty Fi e l ds , Geol . Soc . Am . , North Cent ral Sect i on , Abst racts wi th Prog rams , 4( 7 ) : 589-590 .

McGi n n i s , L . D . , P . C . He i gol rf , M . Hei dari , and D . R . Ca rl son . 1972. Second Generat i on Grav ity Studi es i n the Mi dcont i nent , Geol . Soc . Am . , No rth Central Sect i on , Abst ract s with Prog rams , 4( 5 ) : 337 .

McGi n n i s , L . D . 1972 . The Dry Val l ey Dri l l i ng Proj ect , presented at the U . S . Antarct i c Ori entat i on Prog ram at Skyl and , Sept . 13- 1 7 , 197 1 .

McGi n n i s , L . D . 197 1 . Groundwater Geophys i cs i n Di s cont i nuous Permafrost Te rai n , Trans . Am . Gph . Un i on , 52 (4 ) : 205 .

McGi nn i s , L . D . , A . R . Sowayan , and T . E . Jensen . 1970. Geophys i cal St udi es of Anc i ent Mi s s i s s i pp i Ri ver Bedrock Val l ey , Geol . Soc . Am . , North Cent ral Sect i on , Abst racts wi th Prog rams , 2 ( 6 ) : 394-395 .

McGi n n i s , L . D . 1969 . Cru stal Bendi n g , Ma scons , a nd Gravi ty An oma l i es , Trans . Am. Gph . Un i on , 50 ( 4 ) : 32 1 .

McGi n n i s , L . D . 1969 . Mascons and Crustal Bendi ng i n the Conti nental I nteri o r , Geol . Soc . Am . , South Cent ral Sect i on , Abst racts and Programs , Pa rt 2 , p. 20.

McGi n n i s , L. D. 1968. Gl aci at i on as a Pos s i bl e Cau se of Mi neral Depos i t i on , Trans . Am . Gph . Uni on , 49( 1 ) : 356 .

McGi n n i s , L . D . 1965. Appl i cat i on of Se i smi c and Gravi ty Exp l o rat i on to Hyd rogeol og i c St udi es i n I l l i noi s , Trans . Am . Gph . Un i on , 46 ( 1 ) : 77 .

Bent l ey , C . R . , E . S . Robi nson , and L . D . McGi nni s . 1960. Se i smi c Vel oci ty Stud i es , Antart i c Symp . i n Buenos Ai res , Nov . 1 7-25 , I UGG Monog raph No . 5 .

PUB L I CATIONS : Books and Book Ed i t orsh i ps

Pa rker , B . C . , M . G . Mud rey , J r . , K . Ca rtwri ght , R . E . Cameron , and L . D . McGi nni s . 1978. App ra i sal for the Dry Val l ey Dri l l i ng Project Ph ases I I I , I V , V ( 1973-74, 1974-75 , 1975-76 ) , i n Envi ronmental Impact i n Antarct i ca , B . C . Pa rk e r , ed . , Vi rg i n i a Polytechn i c I nst i tute and St ate Un i v . , Bl acksburg , pp . 37- 143 .

Pa rk e r , B . C . , R . V . Howard , F . C . T . Al l mutt , and L . D . Mc Gi nn i s . 1978. Summa ry of Envi ronmental Mon i tori ng and Impact As ses sment of the DVDP ,

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i n Envi ronmental Impact i n Antarct i ca , B . C . Pa rke r , ed . , Vi rgi n i a Pol ytech n i c I nst i t ute and State Un i v . , Bl acksbu rg , p p . 2 1 1 -254 .

Mud rey , M . G. J r . , L . D . McGi n n i s , and S . E . Treve s . 1978. Summa ry of F i el d Act i v i t i es of the Dry Val l ey Dri l l i ng Proj ect 1972-73 and 1973-74 , i n Envi ronmental Impact i n Ant a rct i ca , B . C . Pa rk e r , ed . , Vi rgi n i a Pol ytechn i c Inst i tute and State Un i v . , Bl acksbu rg , p p . 179-210 .

McGi nn i s , L . D . , ed . 1981 . Dry Val l ey Dri l l i ng Proj ect , Ame ri can Geophys i cal Un i on , Anta rct i c Resea rch Seri es , V . 33 , �65 pp .

MAPS

McGi. n n i s , L . D . , D . A . St effy , and C . P. Ervi n . 1978. Si mpl e Bougu er Grav i ty Map of Mi nnesota - Bemi dj i Sheet , Mi s c . Map Se ri es M-41 , Mi nn . Geol . Su rvey , St . Paul .

McGi n n i s , L . D . , J . K . Jack s on , and C . P . Ervi n . 1978. Si mp l e Bougu er Grav i ty Map of Mi nnesota - Brai nard Sheet , Mi s c . Map Seri es M-40 , Mi nn . Geol . Su rvey , St . Paul .

Hi l debrand , T . G . , C . P . Ervi n , J . Hendri ck s , G . R . Kel l er , L . D . Mc Gi n n i s , and R . G . Stea rns . 1977 . Bouguer Grav i ty Map of the No rthern Mi s s i ss i ppi Embayment , parts of Mi ssou ri , Arkansas , Ten nes see , Kentucky , and I l l i noi s , U . S . Geol . Su rvey Open F i l e Report No. 77-228 .

