Kessler [Rush Valley-Stockton] Pages From PP-111final-3

8/14/2019 Kessler [Rush Valley-Stockton] Pages From PP-111final-3

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362 OR[': DEPOS I'l'::i OF UTAH .Qod dcg r.uJa.t.ion , and by tI\lu",eoqucn t ag:;r.ldnt iofl whichmay bo du e to "ligh t depreK3"ion. it . . . tDuring theae h nd mo\'cmentJ:I tboacLivity of the ero...q\,cagents has ncco rdc.ntly. At aD early date auriferous grd.\'cl W:ltl formed by th e o r o ~ i o u of sold-bearing ore:-thoots in l i . m ~ t l l e . i an d of igneous :lnd pro bab lymcnt.uy 9.urifcrous roeb . Portiolls deposited in streambood wore Bl!o:requcntly loft P1I benched by furthcr e


2/39

0QvrnRH G E , 363ad tho r"""iuder of .he la!; e hed l)cillg "'--curie.] hy ' fl'om t,he Delmont


3/39

364 ORE n ~ P O : ' ; I T S Of' UTAH.t;p Quandary gllkb, OflC(Olll"'lh of :L nlile irom Si lv erSpring, i.s the Quandary lllde, clcnlopcJ hy a ~ h : a f t (l\"er

100 feet iu depth with levels nm th Qrefro m.I.he gu'kh irom thoQu;ual;try,ltf tbcGrc.tt Rn.cinlode, opened by tunnel 100 fIX", :md elmfL no fcut; h3.Kproduced high-grade ow. .A Shu l1.di.rt.1nce :lbovc tho QU:lnutlry up tb,,c gulch;8 thefir:lt extension nort h of tbe Groot Centr"t lodo, a. welldefined, t.ruo fit-;..mro vei.n, in quartzite, nwuhlg n o r t nnd80u.h; oro about 50 pcr f'ellt }rod :lOd $150 per ton of Kll\'Cf.North irom tbe Quandary, on tho top of the bill, is 1hcmin!! Om Frlt7., shah. 100 feet in (ITe ull tho ' 9 . ' ~ . y , which " , ~ y ~ ~ h o u ( . to pcr cent. 'Cold ~ u d f;:)'( b Il" il\'cr tothe t.Qo; 'II- it ..

The :Fi:lIf. Na60nnl (formerly F 1 o l " i ~ 'f (>IDplo ) is [l welldevelopc.'d mille with [l t'.haft over 100 feet; strong "eio ::md;ood b(Jtly of orc.1 f ~ n y of the daims, which were worked in

the early days lIS individutll properties, nowform port of groups owned by tho BullionCoalition (formerly Honcrine), Golenn King,~ e w Stockton, Dlnck Dinmond, C)'clOM, SilverCoin, and Southport.Tho Grellt Busin claim, which btm becometho property of the Honcrinc, also known astho Nationnl, wos included in Lhe group of 77I'"tOil ted mining clllims and fmctions t.mnsferred to the Bullion Coalition 11incs Co. in1910. Tho property is opened by u.n adit13,000 fet,t long. The tot"l output of theHonerinG nud it s predecessors is reported 1 tohnyo been 80,000 tons of oro vlllued at.Sl,250,-000 to the end of 1889. At thot time thc.rewere ll,500 leet of openings Ilnd tbe gren testdepth WilS 660 feet. A J.ugo concentrutor WIlSin opomtion and hos been wOlked intermittently up to tbe end oI 1m3. Between l890nnd 1901 there nppo"rs to 11Ilve be.en very littleoro produced from the H onorine mine"; ntleust., tho United SbLtos Geologico.! Survey is notin pos.'>OSsion of tho records.

Tbo Jn cobs smoltor, built at St(\c.ktn!) in1872, consisted of three yertienl blnst furnnees ond used ores Irom tbe Fourth of Julynnd Keursn.rgc mines nonr Ophir. The Fourthof July was owned by I ~ n y , Leisenri.ng & Co.,of Phill1dl'lphia, who wero OWIlers of the J aoobsworks. In 1879 t.ho Grout Bu;;in conce.ukotor,( ~ o n ~ i s t i n g of jigs, W ~ l S in8bllcd in nn oxt


4/39

..V'eto.l. prGold. Si l ...er. Copper . L=.J. :Rccovcrnblo "Lnc.O, e TOLalYear. ....:\lllen.) . Fine V3.1ue. . Fino Value. Pounds. Value. Pound5. VtJ.luo. Pound" . , l u counces. ounces.I90J .. . . . . . . . . . . . . . . . . . . . . . . . .. .. .. 0400 34.54 $714 6,618 $3,97 1 .. .... .. . . .. . . . . .. .1 a200, 000 6 0 0 ..... .. . . .. .... .1902 . . . . . . " . . . . . . . . . . " . . ".,. 406 . 64. 00 1,323 7,179 3,964 ..... ..... .. . .. .... 250 / 651 10,271 . .. . . .. . . . . .... . . 15 , 5rJ1903. . . . " .. . . . . . . . . . . . . . . .. " .. " 142 1.69 07 1,211 6.'>4 . .. .. .. .. . . ........ 2'i,OO!) I , 1:)4 ...... ... .. .. .. . 1, 831004 .. . . . ". , . . . . . . . . . . . . . . . . . . . . . 644,115 292.99 6,056 176,6 10 101 , 052 5,243 $65 6 11 , 9iS, 0]18 52-1,0;j7 .... . .. . " .. .. . . 63J, 821905.." .. . . . .. '" '" '' ' '' ' ' ' ' ' ' ' ' ' b 10, 131 322.00 6,656 56,025 33,839 113 65 3,499,020 lOa, 11 9 .. . .. .. . . .... .. . . 19;;,971906 . . . . . . . . . . . . . . . . . . . . . . . . . . . bc37, -100 398.83 8, 216 95,861 64,227 3,8;8 745 4,982, 872 284, 024 ........ . .... .. .. 35i', 2-4.

:;

1907. . . . .. . " . . . . . .. .. . .. . . . . . . . " . 648,318 324. 43 G,707 130,48i &;,121 ~ 1 8 63 6, GZ2, ().12 350,068 .. . ..... . ....... . t43,851908 . . . . . .. .. " . . . . . . . . . . . . . . . . . . . b2,6 02 14. 70 304 31,386 16,635 5,77g 1, 676,217 70, -101 ........ . .. . ..... 88 , JO1909.. " . . . . . .. . .. . . . . . . . . . . . . . " . b5,627 21. 48 4-14 24,096 12,530 1,781 232 J, 2Ia,2GO 52, JiO ........ . ..... .. . G5,37 11910 . . . . . . . . .. . " .. . . . . . " .. " " . . . 6 I, 981 27.32 565 16 ,8SS 8,580 10,3.').1 1, 315 g65, 1-1 13 42, -tGG ....... . . . ...... . 52 ,92 18,306 b(),] , 76-11917. __ .. __ . .. . . . . . . . . . . . . . . . . . . . 10,713 708.53 11/047 79,797 65. 753 43 ,335 11, 8:m 3,310,077 28>,097 56, 190 5, 7G2 383,OS{I 326,5131 0,67,1. 98 1 11 '1, 3il \1,126,970 I 868, 290 611, 677 113,381 1(8) 645,451 ' 3,421,660 870,710 /10,402 4,561,047

II Est\.mn\.ed. . " Ittly ruIlllnf:" (JIll, c O I l . J . l l r . & ~ produee4. tI MCdlly ol4 tAll1ne.s. d lDcludcs 'Zl,e..J.1 &.oll$ or old :JIlt: tram . . . .'.Ilg ojX'I'.&UQw. It u:lu de::l 2. ()t.!I lQrlS of old la.iJiJ:lg IWd Ilae'.

:gc:;;'"I:'".."".,

'"'>"n


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366 ORE DEPOSITS OF UTAH.)I uch or the orc of tbo district has bee n vcry rich, t~ 6om c timc:; ftvem:;ing am ong the hundreds, and ovTh o ores in the Opllir district were discovered Ihou$ md!4 . Tn East. r:tnyoD th o ore was lL:'Ul lly :'. vc:

in 1865.1 Treasure Hill, in East Cllnyon, had silieC'ou:-I or milling ore; bu t that. from Pry Canyon colong been a. sacred spot whither the Indians re- tained mu ch Xf:ari and wa.

and ore. * .. .. Tho t4)t:ll prod uct is !r dd 10 be at lC".t1,000 tO M of 100-ounce oro

The f u cogrou p wutlloc!1t ell in Auguttt, 1878, BDd workeil l rIo- tlmali way since by the OWllOrs. .. "* Tho toLaproduct to tho euu oi th e C0DSUS year \V3,S $11,565.

Th e olhor m . i n of East Canyon DJ..ld vicinity (\ l9:


6/39

OQUIRRH RINGE. 367Mines of E a ~ t Canyon and VMl1i t!J .