McGi n n i s , L . D . , G . Du rfee, and R . J . !kol a . 1973. Si mp l e Bouguer Gravi ty Map of Mi nnesota - Roseau Sheet , Mi s c . Map Seri es , Map rn-12 .

133

V ITA

W . JOHN NELSON

PERSONAL

P resent Pos i t i on : As s oc i ate Geol ogi st , I l l i noi s St ate Geol ogi cal Su rvey

Off i ce Phone : ( 217 ) 344-1481 , ext . 222

Off i ce Add ress : Coal Sect i on I l l i noi s State Geol ogi cal Su rvey 6 1 5 E . Peabody Dri ve Champa i gn , IL 61820

Home Add ress : 206 S . McCul l ough Urbana , I L 61801

Pl ace of Bi rth : Mi ddl ebu ry , Vermont

Date of B i rt h : May 22 , 1949

EDUCAT I ON

1967 Deerf i e l d Academy , MA ( Hi gh School ) 1971 Wi l l i ams Col l ege , W i l l i amstown , MA ; BS , Geol ogy 1973 Un i vers i ty of I l l i noi s , U rbana , I L ; MS , Geol ogy

PROFESSI ONAL EXPER I ENCE

8/ 1973-2/ 1 974 Pet rol eum geol ogi st ( t rai nee) , Ph i l l i ps Pet rol eum Co . , Denve r , CO

3/ 1974-p resent Coal Sect i on , I l l i noi s St ate Geol ogi cal Su rvey

PROFESS IONAL ORGANI ZAT I ONS

I l l i noi s Mi n i ng I nst i tute I l l i no i s Geol ogi cal Soci ety

MAJ OR RESEARCH I NTERESTS

Fi el d geol ogy of any nat u re Coal geol ogy , especi al ly geol ogi c d i stu rbances i n coal seams Structu ral geol ogy , tecton i cs Sed i 111entat i o n , depos i t i onal h i story St rat i g raphy Pet rol eum geol ogy Ore depos i t s

PUBL I CATI ONS

Damberger , H . H . , W . J . Nel son , and H . -F . Krausse . 1980. Effect of geol ogy on roof stabi l i ty i n room-and-pi l l ar mi nes i n the He rri n ( No . 6 ) Coal of

1 34

I l l i noi s . Proceedi ngs , Fi rst Conference on Ground Cont rol Probl ems i n the I l l i noi s Coal Bas i n , Southern I l l i noi s Un i vers i ty , Ca rbondal e , I L , June 1980 , Y . P . Chugh and A . Van Be s i en , Eds . p . 14-32. I l l i noi s St ate Geol ogi cal Su rvey Rep ri nt 1980P .

DeMa ri s , P . J . , W . A . Di M i chel e , and W . J . Nel son . 1979 . A comp res s i on fl ora associ ated wi th channel -fi l l sed i ments above the He rri n ( No . 6 ) Coal . Abst ract , Ni nth I nternat i onal Con g ress o f Ca rbon i fe rou s St rat i g rap hy and Geol ogy .

Edwa rds , M . J . , R . L . Lan genhei m , J r . , W . J . Ne l son , and C . T . Ledvi na . 1979. L i thol og i c patterns i n t he Ene rgy Shal e Member and the ori g i n of 11 rol l s 11 i n the He rri n ( No . 6 ) Coal Membe r , Pennsyl van i a n , i n the Ori ent No . 6 Mi ne , Jeffe rson County , I l l i noi s . Jou r . Sed . Pet . , vol . 49 , no . 2 , 1979 . P . 1005- 1014.

Keys , J . N . , and W. J . Ne l s on . 1980 . The Re nd Lak e Fau l t System i n southern I l l i noi s . I l l i noi s State Geol ogi cal Survey Ci rcu l ar 513 . 23 p .

Krausse , H . -F . , H . H . Damberge r , W . J . Ne l son , S . R . Hu nt , C . T . Ledvi na , C . G . Treworgy , and W . A. Wh i te . 1979. Eng i neeri ng study of st ructu ral geol ogi c featu res of the He rri n ( No . 6 ) Coal and associ ated rock i n I l l i no i s . Vol ume 2 - det ai l ed report . I l l i noi s State Geol ogi cal . Su rvey , F i nal report to U . S . Bu reau of Mi nes , Cont ract No . H02420 1 7 . 205 p .

Kraus s e , H . -F . , H . H . Dambe rge r , W . J . Nel son , S . R . Hunt , C . T . Ledv i n a , C . G . Treworgy , and W . A . Wh i te . 197 9 . Roof st rat a o f t he He rri n ( No . 6 ) Coal and assoc i ated rock i n I l l i noi s - A summa ry report . I l l i no i s State Geol ogi cal Su rvey , I l l i noi s Mi ne ral Note 72 . 54 p .