Tot',11 Ilengthof open-ings.Fed,

Tot.1prod-uct.

Elcbango and ),000 1$80,000.Sun"},l"e, l 000 '120 000Lm.. .. , I 'CbIOOdo Poir.t, . . . . . . . . , : . . . . . .and other:)Silycropo1tsHill,

}licer', ~ l i g h t group, (1300 . . . . ... ..

./

I

Rcmarbl.

S c \ ' ~ r a l hundred f('ct.of c u t t i n ~ ; produced D.l:l.uy thon :;:anc19 in e;lrlyday.Orea.."l!.:lYfI 19 ouucessil\'or and n to J.tper cent lC1d; eel!:slor $7 per ton;tot:ll product ,mzny thousandtons; l,:WO tonsextract(>d in ceo8tlft ) " ( ' ; ~ r . Bcaan7.a . . . . . . . , . . . ' " . . . . . . . . . . . . TIM produced con-I ~ i d e r a b l e oro.C1t ..elnnd lfin- 1,4::;0 100, 000 O ~ ~ O ~ l Y ~ $1.50 toin:. C-4>. ~ 1 , O O O per ton.'&l.Jalo:allwn.,.__ 750 3.5,000 Oro 1 ~ J . y $100 to$400 per ton.Poorman, . . .. . .. b 60 0 Small. Lit t le are overshipped.Baclhom _. a 300 . . . . . . . Ore ll.6.'Qys 20 ouoce!!silvor, 35 per centlead; much oreformerly pro -duced.lIcu.ntain GemADd Antelope, 1,000 . . . . . . . . SurfaceoroMS.'lY!t20ounces lIilver, 30per cent lead; aeveral thousanrl tonsshipped in 1877Rnd 1878 ,California .................. __ . . . . Oro A58:\)'S 2'> ounce..,silver, 55 per centlead,

III tod.o; also O I h ~ cullin.,..DrJ'l.s; . l s o ! ~ l t of severnl hu odroo kott.The llidden Ttea.suro mine [Dry Canyon] is sHuated aD

,!teep h.illsido above and t.bree--quart:crs of u. mile nortb.f!UC, of Jacob City. I t wa s located ill ISG5 as tho St.. lAu.is100.e by Gen. Connor'a SOldiers, who had boen told byl..u... o( the outcropping houlde .. o( gulena, LittleFl"u!\ WIIB done until April, 1870 , when it was relocated aslb6 Bidde::t Trenaure. Th e mine hM beeu extensively,but irregularly worked since 1372. ,. ,. The ore" ' ) '1 from 15 t() 40 ) U D C ~ silver and 20 tAl 60 per ceut1Cld. .. During !.ho four y('ars endi.ng April 1,18i'S, 28,-(00 tons wore m.ined. ~ i o s t oi thitt . -U !1J'DeltedIt Ibe Waterman.sruclter at Stockt-on. Th e cash rec.('i vedC-:.rlhiaIUnOUc.t of are, whether sold rl.s or o or a. I bullion, "3 'i q . mo. Several thousand LQllS of ore .,..ero p-roduced,nil< to 1874.

E !'be Chic:J,,"O ruille W,," located in )871, nnd ..,Id to lU I,ngloo eompany soon aiterward, Tho mine WM worked~ I . ) o , y for ~ e y e r n l years bu t has heen idle ainca"I Th ' d ~ ' hI y12,000 0 mlne produce con..ody, nea ton &:~ I i l l e r I t Watl worked \'igorou:dy hy them uut.il 1575,when GislXlnl bouHht th e remaining 'h\' o-thirds interestfor $iOO!OOO, mOTtg3f;bg the wholo to eas!.crn co.pit.ali.8ls (ortho monoy. Ab 'lut three months ruler tho ~ l o a. fault wasfound, ortho ore ('h'lle " pinched," o.od ooly Q 61lln.ll prC3"pectins: force "'Q.S t"mployed until June, ]S79, sincc whichtim e it been idle. Th e tola.l product wasDot known , even by tho original ownOnl, tU:I th ey dividedI.he proceedg nfl.(>r the tctle of ('adt lot. Dy one it 'wnsp:a.("il IIOmewhnt o\ 'cr aud hy nllotbcr NJff!cwhnt \lnder

Th e )I ono tUn.:ld sil itJ in th o r:l,'io c SOt) fee Lbelow the~ r o n o minc . Work W, lli hegun in ISi2 or IS7:1 . Th o tun.nel a.bout 1,1.00 feet. in I("Jglh . Th e K e a ~ : u g mino, located hal! a mile we:tl of Jn.cobCit.y, was d i ~ c o v e r e d in 1871. It It Th e 'tot..:ll productwaa unknown, perhapa $1,000,000. .. few hun.dred. tons of 4O--


7/39

368 ORE DEPOSITS OF UTA H.METAL CONTENT OF TH E ORFS.

O UI on S r t I C ~ O U S OIU:S.Tho dry OL' siliceous 01'03 shipped to smelterst.he Ophir and Rush Valloy dist ricts co mprise gold und sil,er orl?S cncL'ying copper andleud in amounts too smull to be of .. .lUG. Themines. named in order, nccording to tho frequene:y of their shipments in the Illst decade,were tbo Chlorido Point, Lion Hill, BllfhlD,Qu een of the Hills, Hidden Trcnsurc, .und Sunl;se Tunnel. Tho UVC'ugo grude 01 the ol'eshipped is shown iII the following tubl,,:DMI 0; rilicoous (i re, 'Cllh al'c,aye, fPlt!allic C . o r J ~ l t J . , prrWlI.-ccdin Oy,IMT ((I,d u ; J ~ Valley dl(ricl'l lud "ltppc.d to 6:mdtnj,

J!J{)3 -1 911.

Yea.r.Quantilvh o r t lollS) .

r.old Si h,et Co(;.1"0 (oun '; " ( : c ~ per per cent).Ion ). Ion).

Lead(pe rce nl ).

A\, (>T-agegr


8/39

OQllrRRfI RANGE.ducelS for t.ho past decade, named nCGordingto {ue frequcncy of their shipments, are theEnrekn-Ophir, Hidden Treasure, Mono, Ophir .Hill Ut.ah Queen, Kearsarge, Queen of ther r ~ , Montana, Surprise Tunnel, and Selah,TJle a'l'erage gmde of the product slupped ISshown in tho following table:Coppt'f.kad ore altd eOl1fXr rat.cs, 'IJ.'i lh arf'Tll.qe metallic ron.Imt prod.u:{.d 1'n ti l t! Rush Valley and Ophi.r di.ttr1cU andt ~ i p ' p i : d to enid/us , 190,;-191 i .

C rude orr., ,

I I Av(' r.Gold Silve r C Lpoo age

Year, QU:1nti t \'(oI,,;rttorlA).Gold 8ih'erI( " ' ~ \ l l l e (OllJlCN ICopperper pcr -- (perton). ton). cent ). J ,c;ld(pcr('Cn l ).---' ;--- -.-- - - - --- ---

1903, . , " H .2 1O190-1 . . . . 16,7071905 . . '" 19, 0621907, . . . . 8SO24,2 0,18

1.00

) ,). $513.47J:l.0330.003.202,913.11}4. 70

9. 127.079.1921.00Y e ~ r (\':!Iue u n c e ~ (oCfrer ( r g r o . . ~ pe r per pe \':duo ZIXC OIU: A:->O C ( " E ~ T " 1 ' &

369

Aver-1"''''''"a lnepertou.$25. 1821. 6.127. 58GI. 57QU:llllit "(""irtOODB) . ton) . tOil). cent). ('cut ), p('r, . .

Ion. : Tho "lite ores nl'o t.hose c n t u l l l m g : ? ~ pOl' cen t-- --- - - - - -_ __ !Or mo ro of 1inc, il'fc"pe


9/39


10/39

OQ{71R1:!-[ RANGE.

RUSIl VALLJ::Y ( S T ( ) C K T O ~ ) DlSTTnCT.GEOGRAPHY.

The Rush Vulky di.t.ril't is 01 \ the wost ,ideI tho Oquirrh Rnnge, nbout 40 milcs sout,h-~ . c : ; t of Salt Litke City. The shipping pointsfor the dist,riet nrc St.ol'kton, on tho LosAngel"" '" Salt Luke Rnilroad, and Bauer, asidin" nonr tho portH 1 of the dmin tunnel oftho nUlliun eonlitio ll Co, All ore, exceptingthut token through the Bullion C.olllitioll tunnel, is hlluled by tcnms 1 to 3 milrs from themblCS to the railroad,Tho moin mincl'IIlized nrelt of t.he RushVc,Uoy (Stockton) district is rnthCl low downOil the western s lope of the Oquirrh Range,the ou tcrops of tho mnin oro bodie>! boingbetween 5,000 Hnd 7,000 lee t :>bove sea level.Iii tho higher p!lrts of the range the topoglophyi, rugged, bu t in tho lower slopes it is rathersubdued . The earlier developmon ts werema inly by winzes following the oro bodies, asthe relief is not sufficien t to mnke it possibleta gain depth rupidly by tUIInels , Severnl orebodie, hllve been developed hy tunnel", how'for, Rbove the wlI,le r level lind the large flows01 wllter encoll.ntered us the workings \VOI'edeepened made dt'llin tunnels : nece.ssnry. Alarge lIow Irom tho druin tunnel of the BullionCORlit,ion Co., the oll ly deep tunnel of tho district, is utilizod for irrigation.

GEOLOGY.S E D l l { J : ~ S T A n y nOCKS.

The sedimentary locks lU'e interbeddedlimestones llnd qunrtzites. On the south,townrd Soldiers Cltllyon, limestones predominnte, but townrd the north quo,rtzites becomemcrensingly nbundunt nnd uppenr to greatlypredominnte in the centra l an d northem pruis01 the district, This rtppenrnnce is duo inpart lo the fuet thnt the arell is Inrgely covered by' bris nnd that the qunrtz.ite, beingthe more resistant uecumu lutes IDOro r.'pidlytit ', the limestone. Underground the < ] u n r t z ~ 'Ul IS not eO llspicuous, hut th.is is in purt be" , ' 1 1 3 ~ prospecting hilS beon Inrgely confined tot!le lirne; tone !H'ens,The quartzite is commonly fino "t'oined II.nd~ . t 1 \ c r close join ted nnd readily b ~ l l k s down1111.0 allgu lar fragments, Th e limestone is blue: black nnd whit.e, Tho blue beds nre snid tonenrly pure calcium clII'bonate nlld the

wlut.u l l e d ~ to 1>0 (lolomitie nnJ ( ' e o \ l 8 . Thelimestone of the Honerino mine is bluo and liesbetween heds of w h i t ~ siliceous mngnesinnlUUl'ston0, locally cnlled " dolumite." Withhyd rochloric nc id tho blue l i m e ~ t o l l c cfTcn'escesfnr moro Ireely (,bl1n th o whit(), I t hilS aspecific grn\'it.y of 2.G2 und the whitc oi 2.88.Pnrtiul chemical ..nnlyses by R. C. '\Yells (Ifthe blue limestone nnd t.\w whito limestoneoverlying it (see p. 174 ) show tbnt t h ~ blue isnendy pure cnrbon,'te, whe.'eus t.he white isvery sil iceous. The close suniln rity 01 thewhite be.d ulldcrlyulg tho blue limestone tothut ove l'lying it wru ..nnls t.hc conclusion thnttho two nre of essent.inUy the slUlle composition,8nd it is probable thtl,t Itsunilur chcmiml ditTer-enee exist,s between t.he blue fmd white limestones in othm' plll't, of the district,

r o ~ : : o u ~ ROCKS.Therc Ilro numerous dikes in the district,

bu t thoy nre' not c(lnspicuous on the surfit,ce,IlS they weuther more readily thnn the inclosingroeks nnd lire obscul'"d by dGbris, ~ { n n y flreencountered in t.Jw mine workings. In genem lthoy slrike north, like the main &sures of thedistrict. They TIluge in thiekuC>IS from It lewinches to 60 foot 0 1' more,Tho dil


11/39

372 ORE DEPOSITS OF UTA 1I.Th e sediment.uy rocks in I.he distr!ct h,,,,e ,Iisl.inet.]y fj,yornble. A similnr condit.ion h

b t been noted il l othel' districts, however, Dol.abeen CDt bv 1\ scries of fissures th"t I\re a OD J I in the Fish Sprin!rS district. IlIld rna" be plll"l\lIcl with the nutir.line :l.Dd Ilre most st,rong y J

d I d ' t ' T h e y dip west u.u- eOlL,iderl1hlo import,anee. Alt,hough t,here do0"0 ope nenr I s creSo. b . , I ' III t . 'h t gl' some renchin" 70. no t "PIX'"r to e any mtlml1le re ntlOn )etweI t y n a H'o or s ccp lI,n e, ."". ks d' d -' h'f l I'ff t fi 0", sonlewhat m dip 'mtruslve roc 1m ore e p o ~ l t s , nevert elle (lOren ssures 'V__ ; " . 'n.s do nl,o indi,..jdunl fissures at different points . the l"?portan,t Ore d c p o ~ l t s nre not fn1' fro

Sorno movoment h'L' occurred along nearly all int.I'USIVO bodIeS n ~ e absent from partst' fi ' I n ost of them it is no t more the range where m truslvo rocks are absentne ISSllrcs. n I., , " fi I d'than 1\ few fret; in one, however, it is us much Faultmg along sSW'OS IUS lsplaocd so

1no f ' t beds from 1\ few inches to 11S much 1m 120 fcag co '.ORE DEPOSITS, Th(l mrun movement appeRrs t.o have t.ak

m;OLOGJC Uf;LATIOS8. place before tho are deposition, though some, it was nCterward. The fact that t,he f&ultPructically !Ill I,h" larger oro bodies arc found preceded t.he minerruization makes it no lin beds, locally designated eust-west "veins," import-nnt t.o find t.he sepnmted portionsof bluo limcstone. neur the intell;tlctionofnorth- the oro bed, as both are likely to h,we be8 0 u t h f i s s u r c s l m o ~ u s t.ho north-south" veins." mineralized.TI,e ore occurs lIS shoots, pitching northwest,with theintcrseet.ion of tho oro beddillg and fissures. Soma repl:>eements eX t ~ , n d along t,he orebod,ling for 100 Ieet, or even moro, and SOlTla foronly a few feet from tho fissure. Indiyi,IUf,1shoots vary ml\rkedly from point l.civnntugcous inindj"idU:1I clISes. MIUlY of theso intersectionsshow bu t litLle minel"luizMion, hu t fL large perccntllgc of them 8ho\l'some.

"\lthough for the most part tbo ore husformed in ccrtlUn beds, somo mineralization ispresent along the north-sou th fiSSUl'OS, bothbotween t,he dolomitic or siliceous w,\lIs !\Udbotwe..,n walls of the purer limestone. Thesedoposits w'o commonly !;m,iller thl\l\ the lime, tOllO replacements, bu t some of them Olltainoro of relat,ively high grade'"

'No roce.gnizcd close rollltioll CXists botweenthc dike rocks and the ore deposits. M.\Dydikes oe=py the north-south fissures, anti orehas fO.TIDed adjaC


12/39

OQumnH nAXGE, 373bODnto r e s ~ m b l i n g chalk, The Rulphotc al1- 'l1le Hone.rine mine WfiS located in 1865 bvalesite is doubtless prE'Sent to Mme extent., Gen, COlmer and in enrly days made .\ I n r i ~ though not importllJlt., Plumbojtlrosit:e, the r,roduc.lion, pstimuted at about 81,250,000.hosic 10n,l-il'on 8ulpbllte, formed by the oxi- 1 he Inrgest oro shoot., ",web occurred at thedation of lelld nnd iron sulphides, Was noted int.e.rsection of the" Honerine '1'6,," or hed offronl t.be 600cfoot tunnel level of t.he Bullion hlue limestone "lid 0. prominent nort.h-sout.hConlit.ion workings and from the Ren Hnn'ison fi""ure , has be.en followed practicnlly continumine, I t is no t possible to stille how .bun- ously, t.bough pinc:hing find swelling, for J,200dnnt it is IlS ao ore mineral, ns it has not to 1,300 feet d O \ \ ~ l the clip, Vnlullble oreocneralll' been recognized, Ziuc is present in shoots hnve heen developed in oth,'.r beds of" 't.he oxidized ore us the c"rbonnte smithsonite, limestone at t.he intersection of nnrth-soltthbut tto hodies of o ~ i d v . o d 1-inc comptl""blo fissur


13/39

374 onE n ~ P O S l T S OF U'l'Afi.stoncsprcdomin"lewif.hinter:)cddrdlimcstone. ' to 1912 tho or"" ' from the Ophir "n d Lion H'1110 dip ot' t!t(\ h,,"" is "1'0 stceper, heing 1l1"1.r iy dist.rids were t'reigltl.ed to St . J ohns andperpendieulul' 01' 10("111), dippillg to t.i1O ")lIth. from DI'Y Canyon to Stockton. In 1012Dikes of po_ph.rl' !t ir.. rock , ::;i.milnr in ch;lr'lcter standol'd-ga.ge 1'::lilronJ Wits completed fromto the other dikes "f the d is trict., Ilre present. .Johns t Ophil.Tho sedimclltlll'Y sel'ies f10 I'C, tiS fnrt.h cr soul;.t , The distl'i el. is 01\0 of strong relief. The eriq cu t hy nort.h.,ollth fj" ,UI'C;; t.llIlt dip rather of t.he rn"ge is "bout 10,500 fect. ulld the plnstc,{)ply w


14/39

OQU IRRH RAXGE. 375Colllo"io,n. Gnnsl ,,,,lJ;le Hill porphYTY is shown on IIlower C"rboniforOlIS. recoonaisstUloe map by Emmons nnd Spu,'!"'