Krauss e , H . -F . , W . J . Nel son , and H . R . Schwal b . 1979 . Cl ear Run Horst of Rough Creek Fau l t System-G reen Ri ver Parkway , Mi l epost 53. In , Depos i t i onal and st ructu ral h i story of the Pennsyl van i an System of the I lTTnois Bas i n ( Pal me r and Dut cher, Eds . ) , Pa rt 1 . Road l og and descri pt i on of stops , F i e l d Tri p 9 , N i nth I nte rnat i onal Cong ress of Carbon i ferous St rat i g raphy and Geol ogy . p. 43-48.

Ne l s on , W . J . 1979. Geol ogi c effect s of the Wa l s hvi l l e channel o n coal mi n i ng cond i t i ons in southern I l l i noi s . I n , J . E. Pal mer and R . R . Dutcher , Eds . , Depos i t i on al and structura 1 h i s.toryof the Pen nsyl van i an System of t he I l l i no i s Bas i n - Part 2 . I nv i ted Papers , F i e l d Tri p 9 , Ni nth I nternat i onal Co ngress of Ca rhoni ferous St rat i graphy and Geol ogy .

Nel son , W . J . , and C . T . Ledvi n a . 1979 . A g ravi tati onal s l i de i n the En e rgy Sh al e Membe r ove rly i ng the He rri n ( No . 6 ) Coal i n southern I l l i noi s . Compte Rendu , Ni nth I nternat i onal Cong ress of Carbon i ferous St rat i g raphy and Geol ogy . I n p res s .

Ne l s on , W . J . , and R . L . Lan genheim , J r . 1980. Ecol ogi cal observati ons on Chaetetes i n southern Nevada . Paci fi c Geol ogy 14. p . 1 -22 .

Ne l s on , W . J . , and R . B . Na nce . 1980. Geol ogi cal ma ppi n g of roof condi ­t i on s , Crown I I Mi ne , Macoup i n County , I l l i no i s . Soci ety of Mi n i ng Engi neers of A IME , Prep ri nt No . 80-308. I l l i noi s St ate Geol ogi cal Su rvey Rep ri nt 1981A. 9 p .

135

Nel son , W. J . 1981 . Fau l ts and thei r effect on coal m i n i ng in I l l i noi s . I l l i no i s St ate Geol ogi cal Su rvey Ci rcu l a r 523. 38 p .

Nel son , W . J . , and H . -F . Kraus s e . 1981 . The Cottage Grove Fau l t System i n sou t hern I l l i noi s . I l l i noi s St ate Geol ogi cal Su rvey Ci rcu l a r 522. 65 p .

Nel son , W . J . , and P . J . DeMari s . 1983 . St ri ke-s l i p fau l t i n fl at- lyi ng strata of Macoup i n Cou nty , I l l i noi s . Abs t ract , Geol ogi cal Soc i ety of Ameri ca , North-Cent ral Sect i on meet i ng , Mad i s on , W i scon s i n , Ap ri l 28, 1983 .

Ne l s on , W . J . , and S . K . Danner . 1982 . Th i n and d i sturbed He rri n ( No . 6 ) Coal near upl and ma rg i ns o f the I l l i noi s Bas i n . Abst ract , Geol ogi cal Soc i ety of Ame ri ca , An nual Meet i ng , New Orl ean s , Lou i s i ana , October 18 , 1 982 .

Danner, S . K . , and W . J . Ne l s on . 1982. Predi cti on of geol ogi c anoma l i es i n advance of mi n i ng : th ree case stud i es . Abst ract , Ame ri can Associ at i on of Pet rol eum Geol ogi sts , Ea stern Sect i on Meet i n g , Bu ffal o , New York , October 1982 .

.

Ne l s o n , W . J . 1983. Geol ogi c d i strubances i n I l l i no i s coal seams . I l l i noi s State Geol ogi cal Survey , C i rcu l ar 530 . 47 p .

Ne l son , W . J . , and Don al d K . Lumm . 1984. St ructu ral geol ogy of sout heastern I l l i noi s and v i c i n i ty . I l l i no i s State Geol ogi cal Su rvey , Co ntract/ Grant Report 1984-2 . 127 p .

Nel son , W . J . , and Donal d K . Lumm . 1985 . Ste . Genevi eve Fau l t Zone , Mi s sou ri and I l l i noi s . I l l i noi s St ate Geo l ogi cal Su rvey , Cont ract/ Grant Repo rt 1985-3. 94 p .

136

V I TA

J OHN L . SEXTON

PERSONAL

P resent Pos i t i on : As soci ate Professor of Geophys i cs , Southern I l l i noi s Un i vers i ty , Carbondal e , I l l i noi s

Offi ce Phone : ( 618 ) 453-3351

Off i ce Address : Depa rtment of Geol ogy Southern I l l i no i s Un i vers i ty-Ca rbondal e Ca rbondal e , I L 62901

Horne Add ress : 222 Count ry Cl ub Lane Ca rte rvi l l e , IL 62918

Pl ace of B i rth : Ca rmi , I l l i noi s

Date of Bi rth : May 2 1 , 1942

EDUCAT I ON

1964 Cl ari on St ate Col l ege ; BS , Phy s i cs 1971 I nd i ana Un i vers i ty ; MA, Geophys i cs 1974 Indi ana Uni vers i ty ; Ph . D . , Geophysi cs-Se i smol ogy

PROFESS I ONAL EXPER IENCE

1964-65 1965-66

1966-67 1 967-69 1 969-73

1973-75 1975-78

1 978-82

1 982-85

1 985-Present

Phys i cs Teache r , Crestvi ew Hi gh School , As h l and , OH Materi al s Engi neer , The B . F . Good ri ch Company , Ak ron , OH Engi neer , Th e Ma rt i n Co . , Orl ando , FL Phys i c i st , Naval Avi on i cs Faci l i ty , I n d i a napol i s , IN Indi ana Un i ve rs i ty , Ph . D . Program , Bl oomi n gton , IN Sen i or Geophys i c i st , Research , Texaco , I nc . , Houston , TX As s i stant Professor of Geophys i cs , Department of Geol ogy , Southern I l l i no i s Uni vers i ty , Ca rbondal e , I L As s i stant Professor of Geophys i cs , Department of Geosci ences , Pu rdue Uni vers i ty , West Lafayette, I N Su pervi sor o f Expl orat i on Systems , ARCO Exp l o rat i on Company , Northeastern Reg i on , Dal l as , TX As soci ate Professor of Geop hy s i cs , Southern I l l i no i s Un i vers i ty , Ca rbondal e , I l l i no i s

PROFESSI ONAL ORGAN IZAT IONS

Se i smo l ogi cal Soc i ety of Ame ri ca Soc i ety of Expl orat i on Geophys i c i sts Ame ri can Geophysi cal Un i on S i gma Xi

MAJ OR RESEARCH I NTERESTS

Sei smi c refl ect i on studi es of the c rust Dat a acqu i s i t i on proces s i ng and i nterpretat i on of se i smi c data

,.I'

137

PAPERS AND PRESENTATI ONS AT PROFESSI ONAL MEET I NGS

Sexton , J . L . , J . Mead , and A . J . Rudma n . 1972 . Fea s i b i l i ty of Mi dwest Crustal Stud i es Based on Earthquake Su rface Wave El l i pt i c i t i es , Presented at Indi ana Academy of Sc i ence Meet i ngs , Novemhe r 14-15 , 1972 , Un i ve rs i ty of Not re Dame , South Bend , I nd i ana .

Sext on , J . L . , and R . D . Co l e . 1977 . Max i mum Ent ropy Spect rum An a lys i s of Va rved Oi l Shal e , Green R i ver Format i on , Col orado : ( Abst ract ) , Geol ogi cal Soci ety of Ame ri ca ( GSA No rth-Cent ral Se ct i on An nual Meet i ng , Ca rbondal e , I l l i noi s , Apri l , 197 7 ) .

Co l e , R . D . and J . L . Sexton . 197 7 . Rhythmi c Va r i at i ons i n Oi l -Shal e Strat i fi cat i on : Green R i ver Format i on , Pi ceance Creek Bas i n , Col orado ( abst ract ) , Geol ogi cal Soc i ety of Ame ri ca ( GSA No rt h-Cent ral Sect ion Ann u al Meet i n g , Ca rbondal e , I l l i noi s , Ap ri l , 1977 ) .

Steel e , She i l a , Sext on , J . L . and Hood , W . C . 1978. Radon Profi l es of the New Mad ri d Sei sm i c Reg i on ( abst ract ) , Sei smol ogi cal Soci ety of Ameri ca ( SSA 73rd An nual Meet i n g , 1978) .

Steel e , Shei l a , Hood , W . C . and Sexton , J . L . 1978. Sp at i a l and Temporal Radon F l ux i n the New Mad ri d Sei sm i c Zone, ( abst ract ) , Ameri can Geophysi cal Un i on ( AGU Mi dwest Meet i n g , Se ptembe r , 1978) .

Sexton , J . L . , F rey , E . P . , Mal i ck i , D . 1979 . Res ol u t i on Se i smi c Refl ect i on Su rvey i ng i n the Northwestern Tennes see , ( abst ract ) , Geol ogi cal South-Central Sect i on An nual Meet i n g , Mou nta i n

Feas i bi l i ty of Hi gh Vi c i n i ty of Reel foot Sca rp i n Soc i ety of Ameri ca ( GSA . Vi ew , Arkansas , Ap r i l , 1979) .

Sexton , J . L . , Bal dwi n , J . L . , Brai l e , L . W . , Hi n ze , w . J . , Kel l e r , G . R . ' 1 979. Cru stal Sei smi c St udi es i n the Wabas h Ri ve r Val l ey Area , ( abst ract ) Geol ogi cal Soc i ety of Ame ri ca ( GSA South -Cent ral Sect i on Annual Meet i ng­Mou ntai n Vi ew , Ark ansas , Ap ri l , 1979) .