Sufficient fOSbils have not been collected to l\S a sheet neu.r t.he summit of Lion Hill, butshow how much of th e grOtlt series of limestones the rock is diflkult, to recognize in its bighlybelongs to t.he periods between CtUlIbri"u lind altered condition, and" detniled study of thoCarboniferous. No fossils of Dovonian, Siluriun, areo is ueces.,ary t,o determine its extent nndor Ordovicinu "ge wero eollected, nnr! no sed.i- posit.ion.ruents mny hnve been deposited during t.hose North of Ophir C,myon dikes c u ~ t.he limeporiods, though this does not. seem probnbl(" ns stoues. Ono st.l'iking g


15/39

376 ORE DEPOSITS O}' UTAH.STRUCTunE.

Fouk-Folding is the most prominent stru,:"turnl fellt.lIro in tho Ophir dist.riet undbellutifully shown on t.ho steep slopes of Oph.lrCanyon. Emmolls nnd Spurr I b ~ v o sbownthat t.ho southern end of t.ho OquID'h Rnngeconsists of u brond f1.nt.iclino Oil tho west nnd aCOlTcsponding 8;ncJbe on t.he eost, botbst.riking gcnel'lllly nort.hwret. 'n e crest t.henntieiine pllsses "Lout. through tho sumrrut ofLion Hill, through tho main workings .of .t.heOphir Hill mine, n li tt.Lo west of tho pnncIJlulmines in Dry Canyon, Ilnd through tbo workings of tho Queen of t.he n ll mino on the northside of Dry Canyon. . .From Ophir tbc rocks of t.bo western nnt.Jehacdip away in nil dirediow; in n p r o n dome01 ' qun'lullvCl'Sal st ructurt'. Tho dIps to thenort,h nrc ruthor pronounced, hning ns much25 t.o 30 just north of Ophir nnd becomingsteeper fnrtbel' noti.h. Sout.h of Ophir C n n y o ~ the dips Ilre much less.

Faults.-In dotermining tho principlll largofelltmes of t.his pnrt of t.he mngo fnulting hosbeen much less important tban folding. Somefnults, bowever, nre importnnt structurnllyand somo of less m n ~ n i t u d o nre import-ont, 0economically.Tho import.ant Ophh' Cnnyon {"ult strikesnortb of east, ne.arly pnrollel with OpbirCnnyon,and dip" steeply south. The vertical forco

thnt domed the strot" oppareat.ly caused t-bemto broak ulollg the line of this fnult and rl1isedt.he port.ion to tho nort.h more thon that to t.hosouth, hringing tbe Cambril1n quartzites Ilgainstthe lower port of t.he gron t limes tono series.Tho displucoment WIlS grontest 'ltt tho centerof tho domo und doereflSed both to t.he east nndwcst. To determino the t,hrow of the fnultwill requiro dctlliled gcologic work to conelll.tothe. corresponding horizons in the limes tones ouopposite sid,,,, of Ophir Cilnyon. It. is evident,however, t.bot H,o t.hlow is lit lco.area detnil ed m"pping will be required tdeterlJl.ine t.be position Itnd t,hrow of the ruthecomplex {"ults. Some of the import.not Obodies of t.his dist.rirt. lire report.cd (.0 havbeen cut 0/1' by faults.FisSlLl'es.- 'I'bolimcstoncltns been hroken bfissw'es that t.ro)ld gencr,,11y north. TheysholVlittle displncement and UI'O importllut chiefly achannels fOI' the ore-bearing solutions. Thecan not be rccogn ized or trl\-ccd on the SUface IU1d tbeir dis tribution is lmo"" onlso jl\1' us they hlwe bea n cncowl!ered imino workings. r o m thi s, however, tbeappear to bo most nblwddnt ~ e a r the crestthe Slnt.idulO and to decrens,' 1\1 Importnncethe distnnce {rom the iucreases. Thisof course tho condition thu t would he norm

if they hove resulted from the bonding thlimestone beds, for t.he crest o( the antlclmwould be subjeded to tbe gJ'elttest s train.ORE DEPOSITS.

. The 01'0 deposits of the district show a ?ene,roJ simiJnrity .in modo of OCCWTence bu t diffgreatly in mewl contents. The Dry Canyoand Opbir Canyon oreS carry len.d-silver ansome 7..inc nnd copper; nnd the ores {\'Om LioRill r,arry typically silver, commonly ~ mgold and load, but very little copper and zmRKPLAC},;lIKNT DEr091TS.

Pract.ic.illy all the deposits of the distrihave formed us rep!tl-Cemeots of certain bedslimostone in typical shoots or pipes followintbe intersections of the repltlced beds Rnd tl1ore-bearing fissures . In detail, bowever,. thediffor considerahly. In some replllCement h8extended for n collsidernble distance from lhfusures nlld bus formed tubulnr bodies of orin othors it hns forroed rel'lJ,ivcly sman pipeTho position of t.he Orc sboot is largely controlled by the position of the replaced limestonbed and the 01'0 fissure. Most of the fissureare very steep, nnd m n.ny of them are nearlvertic"l, but t.he dip of tho limestone ~ e dvl1rie.s grOilt,\y, and this dip govel11s tbe pitcof tho ore shoots .

ALn:HAT[QX- Ot ' TUB L J l n : S T O ~ E . III SOIllO plnees the alterntion of thestone by the ore-bearing solut.ions consISmainly of It replncement of tbe rock bysulphide lIIinel'Uls I o r m i n ~ the primor}' ore.


16/39

V . B. Q E O L O O I SURVEY PRO.IlSSIOS.\ L rAPEU II I PI ,ATE .J:X!.VU

-,,_ I ~ I E N 0 . ' ROC K FROM TH E OPHIH IlILJ. MINE. S II OWING ALTERATION 01-' 1.I;\Il;STOi\'F:'THAT CONTAINS ORE DEPOSITS.L : I : - ' C ~ ooo ta.ini1J.,!.; r.ryollt'.h uf P1rJ '...o IlIf'U comoo .d I/ur,dy d e:pidotii ",jl!:a orLhlX:IoM uno.l quw-tzi i.Jltcnmliol{ bond .eQUIpage;' 1.lrl'tly or q W f ~ r l . l wttl ( ) t \ . l t o c l T wo- third. naUlral i ! ~ .

8. PHO'rO:'lllCROa HAI'H SHOWING GftADATJON FROM EPIDOTE LAYEH TO QUARl'Z-ORTIIOCLASE LAYEn.1..ow(,f' n:.;ht l l I ' ( iJ, mdillly f ' p i f I Q ~ ~ : ;;:!n lrllt bu nd. wainl)' Ql1l\Cl7. lind ,: rai!Lo.; JIF i ' 4J: Uppt'f r.:h U/"C.J, fJuar!./. aa d or !lrocl:1.ooc i t h 1 I o O U l ~ cptJot.c. I=:ular .. .u:w d l:W lc lcnt.


17/39

..

U. B. G E O L O O 1 C A 1 flunVET PROf'ESSIONAL PAPER 111 PLAT.!:: XXXVUI

..4. VIEW 01-' WEST TIN TIC DISTRICT IN TH E ViCINiTY OF SCOTIA MJNE, SHOWING CHARACTERISTIC EXPOSUO.E OJ.


18/39

OQUJIlRR MNGE. 377other pl;'C'lS t,he elll\raet.er of t.he limestone adjacent to ~ h e ore hu s bcen cnt,ird." "hanged.In the Dry Cnnyon ,wc,' the limes tonc showsrelatively slight tllt ernt.ion, It. undcrgonesome though u , l l l y not pronottn ec.d silicificnt.ion allli contains SOll',e s ilicat.e minel'ok Vci:1-like Illn,"es o( t,remolite tlnd wollas tonite inlimestBn


19/39

378 ORE OEPO:>ITS OF UTAH.],[oroo \,('.r, I.here h ' i ~ beell considcmblc r""ltiJlgth.t cun be worked (lut SJl.(.isf"clorily Oldy bydelai led mopping. 'l1te following not es 01.\ themines nre derived in purt from OUIly des ("flptions nnd in purt fJ'om tho writer's o b ~ e r " H -tiOM. Fnl'sevcl'al mines no dda. nl'O H,Tlilablo.The oxidized Zll!n and ("opper orcs have beendescribed bv Loughlin.'

lliddm Ttwsure mine.- Th o l1idden Treu5-m e mil:e was t.he {In;t 10 b" l o " n t in t.ho DryCnfl,'un nuc! l l ~ he rn one of (,he In.rgeo::;t proc ~ r . The liroostolle heus s(.rikc "hou tN. 70 K (lml dip "bout ~ W . Th ese beds

,we cut. by fissll'cs striking N. :lb" to 400 w.Ilnd by s ~ v e l " r l l porphyry Itik l'S, which, l1OWever, uppeou llut to be int.imat.ely IIssociatcdwith the oro.The ore deposits have formnd us a replacement of tho limestoIle udjacent, to the f i s s t l r ~ s . Tho worki!lgs ]11[\'0 heen describod "S follows:'

is mentioned as occurring in tho m i n ~ bu. . , that time ZinC ores were of no vnluo. Inthc principfLI produc tion Was ill the zinc carate ore t:hn t wnil h e i l l ~ ta ken f!"Om old stofrom which lead 0("(1 hud heen cxtmcte(1.parent.l), tho zinc or e "'us nenrly f,."o fromund Mc()nliog to descript.ions milch ofIC!.d ore mined wus cOIHp"mtil' ely freozinc, suggesting tl sopal'nt,ioll of the 1\\'0 md l U " j l l ~ oxidatiou. In places, ho,,"(\vo ,.,oxidi r.ed zinc ore could he trnC n t . 01 the w o r k i n ~ (In tbi81!trotllID J i u w ~ t J . m e l.!udt1r th e- II idden 'rrC\RIIJ'c. TbEee pipe!W:\l:I 1.r-oo (0(0\ on too dip OM ".j() f('('t IloriWIIl:lllr. to wit.hin :1. few ! ( ' ~ t of th e BtlffllCC. roreroo oDly h

Since tho abovo dpscrlpt.ioll WUI:\ wTitt.r,ll, n. irou cap, dh'orgcd Mmowbdf as b ~ ) ~ w e : ~ :lowor tunnr.! h.s bcoll ,h.ivOll and COlmer ed They we'" In son.",1 .bout oct 10 am. h I I varied in shape (onwkrnbly, mpeciutly beyondw,t. t le 0 d workinz;;. O f II d J:lOO f t .n I d - - "- ' 1Th .. -' DO pl]te WI\.'i 0 OWO ) 00 . t. . e Pl'oouotton III tho eorly dovs 'YHS from Iintil it was 0111\- G nc1:11 in diameter. whon \fortho loo.d,'ilvor "curbonate" oro". Zinc blclldoIb.udom.'\. This had f',e amnller pi]>" brancJUng__ it . Tho ae


20/39

OQUIRRH nANGE. 379rotInl'l. :\ flC( 'ond rise brough, it. to the llidden. ' fn"'\l8tlrevew. The ore Of"b"rous, ~ Y ; I \ ; frum 25 to .3;') ouncessh'd' and irom 10 to '13 pl'.r f'cnt I(RII. On- .tho ~ i d ~ o(tho piptl thP.fp.W l 1 . ~ u a l l y (rom G ioebes t.o a foot of a. V:l.!lloleiI o:(iJe of iron, rcxluonUy 5ta.iOP-rl hy I'opper ('3r)lOl1.11.'l!. TlJe tob11 ( ' l I t t i n ~ amount to :lh()ut. 5.000 fcot.Tbr. nline prudurtxcoedinglv irregu_

lar mJs..""nl ~ l O O hus been oue of tho i m ~ r t producers of theper toc. districL.

The )(ono tu.nnel is in t.he ",ulch ahout 800 The sedillUlntary rocks lire limestones offeet below th " upper workings snd is designed l o w ~ . r Carboniferous age, probably neur theto cevelop tho urell at greuter depth. Some base of the Carboniferous, for fossils of this ageOre bas been found ill this tunnel, but us vet no lI'ore fou.nd only a few hundred feot below thebodie3 (:ompu.rnble in nmount lind vuiue to oro borizon. The .main development is n littlethose i.u the opper workings hove been found, to the eost of the crest of th e ant,icline, where.Q",",: of the Hi.UoS m.;.nc.- 1'he Queen of Lhe . tho Rodimentnry beds dip .bout 30 a littleHills. mille, ineludillg th e Queen of th e Hills, cust of north. A promiuent porphyry dikeFlovillll, and ){uhogany 1 0 c l ~ t i o O B , ""19 no t striking obou.t nodh nnd dipping steeply enstIII operaLion at the Limo of visit. These c1.illls cots tho sedimenL.ry sericR Il short distance,hove boon desc ribed liS follows;' west of the main workings. Th e se.diment .. .yTh c l ' roo.ks are also cut by fISSures slriki.ng u lit.t.le

CflQ iU lJ\8 am on threo c.himnc\'s in : l hedded \'ein~ 7 m 1 to .6 loot. wide, dippiu).": 170 Lo 250 W. between a east of Jlort.h llnd dipping steeply 0ftR L.be lcooue ll luoatone ;liJO\'e


21/39

380 ORE DBPOfilTS OF UTAH.Some minertllizcd l'ock, is prp.sent but no orr, hasbeen found.

Tho principal primnry sulphjde minemls nregnlenn, pyrit{l, sphalerite, and chokop)'1'ito.A


22/39

OQU:RRft nAXGE. 381Tite mine w'us first worked tlll'ough indine.s

on t.ilO dip. The main incline follows tho oret a depth of about 1,800 fcrt . A e1min "'Ido,rkin" tWlDel, through which the ore is trans-m . ' .rted by ciect.f1c tnuns, IliIS b e ~ n d"lvcn to1'0 . ' I 1 " 11tho 01 " body from n. pomt Just n )0"0 t 1e ml .1 Jorge tonnage of conrontrnting ore is de"eloped in tbe mine lind enn bo cbenply extructed,owing to the lllrge s ~ e .of the ore b o d l ~ andthe small amount of tImoN' reqwred. In 1912the cupaciLy of the 150-ton mill Wus nboutdoubled.

LlO:.f DILl .

The Liou Hill urOll is south of Ophir Cnnyon,the principal producing Urea being nelu' thes ~ m n u t of t.h" lUll. (See Pl. x X ~ \ ' 1 r r , A. )Owi"g to the high l:ro.de of (he Ol'es, therclo.t.:vcly simple recovery o( the met.uls, andtho e3se of deV'elopment, t.he deposits beingncnr the sldnce und in a position favorable to. r l , , ~ e 1 o p m e n t by tunnels, this section of thedistrict was el1l'ly developed l.od for severuly c ~ r s in the seventies WaS nn important producer. With the exho.ust.ion of the richer nndn\QI'C acc=ible deposits Itctivity greatlydined lind fol' many yom'S OPOI'I1tiOD9 wercconducted principn.lly by lessees. Recentlysc"ernl of tho old properties hllve been rombined as the Lion HiU Consolidated Co., nnelmor" systcmlttic development of its territoryhe.s b""" uuderto.ken.The sediment"ry rocks of Lion Hill oremainly limestones with interbedded enlcnreoutitih.ll's. The Im,"er purt of tho series, like thutnorth of the co.nyon, is probnhly of Cambrillnage, aud for soveral hundred fee.t below thocrest the rocks Itre of lower Carboniferous Itge.Tho igneous rocks consist of porphyry dikesand sheets. The most important body outcrops Ilt numerous points around the hill neo.rthe sUllllnit nnd appeal'S to be a sheet, thoughit hftS not been sho"'n to be continuous. Ithas been cOl'l'elllted hy Emmons and Spurr Iwith tho Engle Hill porphyry of the Mercu I'district, bu t in several plllces it is COllrgergrained, mom porphyritic, und IDOre bllsic inappcnrunce, find resemble., mOl'e elosely the"Birdseye" porphyry. 'The other porphyry ison Porphyry Hill and Porphyry Knob Ilnd isthe "Birdseye" porphyry of Emmolls andSpurr in the }.orel'Cllr district.

lOp, tit., pr . 377-379.

TllC nurt.hwctit-southcllst ".nticlino is bellutifully exposed in Ophir Cllnyun. The domes(.ruct.:Jre in this anticlino ccntering Ilt OpuirCltnyon hilS given the rocks 0. slight sout.hwnrdd'p. The rocks here, liS well J :O north of thecllnyon, hllve been broken by two series offissures und fnults, 3n e : l . S t ~ w c s t sori11'0 mt.herabundaut.. The orc is c.hamctcristiclllly I lsilver ore, though it contllinll consiuembleleud and "old lind in pllleL's It little copper,zinc nnti7uony, and lIJ'senic. Tho typicalu 1 n ~ u c mineI'll} is the silicified limestone, bu t0 1 0 ' .b rite nl80 occurs, nnd calcIte IS COIllDlOII.n . . I 11 d "tnl " .Locully, scrlmtc: c,omnlOIl y en e c, ISpresQnt in c.onsidemble nmounts. In ~ o m c plu(,," tllll oro is surround"d hy n gray, frll,ble


23/39


24/39

S. GOu)(;IC/,L SUI1\' J::Y

VIEW O}o' :'\IERCUR BASlN A I ~ D CONSOI.lD


25/39


26/39

383QUlRRH RAXGE.copper, nor ~ o l ( L 'l'he. gold prodlldion ofCump Floyd dj$tnct. , whwh hl""llrnn imporlont. \";n tc r ot 1 ~ 8 ? ! ) O ~ o m e work was dou o on th e )( ercllr lode.A .1lno le i. 01 Ih or 1 bin 1892, Il.mounted in thut. IUHI t.be " " r ( " " ~ c J i n g year to n.bout 10,000 ounces.Gemmell' g'vcs the following his tory of t.hodistrict up to 1897,When the dh: .!rict. W ;""I8 org.:w h',ed on April 16 , 1870, it

n:l1!Ir:llly ' . \ . ~ c:all (I. and during the

I G It'mme I, R. c., EOI;. lIud :\lIn. J oue., Apr . Z ~ . 1 ~ " ' 1 7 .