Brai l e , L . W . , Hi nze , W . J . , Sexton , J . L . , Kel l e r , G . R . , and Li d i a k , E . G . 1980. Sei smo-Tecton i cs o f the New Mad ri d Se i smi c Zone and i t s Ext ens i on - An Overv i ew ( abst ract ) Geol ogi cal Soci ety of Ame ri ca ( GSA North -Cent ral Sect i on An nual Meet i n g , Bl oomi ngton , Indi ana , Ap ri l , 1980) .

Bal dwi n , J . L . , Sexton , J . L . and Brai l e , L . W . 1980. Crustal Sei sm i c Stud i es Re l ated to t h e Northeast Ext ens i on of t h e New Mad r i d Se i smi c Zon e , ( abst ract ) Geol ogi cal Soci ety o f Ameri ca ( GSA North-Cent ral Sect i on Annual Meet i n g , Bl oomi ngt o n , I nd i ana , Ap ri l , 1980) .

Sexton , J . L . and W . J . H i nze . 1980 . A Magnet i c Profi l e Map of the Uni ted St ates ( poster paper ) , Ame ri can Geophysi cal Un i on Mi dwestern Meet i ng , DeKal b , I l l i no i s , Septembe r , 1980 .

Sexton , J . L . , J . L . Ba l dwi n , L . W . Brai l e , W . J . Hi nze , and G . R . Kel l er . 1980 . Crustal Model s of the Wabash Ri ver Val l ey Area from Sei smi c Refract i on Data ( abst ract ) . Ame ri can Geophys i cal Un i on Mi dwest Me et i n g , DeKal b , I l l i noi s , September, 1980 .

138

Sext on , J . L . , J . L . Ba l dw i n , and L . W . Brai l e . 1980. Sei smi c Wave Propagat i on Studi es i n the Wabash Ri ver Val l ey Area us i ng Coal Mi ne B l ast Sou rces ( abs tract ) , Sei smol ogi cal Soc i ety of Ame r i c a , Eastern Sect i on , Ann ual Meet i ng , The Pennsyl vani a State Un i vers i ty , State Col l ege , Pen nsyl van i a , October , 1980.

Sext o n , J . L . , W . J . Hi nze , R . R . B . von Frese and L . W . Brai l e . 1981. Long Wavel ength Aeromagnet i c Map of the U . S . A . , Ame ri can Geophys i cal Un i on , Sp r i n g Meeti n g , Ba l t i more , Ma ryl and , May 25-29 , 1981 .

von F rese, R . R . B . , W . J . Hi nze , J . L . Sexton and L . W . Bra i l e . 198 1 . U . S . Ae romagnet i c a n d Satel l i te Magnet i c Anoma ly Comp a ri sons , IAGA Meet i n g , Edi nburg h , Scotl anrl .

H i nze , W . J . , J . L . Sext on , R . R . B . von Frese and L . W . Brai l e . 1981 . Correl at i on of Regi onal Geol ogi c Featu res . wi th Long-Wavel enth Magnet i c An oma l i es , Geol ogi cal Soc i ety o f Ame ri ca Nat i onal Meet i ng , Ci nc i nnat i , Oh i o , November 2-5 , 1981 .

Sexton , John L . and P . B . Jones . 198 1 . Hi gh Re sol ut i on Se i smi c Refl ect i on Su rveyi ng on Reel foot Sca rp, Geol ogi cal Soc i ety of Ame ri ca Nat i onal Meet i ng , Ci nci nnat i , Oh i o , November 2- 5 , 1981 .

Bra i l e , L . W . , W . J . Hi nze, J . L . Sexton , G . R . Kel l er and E . G . Li d i ak . 1981 . Sei smot ecton i cs of the M idcont i nent USA , Geol ogi cal Soci ety of Ame ri ca Nat i onal Meet i n g , Ci nci nnati , Oh i o , November 2-5 , 198 1 .

Jones , P . R . and J . L . Sexton . 1 982. Evi dence from Sei smi c Refl ect i on Data and Synthet i c Se i smog ram Model St ud i es for Recu rrent Fau l t i ng i n the New Mad rid Area ( abst ract ) , Geol ogi cal Soc i ety of Ame r i ca North -Cent ral Meet i ng , West Lafayette, Ind i ana , Ap r i l 29-30 , 1982.

Sexton , J . L . , L. W . B rai l e , and W. J . Hi n ze . 1982 . Sei smi c Refl ect i on Su rveyi ng i n the Wabash Ri ver Val l ey ( abst ract ) . Geol ogi cal Soc i ety of Ame ri ca North -Cent ral Meet i n g , West Lafayette , I nd i an a , Ap r i l 29-30 , 1982 .

PUBL ICAT IONS

Menendez , M . G . , and J . L . Sexton . 1968. Appl i cabi l i ty of Ra i z er ' s Method of Cal cul at i ng the Deg ree of I oni zat i on of a Mu l t i ply Ioni zerl Ideal Gas : Jou rnal of Appl i ed Phys i cs , Feb ru a ry , 1919-192 1 .

Sexton , J . L . , J . Mead and A . J . Rudman . 1973 . Feas i b i l i ty of Mi dwest Crustal St udi es Based on Ea rthqu ake Su rface Wave El l i pt i c i t i es : Proceed i n gs of the I nd i ana Academy of Sci ence s , v . 82, 341-346 .

Sexton , J . L . , A . J . Rudman and Judson Mead . 1 9 7 7 . El l i pt i c i ty of Rayl e i gh Waves Recorderl i n the Mi dwest : Bul l et i n of the Sei smol ogi cal Soc i ety of Ame r i ca , v . 67 , No . 2, 369-382, Ap ri l , 1977 .

Steel e , Shei l a , W . C . Hood and J . L . Sexton . 1983 . A Study of Spat i al and Temp o ral Radon Va r i at i on i n the New Mad ri d Se i smi c Reg i on , 1983, i n U . S . Geol og i cal Su rvey Professi onal Paper 1236-H on Sei smotectoni c Studi es i n the Cent ral Mi s s i ss i pp i Val l ey .

139

Sexton , J . L . , and D. Mal i ck i . 1979 . A Mi c rop roces sor Engi nee ri ng Sei sm i c a n rl Computi ng System , Geoexp l orati on , v . 1 7 , 1 1 1- 1 24 .

Sexton , J . L . , E . P . F rey and D . Mal i ck i . 1983 . Hi gh Resol ut i on Sei smic Refl ect i on Su rvey i ng on Reel foot Scarp , No rthwestern Tennessee , 1983 , i n U . S . Geol ogi cal Su rvey Profess i onal Paper 1236-H on Sei srnotectoni c Stud i es i n t he Cent ral Mi ss i ss i ppi Val l ey .

Brai l e , L . W . , W . J . Hi nze , J . L . Sexton , G . R . Kel l e r and E . G . Li d i ak . 1979 . An I nteg rated Geophys i cal and Geol ogi cal Study on the Tecton i c Framewo rk of the 38th Pa ral l el Li neament i n the Vi ci n i ty of i t s Intersect i on wi th the Extens i on of the New Mad rid Fau l t Zone , NUREG/CR- 1014 , p repa red for the U . S . Nuc l ear Regul atory Commi s s i o n .

Brai l e , L .W . , Hi nze , W .J . , Sexton , J . L . , Kel l e r , G .R . , Li d i a k , E . G . 1981 . An I ntegrated Geop hys i cal and Geol ogi cal St udy of the Te cton i c Framewo rk of the 38th Pa ral l el L i neament i n the Vi c i n i ty of i ts I ntersect i on wi th the Ext ens i on of t he New Mad ri d Faul t Zone , NUREG/CR-1878, p repared for the U . S . Nucl ear Regul ato ry Commi s s i on .

Brai l e , L . W . , Hi nze , W . J . , Se xton , J . L . , Kel l er , G . R . , Li d i ak , E .G . 1982 . A Tecton i c Study of the Exten s i on of the New Mad rid Fau l t Zone near i t s Intersect i on wi th the 38th Pa ral l el Li neament , NUREG/ CR-2741 , p repa red for the U . S . Nucl ear Regul atory Commi s s i on .

Sext on , J . L . , W . J . Hi nze, R . R . B . van Frese and L . W . Bra i l e . 1982. Long-Wavel ength Aeromagnet i c Anomaly Map of the Contermi nous U . S .A . , Geol ogy , v . 10 , 364- 369 , Ju ly , 1982.

von Frese , R . R . B . , W . J . Hi nze , J . L . Sexton and L . W . Brai l e . 1982 . Veri fi cat i on of the C rustal Component i n Satel l i te Magnet i c Data , Geophysi cal Research Letters .

Col e , R . D . and J . L . Sexton . 198 1 . Pl e i stocene Su rfi c i a l Depos i ts of the Grand Mesa Area , Col orado , New Mexi co Geol ogi cal Soci ety Gu i deboo k , 32nd Fi el d Conference , We stern Sl ope Col orado, 121- 126 .

B rai l e , L . W . , W . J . Hi n ze , J . L . Sexton , G . R . Kel l er , and E . G . Li d i ak . 1982. Se i smi ci ty and Tectoni cs of the Mi dconti nent Uni ted St ates , Proceedi ng of the Th i rd I nternat i onal Ea rthquake Mi c rozonat i on Conference , June , 1982.

Brai l e , L . W . , J. L. Sexton , K. Ma rt i ndal e , and C . S . Ch i ang . 1982 . Sei smi c Wave Generat i on and Propagat i on from Coal Mi ne Bl asts at t he Wri ght Mi ne , Wa rri ck Cou nty , Indi ana , Fi na l Report , 343 p .

·

Sexton , J . L . , L . W . Brai l e , W . J . H i n ze , and M . J . Campbel l . 1 986 . Sei smi c Refl ecti on Profi l i ng stud i es of a B u ri ed Precamb ri an Ri ft Beneath the Wahash Val l ey Faul t Zone , Geophys i cs , Ma rch , 1 986 .

Brai l e , L . W . , W . J . Hi nze , John L . Sexton , G . R . Kel l er , and E . G . L i d i a k . 1986 . Tecton i c Devel opment of the New Mad rid Sei smi c Zone , Tectonop hys i c s .