. -... 0 "''3.'! .rong t o . c . ~ . s th e t i l tH 'OIl to theMO I, on Inlll :lnd trcatl'd with allp3.rent 8\1CC ee:tI. c . ~ r . s : G. R " P { ' ~ t o n :l IlU H. W. Bnmo l ' d li ITbe successful r e ~ t r n e n t of t.be gold oresbeing IlSsUl'ed, prospectors ng uin sWll.rmed in.Artbur Murphy and C. L. Prehlo 10C.Il kd twoclaims 0 11 t.he old site of Lowiston, staked t.homout int.o town lots, and Sl l ' " II new town (M oreur)grow to be flbout t.ho s n n ~ o size I1S Lewistownin its palmy dilys-llbout 1,.500 inhubit ...ut.s.J3y 1897 1fercur bud become" regularl.v olgo.nized municipulity, with n wll.tor system Ilndfire doportment. In 1900 t.be populll.tionreached 2,351, but dwindled in t.ho Dext demdeto 1,0


27/39

384 om; DEPOSIT, OF UTAH.1(etlll.x p r o d t . v ~ d in Camp FlIJyd diJrlr id by periods,a"

Gold. SHYer.O,e TobPeriod. \8hort. I grot;..'1 vrtODS}. Fine Value. Fine Value. recc"erounces. O110ceB.

]871-1881 b . . . . . . . . . _, . . . . . . . . . ..i: 929;003' . . -. . . . . . . . -. . . - . .. . 46,000 ,=%,930 $551890-1000.. . . . . . . . . . . . . . . . . . . . . . . . . . . . S82, 790. 00 S7, 912, U7:3 .... 2: 760' j' ...i:576' C7, 911001-1917 . . . . . . . . . . . . _, .- ............ 3.6li3,U90 538,052. P-7 11, 122, 5:H) dIl, 125,583,983 920,842. ,87 19,0.35,512 I ;8,760 I 57. ,12 I 1 ~ , O O 3

t were productd from tao S 3 C r o ~ H t O mhle..LSPUrT, J. R., '&OOmnic l l l i l oIln. MereuI' m i n l u ~ illsmct., UUlh: U. S. lil"ol. Sunny SJxI.e(!n\.h A"n . Rcpt., pt . 2, p. 3.:-1, I S ~ J . G A , ~ m x o nIICO\-tr y, $4.10 pert on.4.h'OflgO flICO \,! f l , ....N. per 1.o1l.

F,um 1890 to the clos() of 1917 there wereproduced in the Cnmp Floyd district by theJ\Iercur, Dcln,mllr, G e y s e r - ~ . J l 1 r i o l l Sn.crnmcllto,Sunshine, OverllLnd, Dnisy, nnd LII. Cigulepropertics 5,58:1,51:3 tons of oro valued at$19,034,984. All had milli, nnd nil exceptthe L il Cigu-Ie wero successful ill ext.meting fuirvnlues from the orcs. The first five propertiespnj!! $:3,881,323 in dividends to stockholdcrst.he total amount pair! during the greutes!'!>Ctivity ill tho district. Tho old )fercur GoldMining&MiUingCo. pnid dividends of $1,481,000and ~ h c Del.mnr lfcrcUl' ~ f i m > s Co. dividendsof $689,812.99 to August. 1, 1000.' Th()se twoc o m p a l l i ~ s ' hud mined up to t.Ilat time 1,045,-136 toilS of ore l l ~ n profit oC 52,181,401, 01 'about $2.09 per ton. From August 1, 1900, to1913, inclusive, the. Con solid,\tcd MOI'Cul' MinesCo. produced gol.l ill precipitatos ultd hullionvalued Ilt 810,549,377, rocovered from 3,291,-485 tOilS of oro (including some tailings), 01 '.m ''''crago ruc-overy vllluo of $:l.20 per ton ofmaterial t r e a t r A l n t , ~ total cost ' oC82.82 per l.on.Dividends p&id aggregltted 81,374,.500 to July31, 1913. Tho 1fercur & llrickYllrd-GoldenGute (DellLmlLr) property yielded 4,3:36,621tOIls of ore, from which 516,419,541 was l'ecovered, an average oC *3.78 per tOIl. Dividends puid during the liCe oC the combinedproperties amowlted to 83,445,312.After tho first test wus made on Marion nndMereur gold 01'0 by amu.lgnmat,ion at the Muriollmill in Lewiston Canyon, th() mill erected at}fllIlning iu Fnirficld Cnnyon Cor the tmatmentof t.ho ore in 1890 WI\S silnilllrly equipped, using

pun nmnlgumntion., I M \ : l ; o I . k 1 : l I f ' ( ] l (e.n"ur G(Jl.:1lUnesC.o,,, . rulll:],1 '('t:"rt felr th e yrarrcd.Ln!: Juna 30, 1001.

1 IdHb, p. 13.I TJ09o':t.ld, L. 0. , IIond Ifsgl1tr(', ll ., C>au.ida.ll o.n 10 tho :\(ucurdbtrictof Ut lh: PamphH pllhUSM(1 b)" Snll t.Rh )(in. RoY., p. 1913, LA.lttN from G. 1:'. ['(lylon to V. C. RoUc", d a t ~ t d ~ o " N l J l b ( r Z3 1914Ur . Peyton wns 1Iwo lh'hlF:' I"Iot RtI.(l'kt'rby, Cat. .

. In I> p e r s o l l l ~ l communication G. S. Peydiscoverer of the p r o c ~ s " t l m ~ made Mefamolls, gives tho e'll'ly histol'y of the Mermill fiS follows:Tho ).fercur miU was built under the advice and avision of Jcseph Smith, superintendent, at Manning iyears ]890-91 by the ~ l e r ( , ' Gold Mining Co., or.:;an

in )1::.)" 1890. * .. 1(0 The a.mount of gold firat !by this p r o c ~ oi nmj,lgn.m.u.tioD was $3,000, represenabout ]5 per cent of th e \'slue oi th e ore. Tn July,a car oi the $17 ore was allipped to Denver ior trial bcyanido p r o c e s ~ , whkh. sUC:ce&ifully extracted 02 perof th e " a l u ~ . 1'h13 amnlg2.mation equipment andcentrators wera then uiSC'..ard ed, :!.lld th e cyanidecompleted and st:lrted iu February, 1892, on om Ilverc$12 per ton in gold, of which SO per cent v;-rut sowed.

As e':pericnce WfiS gained in Lhe hltndlinthe orcs by t.he lle\V ey{midc process thewus ellln.rged. * In 1896 th.e milltrcl>t.ing 22,; tons of ore dn.ily, 01 ' al toge~ J 1 4 S 0 tons for the year, llve raging in v"bout SI2 pCI' t.OIl \1.1 gold, of which IIbouper c.ent Wil...nd the Merew' Gold Mi& Milling Co. wcrc combined and thereacl>llcd the Consolidl>ted Me.-{:ur Mines Co.

of t.he ore from t.he r { : l I r and Delamar mWI>S aCterward t.roo.ted ill tho Golden G.tethe Manning mill bein" used intermittentlythecolllpany {.ud lesse;s for the r e - ~ r e a t l 1 l e ntailings. The originnl {:ap!>City of the GoGate mill W08 500 tons but bv 1900 it wascreased to 1,000 tons oC ore d';;ly.'A 8umm.\I'Y of the pl'oduct-ioll and costoperation, i" gi veil in t.he r o l l o \ \ ~ n g table:

For 110 full d t ' ~ r l p t ~ 1 l of tho criftinol pllllnt on tho r>cfllloma.rsee- Dil\'C"tor nL\(lnt RfPt., upan produ tl'tiol\ of p redoWi I!lllla1.1 lopp. l S l - I ~ 7 , I O ~ .