140 .

Sexton , J . L . and P . B . Jones . 1986 . Evi dence for Recurrent Fau l t i ng i n St an l ey , W . D . 1984. Tectoni c St udy of the Cas cade Ra nge and Co l umbi a the New Mad rid Sei smic Zone From Mi ni Sos i e H i gh Resol ut i on Sei smic Refl ect i on Dat a , i n press , Geop hys i cs , September , 1986 .

Sexton , J . L . and P . B . Jones . 1986 . Mi n i Sos i e Hi gh Resol ut i on Refl ect i on Su rvey of the Cottonwood Grove Fa u l t i n Nort hwestern Ten nes see , submi tted to Bul l et i n of the Sei smol ogi cal Soci ety of Ameri ca .

141

V I TA

W I LL I AM DAL STANLEY

PERSONAL

P resent Pos i t i on : Ch i ef of Sh al l ow Crustal Geophysi cs Sect i on , Branch of Geophys i cs , U . S . Geol ogi cal Su rvey

Offi ce Phone : { 303) 236-1328

Offi ce Add ress : USGS , MS 964 Box 25046 , Denver Federal Ce nter Denver, Col orado 80225

Home Add res s : 1855 Sout h Arbutus Cou rt Lakewood , CO 80228

Pl ace of B i rth : C l ebu rne , Texas

Date of Bi rth : Novembe r 6 , 1939

EDUCAT I ON

1966 : Texas Technol ogi cal Un i vers ity , Lubbock , Texas , B . S . Mathemat i c s 1970 : Un i vers i ty of Utah , Sa l t Lake C i ty , Utah , Ph . D . Geophys i cs

PROFESS IONAL EXPER I E NCE

1 970- 1985: 1985-p resent :

Research Geophysi c i st , U .S . Geol ogi cal Su rvey Superv i sory Geophys i c i st , U . S . Geol ogi cal Su rvey

PROFESS I ONAL ORGAN IZAT IONS

Ame ri can Geophys i cal Un i on Geol ogi cal Soc i ety of Ame r i ca Soc i ety of Expl orat i on Geophys i c i sts

MAJ OR RESEARCH INTERESTS

E l ect romagnet i c and sei smi c exp l o rati on met hods Crustal con<i uct i v i ty st ructu res Regi onal tecton i cs Geotherma l , gr9und water , and hyd rocarbon res ou rces

PUBL ICATI ONS

St anl ey , W . D . 1983 . Regi onal El ect r i cal St ructu res i n the Cascades and the i r s i gn i f i cance i n geothermal and vol cano hazards assessment [abs . ] : Ame ri can Geophys i cal Un i on Fal l Meeti ng , Sa n Franci sco .

142

St anl ey , W . D . , and R . D. Ti nkl e r . 1983. A pract i cal , l ow-noi se coi l system for magnetotel l u ri cs : U . S . Geol ogi cal Su rvey Open F i l e Report 83-85, 18 ms pages , 20 i l l u st rat i ons .

Stan l ey , W . D . 1984 . Tecton i c st udy o f t h e Ca scade Ran ge and Co l umb i a Pl ateau based upon magnetotel l u r i c sound i ngs : Journal Geophys i cal Resea rch , v . 89 , no. B6 , p . 4447 -4460 .

Stanl ey , W . D . , and J . L . Pl es h a . to sedi ment subduct i on a n d deep Geol ogi cal Survey Depa rtment of 83MC2422-Tas k No . 4 .

1985 . E l ect romagnet i c geophysi cs appl i ed sou rce gas : Progress report on U . S . Ene rgy I nteragency Ag reement DE-Al 21-

St anl ey , W . D . , A . R . Sa ad , and W . Oh ofugi . 1985 . Ut i l i zat i on of magnetotel l u ri cs in reg i onal hyd roca rbon expl orat i on i n the Parana Bas i n , Brazi l : Ame ri can As soc i at i on Pet rol eum Geol ogi sts Bul l et i n , v . 69 , n o . 3 , p . 457-47 1 .

St an l ey , W . D . 1986 . Comp a ri son of magnetotel l u ri c/tecton i c model s f rom Mesozo i c orogen ic reg i ons of the Uni ted States and Eu rope [abs . ] : I nternat i onal As soc i ati on of Geomagneti sm a nd Ae ronomy Wo rks hop on EM I nduct i on i n the Earth and Moon , August 1986 , i n p res s .

St anl ey , W . D . 1986 . Magnetotel l u ri c study of a comp res s ed flysch system i n the Healy and adj acent quad rangl e , cent ral Al aska , Branch of Al aska Geol ogy Ci rcul a r , i n p ress .

Fr i tterma n , D . B . , R . J . Bi sdorf , W . D . St an l ey , and A . A . R . Zohdy . 1986 . Geothermal s i gn i fi cance of an extens i ve conductor beneath Newberry vol cano, Oregon : presented at Mc Kel vey Symp osi um , Denve r , Col orado , Feb ruary 5-6 , 1986 .