28/39

Gross prod uc-tion.0 ;"iSU'mm4'11" qfcla . f imorc . an d l a i l i ~ trco.tl at u.c C 0 7 M Q l i d a r ~ d .Vucu'" Mina Co . '. mit t , ~ ' ( J lo J9J.? U,. OU ( ' " ( . ) m l . r ~ " y r l ! lHHU)

. . . . . da..etion. _.D i v i d c n d ~ .

Tons Average ~ a i l i n g s ther TOIlB bo..'16 Re- Value Mining ~ f i l l i n g Total Profitin como. are. oxidized Tot.'lltol18. daily covery. lo.ss. per ton. cost. c()I3.t. cost. per ton. Pcror\3 . tonnage. Amount. cent ofgross.- - . I - .- -f-1IIIIIII1III

$ 1 , ~ 9 3 , 9 0 3 . 8 0 ' . . . . . . . . . . .l , -457, O(H. 17 $1,712.50J,321, 009 . 63 9,277. 606 1 S , 5 1 6 . ~ 8 . 6 R H2,291.76 12,385. 15870, 887. 14 ' 9, J91 . 77 612,8-13 . 90 H, Hf) . 10 6-14, 3a3. fll 1 5 , 5 8 7 . 2 ~ 761,235 . GG J3, 182 . 10 613, I1S . 92 12,7 41. 12650,G95.70 7,933.49 d ~ ~ ' 1 , 133. 65 3,970. 9B

flO, 240, 175. 021109, 162. 64

.......... ..... ".......... . .. . . . . . ..... . .. .. . .... .............. _. . . . .......70,703 165,32"3126, 5:l8 176 , 2G8!lO,069 135, 10087,492 138,7:n107 ,607 1 7 ~ , 2 6 2 99,4017 J:l2, 1907l::, .1]97 131,6226i , 816 JJ 9, 776....... ... ........

288,295 875321,626 895 4.63 L 193S5,.l6:J 931 3.8-1 1.21226,701 630 2.86 1.032 ' 1 ~ , 026 6i1 2.07 .98:502,806 830 2.80 .956245,IG9 672 2.G2 .08226,229 G25 2.85 .92~ 2 , : ! 6 9 773 2. 70 .68231,631 6 3 - ~ 2.65 .9'1c 2 ~ , 190 659 2.32 .88


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OI!E DEPOSITS OF UT,\lf .Tho ehurucLPr of tlw oxidized ant! hase OI'


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OQL'tn r.H r:ANGE. 387lowing yenl'. The ore tlcnl"'.!. at. the mill i uhont 82.:30. 'I. t usmuch. In 1898-99,fl.CCordiug to CharlesB:Jtters,' another unsuccessful effort wus madeto treat the ore. In 1902 the mill W.IS againstolrt.cd bu t was closed at the end of the yearefter producing about 870,000 in gold bullio!l.In 1908 the mill was overhauled by the BostonSUllShine Gold Mining Co., wh.ich treated 125to 150 tollS of ore daily, beginning in May,1909. By July, 1910, the ore supply of theSunshine mine was exhausted after slightlyol'er 50,000 tons had been treated with anaverage recovery of 52.81, or a total of 5141,532,extracted at n m.illing cost, it is reported,' of8S cer.ts per ton, with only 20 to 40 cen ts loftill the taili.ng8. Dividends from these lustoperations ag.,OTegnted 827,261. In nil theSUIJ9hine mine is believed to h.IVe yieldedabout S22 1,OOO ill gold.

The Overland Co. erected the second millin the ramp, starting opemtions in November,189S, on ore from its property. I t \Vas th eJlrst mill in the district to use electric,,1 power.p m e n t Ul the upper levels of t he mine11'08 by an incline shltft filld in the lower by aVQrticnlshnft that cut the ore bed ut 1,600 feeton the dip. The first ores treated rnnged fromS6 to $8 P CI' ton in "old, but decrellsed to- - o.

I O l l t o Q . La. : . I t J in the ~ r l ! l U " district of l ihl, p::unphlcl publL-;hed byJs.{l lAlce lOn. RI! \".. 1913.

WEST DlP.Wrst Dip is miles northwrst of Mr.I'Cur

I l IHI Wos so nnmed from t.be fnct t.hnt the Iodesut that point dip about. 45 W., ill "ontrast withthe ellst dip in the MercUl' cump, on th e opposite sille of the ont iclinc.

Uining begnn in 1897, and in July, 1898, thoDaisy mill, with a cRpncit.y of 112 t(lIlS aday,'wns erected. I t is said to have produce d875,000 in gold precipitates up to the end of1899. In July, 1900, the Daisy mi.JIO and millwent into the hands of a receiver. The Daisyproperty' is opened by an inclino shoft to the700-foot level and had ore nssaying from 841.0 88 per ton. Tho total costs of mining andmilling amounted to 83 per ton. Equippedabout 1910 with modern machinery cOllSistingof elru;sifiers, mixers, and /ilter presses, the millw n ~ the first to make" sucC


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388 ORB n;:POSITS OT' UTAH.GEOLOGY.

Til!) geology of the ~ ! e r c u r district hilS beendrscribed by J. E. Spurr,' from whose report.the present Ilccount is Illrgely t.nken, though thewriter spent several days in t.he district in tbeB\lmmer of 1912.

SEDIMENTARY ROCKS.The sedimentary ro ckH arc mllillly limestonowith ~ o m e sundy nnd shul.\' beds, nil being ofCarboniferous age. SplUT hus separated theminto the "Lower Bluo limestone," " Lower In -terealnted series," " Groat muo limestone,"contnining two shulc mombol'S, Ilnd "Uppcr

In torcalat.cd serios," which he describe" as follows:'

Gnfl l limellton(;.-Next clbove t.he LoweT Ih t-9lated ~ r i C i j come-:t lh e (ormation which occupies the mootthe ll ercur lJi\,iin. 'I'hiB is a. compa.mtively uniform, msive limestone, oi 1\ dark gray-hl ue colo r, neu-1r lt.bat.of the Lower lim tmone. I t hre'le tha t i t is impure, bu t ~ \ U : : t . n ; J . l y : r i ~ of::. typic~ p e c i m e l l &hOW8 tbllt in reality it is veri pure, ~ i nonly : ~ 8 m : L l l llW .OUlJt of it180lubic IIl1l.ttcr. I t is a.n entire::km'colTslimestonc, b ~ i l J g quito free from ml1J:,"'1lesia;color is due to (.he preMtnce or small :U.QOUlit oi org.\materiaL Usually tbe outcrop i:i very iresh, tho changmatcri;lI heiHg carried : . L ' ' ' : . L ~ ;1.3 bst as produ(.'(..l(I, bULmany plaCe:! the nltcraLon procluct.::l have accumulats:) tUM the rock is more or l c ~ nltered to a depth of m2feet. A not.'l.ble instance is t:ecn iu th e cu t (or the r.".ilIDjust.8Onthea.rrt. of t}19 SUllri!te shaft , whcro the rock ha..


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OQU II-:RH RANGI::.. 389Ju.-.t :,bo,'c lhQ la rger h a l e belt usually llliu-bedded .

fOP}(lw bat tlbo ly liOlC!5toues, nre tran:ci.t.jotmlthe 8b31() and the . . . J . . . . i v e blue limcstone. 1 ' l l t rocksaro dbtlogullihcd by th e thin piatC'd in t) which they spliton wf!lltherin g. and the by brighter redd ish. and' ,greelliMcolor of the t l y wmthel'cd tipCdmcM. There 00eruu-p boundary between {,he till,'.!)' l i m t n.od therock! o.b(}\re j'l,nd below.Upper 17llcoClrlali!d . s u " ' ~ I I . - . \ ' C thQ u pper l'ob11e bt"hthe rockt& begin to contain a r c n a Iny0'n!-, l!epa:rntodb\' ,'ery Ihick bed., oi pure l i m ~ t . o l i - O . l\ t a di.slance of I&bou\ 1,000 feet above th e top of t3e Ilha.l'e the:te l':mdatoDebeds bCODlO EO common :'L.S to mark the lower limi t. of \lll

o ~ t e d erupt.ive rocks, which forDl sheet., or swalldikes 1n li:lo Great Blue lime! tOl1e. Doth o j rocks$rff... 0' fcss.il br!o07-01U\.$ 1.11::1 lH\lCbiopod.se powdQr. TheWel\t.hered rocks nre usually of .a crea.m.yelJow color, bu Lthey :n e ofLen stained in & variety of ebadcs--red , yellow,green.ish gray, or lMW'ly bla rk .Tbe Easle Hill porpb)' 'Y . . .m. to beaplit up chiefl), in totwo principnl sheets, whi("h!\rQ well exposed al l th E! sidesof Eagle Hill. Dotb are in a general way pa.mllel to th e:bedding of the limeswne, so tb at they are true shce ls;. inplace!', how-over. the bound r..ry