PERSONAL

- 143 -

V ITA

PETER R . VAIL •

P resent Pos i t i on : W . Mau ri ce Ewi ng Profes sor of Ocea nography , R i ce Un i vers i ty

Off i ce p hone : 7 13/ 527-4880 Offi ce add res s : Depa rtment of Geol ogy and Geophy s i cs

R i ce Un i vers i ty P . O . Box 1892 Houston , TX 77251

Date of B i rth : January 1 3 , 1930

EDUCAT I ON

AB : Dartmouth M . S . and P h . D . M . S . Thes i s :

Ph . D . Thes i s :

Col l ege - 1952 ( Geol ogy ) - Northwestern Un i vers i ty - 1956 "The I gneou s and Met amorph i c Comp l ex of the East Bou l der R i ver Area , Montana" "St rat i g raphy and Li t hofac i es of Upper Mi ss i s s i pp i a n Rock s i n the Cumberl and P l ateau "

PROFESS I ONAL EXPERI ENCE

R,i ce Un i ve rs i ty , . W . Mau ri ce Ewi ng P rofessor of Ocea nog raphy - 1986 to p resent

Exxon P roduct i on Res ea rch Company and P redeces sors - 1956 to 1986 F rom resea rch geol ogi st wi th the Resea rch Di v i s i on of Ca rter Oi l , Tul s a ,

Ok l ahoma ( a p redecesso r ) to Sen i o r Resea rch Sci ent i st wi th Exxon P roduct i on Research - Houst on , Texas

PROFESS I ONAL ACT I V I T I ES

GSA-DNAG Commi ttee Co-Chai rman - Sed i menta ry Cove r of the C raton , 1983-Adv i s o ry Commi ttee Member for Consort i um for Conti nental Refl ecti on Profi l i ng ( COCORP ) , S ite Sel ect i on Comm , 1974-81 , Executi ve Comm . 1986-Membe r , I nternati onal Subcommi s s i on on St rat i g raph i c C l ass i fi cat i on , 1976-SEG Di sti ngui shed Lecture r , 1986 SEPM D i st i ngui shed Guest Speaker , 1984 Membe r of JOIDES Pass i ve Ma rg i n Panel , 1978-83 Membe r , Ocean Sci ence Boa rd of the Nati onal Academy of Sci ence, 1979-82 Membe r of AAPG Research Committee , 1978-83 Counc i l or , Geol ogi cal Soc i ety of Ame ri ca , 1979-82 Gal l agher Vi s i t i ng Sci ent i st , Un i vers i ty of Cal g a ry , Novembe r 1980 Chai rman and Ed i to r , Pal eoenvi ronments of Cont i nental Envi ronments , I nternat i onal Geo l ogi cal Con gres s , Pari s , France , 1980 Chai rman of Resea rch Grants Commi ttee of GSA , 1978-79 , Member 1976-78 Member , Geodynami c Syntheses Commi ttee of Geodynami c P roj ect , 1974-76 V i s i t i ng Sci enti st , Woods Hol e Oceanog rap hi c I nsti tut e , Mas sachusetts , 1 976 Organ i zed AAPG- SEG School on "St rat i g raph i c I nt e rp retat i on of Sei smi c Dat a " ,

- 144 -

197 6 ; Lect u rer 1976 and 1977 AAPG D i st i ngui shed Lect u re r , 1975-76

Members h i p s •

Si gma X i Geol ogi cal Soci ety of Ameri ca ( Fel l ow ) Ame ri can Associ at i on o f Pet rol eum Geol ogi sts Soc i ety of Expl orat i on Geophys i c i sts ( honorary membe r ) Soc i ety of E conomi c Pal eontol ogi sts and Mi neral ogi sts Hou ston Geophy s i cal Soci ety ( honorary membe r ) Geo l ogi cal Soci ety of Houston Ame ri can Assoc i at i on fo r Advancement of Sci ence ( Fel l ow ) Eu ropean As soci ati on o f E xp l orat i on Geophys i c i sts Geol ogi cal Soci ety of London

Honors

Wi l l i am Smi t h Medal , Geol ogi cal Soci ety of London ( 1986 ) Di st i ngu i shed Lecturer , Soci ety of Expl orat i on Geophys i c i sts ( 1985 ) Bul l erwel l Lect u re r , Uni ted Ki ngdom Geophysi ca l Soci ety ( 1983 ) D i st i n gui shed Ach i evement Award for I ndi vi dual s , Offshore Technol ogy Conference ( 1983 ) Best Paper Awa rd , Hou ston Geol ogi cal Soc i ety ( 1983 ) Geophys i cal Soci ety of Houston ( honora ry membersh i p ) - 1982 AAPG P res i dent ' s Awa rd for Best Publ i shed Paper ( 1977 ) V i rgi l Kauffman Gol d Medal Award for the Advancement of the Sci ence of Geophysi cal Exp l o rat i on , SEG Annual Meet i n g , 1976 AAPG D i st i ngu i shed Lect u rer ( 1975-76 )

L i st of 16 publ i cat i ons suppl i ed on request .