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390 on E DB POSITS OF UT,\ I I.all " f t l L ~ ' - . U1d fa fOplit in to 1'(.'\ '(!f1I,! small sbeef .q , Owing10 the O T t b ~ t di p, th ese thin ..heets arc well e ~ p o ; . . ; e lonly in lhe p l!lC of d t ' c p e ~ L C('()3ion, in thiHCtlfC 1 I ~ Lbe10000'eflt. part ot Mercur D : ' ~ M , at 'h e head of Le"""8tonCanyon. Here, Olt.-ing to their "rnoll thickne-s , tJlcy are

m p ~ c d t.hey am 'olso intimately. conn ectedwith the. ore d epo:.n lion . The re are here tnn'o "mallHhc


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OQUIf:HH n A N G 1 ~ . 391- 'ckn(BS iOf!OIllC t : \ n l n d .hEm termina lt'!-l so :\ lo rnpt}y1.:11 IN " (0 !Ughe:t t a lau t. 1 0 o t " l . ~ cndcn-ce of a faull , howe r , can be iouod, ::.nd it is ccrtdrlo that lJlJ l1lun:-mcnt

of f,rre-.lt. i D ) p o r t l O C C !l.llS oecurred; n ~ o r o o \ ' ( o r r,o oukropof p:J(phyry p r ~ m t l {he Of he r ! l ldu nf a fsures are of much importance in COIUlectionwith the oro deposits but hUVl1 exerted littieinliuence in tho general struetw'e of tbe district.

onE DEPOSITS.MERCUR.

The Oro de.pos it s of tho ~ I e r c u l ' area comprise silver depos.its on d gold deposits, hothI?cnlly cilled "Iedgcs." Sma.ll amounts 01'ilvcr orcs hnva been mined from Lhe "old'1d 0. e ges," an d smoll amounts of "old from Lhesilrer "ledges," but in "cner.:i the 5ilYer"ledge" curries little gold :nd the gold ledgeores are remnrkllbly free from silyor. The~ " e r orcs are of littie commercial importance,ut the gold orcs have yielded largely.

' t : R DEPOSITS.

1 ~ h ( \ sil."\"('I" IClIge" oeew'S (I t 11 I'Ilt1lc.lntcd With porphrr}' hodics, hu t bet \ ~ ' C C l 1 these two points it s eioBo 1 l ~ ~ o e i l 1 t i n n wlt.ll porphyry is not. so apparent. 'fhe ledgodocs, h o ~ v c v o r , appear to occupy i,hout thosame horizon throughout its cxtent.T h ~ typieal "ilYer lodge is I> cherty material

rcsultmg from the silicification of limestone.[ t is resistant to crosion nnd USultUy outcro!>"mtlte!' prominently. In ndJit.ion to chortyquart? It commonly include. considernble calcite "n d hurite, t'lB hurite heing. cspcciillyu b U l ~ d in the ores. Sericite is present inco.nslIlerublc Itmount in mnny pltrt. of LionHilI und in Ie" nmonnt in the Morenr eump.Locully, the lerlg() is an ore cont.nhdng, intho Mercm district, stihnito find possibly otheru ~ t i m o l l Y minerllls; eoppcI' cf.l.l'bonntcsj scorodttL\ find p o ~ i h l y other 1l1'"Sonic InillCl'llls;


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392 ORE m :P OS .TS OF UTAH.The potas.,ium nnd aluminum firc present illvery nellrly the proportions for muscovite unJurc probablv present as sericite, though somoof tho p o t o . ~ s may be present as jarositeund some of both tho potussium and .,'uminum

us alunite.The gnngue minnrnls of the Mercur Blls in lindthose of Liun Hill Ilrc very similar, hu t themetallic c.onst.ituents dill'cr considerably, thoseof Lion Hill coat.aining considerable load , more Icopper, nnd some zinc. ~ c i t h c r lend or zincare reported from the :VIereur deposits. TbeflaM rol"tions nne! tho ebaructer of the gnogueminor".!. leave little doubt thnt tho silver oresof the two areos arc of common origin thoughthey diffor somowhnt in metnl content.The average gmde of the silver ores is notknO\vo. Some rich pockets were mined, butopcrntions wore never very extensivo nnd soonceased indie:l.ting thnt the "verage grade wasnot h i ~ h ,

OnI.n DP.l'OSlTS.Tho nccompanyiug gellerulized section (fig.

41) through tho ore-beo ring formation of the~ l C l ' di,trict WI19 furnished by tho Consoli- Idated ~ l e r c u r Co. I t does not represent thethickuess of the different formations at auygiven point hut is un approximate nverago oftbeir thickness as they have been enco unteredin the mine workings.Gerural .,"ctio".-The mLmeti givon for tbestmtn. in the general section (fig. 41) of the orebe.,u'ing formation of the 1[erour urea I\l'e thosein common 11:;e and do no t necessarily repre

sent the ch(lCIlCtel' of the material ; in fn ct,soma of tho beds co.Uod "porphyry" containfossils fiud (HO generally recogni7.cd to besedimentary.At th(l huse of the 0 1'0 scries is a lnMsive bluelimestone with beds of shuly m.teri . . These

61'0 unminemlizerl und pmeticully unaltered.Overlying this is the silver ledge., whieh is acha.rty, mther porous milS', resulting from thesilicification of limestone. It cunies silver,and ill places is 1\ eommerciol arc. Localll',notably in the anticlinal body in the Brickyn;'d""d ill tho Geysor mines, gold oro hus beenmined from the silver vein.

Ovorlying tho silve. ledge is tho )Jngn.zinevein. Tho lowol' pnrt, known us the Hard:Mng ft zine, is 11 cherty 1lll1tel'i:ll, l'esultiuO' fromtbo silicifiettlioll of l i l l l e ~ t ( ) n C >lnd inmanyIpllU:e8 closely resembles the sil vcr vein; co"'-

monly, howe"er J it is more massive and donot"possess t,hc 811mB poru us r.hal'Rc',t{',r. Tupper purl, known tho Soft Magazine ve

IIUpper vtin"porphyr/'

Uppt:r \'einUpper vein (oolw:Jl

;diddle streak

lkreur vlJ i:JMrttur \ ' ~ ; n (cot .... :lllLo\\'tr hr.Jt

LEGEND

.-S i f u ( \ O ~ l.blfttu:

Ve rt ical KJlte~ ~ = - B : ~ ~ o = = = = . . . . . .~ FIQlJIlE H . - G c u ~ r u . h z e d :section of oro bed.!! h.l Metcur dlstrid.


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OQUTnUH RANGE.i, haly materi'll, light colored and 1 > I l ~ d c c i 'here o:ddi7.cc\ imd black whero unoxldlZcd.~ b e hard mnguzino is about 20 feo t thick andt.ho soft about 7 fee t. lloth c:Hry gold undhave becn mi ne.d. . .Overlviug th e MogazlUe velll nnd about 30feel.of "horty matcrial (".!tered limestone) that

wries little gold is th e shaly Apex vein whichi, IIbout 8 fect thick a.nd cOlTies gold. I t isoverlain by ab out


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ORE: DEPOSIT'; OF FrMr.Tlw followlIlg; is a nalysis of oxilliy.t'd i '11tH l l l l l h l e gold giv(:ll i:; Hn aYel'a.gc o"olrl Ol'f' from the ,tope. oi the Al'e, t.ulllwi in Inumber of tests mude on raw' ore "ftcr li

o : o,i,I:\[.ion bv I ~ i t ~ t i o n of 5 pOllnris oft,he ~ l c J ' e u r m i J l t ~ . 1 .Jgl'Ollnel [.0 s . ~ 200-mesh, hy ,til' in " 2-pou[W. f' , 1I1I 1('b r.l))d, . l ~ y t < i

Silicon dioxide ( S i ( ) ~ i ___ .. . .. _ .. _ . _ . -' f i ~ l J . n i u m dioxide (Ti01) . . . . . .Aluminum 8 c ~ q u i o x i u e (,\1-/)3)- . . . . . . . . .I ron s e ~ u i o x i d Q (FC:lO,I) - . - .. _ . . . . .I ron protoxide (1'cO). _. _ . . . . . . . . . . . . . . - . . . . . . . . .Cu.1ciulTI oxide (Ca.O) .. _. __ . . . . . . . . . . . . . . . . _ . ' _.Unrillm oxide (Oa'O) . . . . _. _'" - . . . . . . . . . . . . . .: ~ f a g n j l l m oxide ( ~ f b { ) " " . . . . . . . . . . ..

i u r n oxide ~ O ) . . . . . . . . . . . . . . . . .Sodium oxido (K a.:O ) . . . . . .. . . .. . . . . . .. .. .

cyanide solution with 25 pounds of lime. 11'{Orun'. tlilJel'ent orcS we re boiled fo r fL w c ( ~ k , the earb89: scum being skimmed rcpcI\tcdly. The o

2.02 dizcd Ore glwo almost no oll.rhon, hut the1. t}5 ritie base gn.vo t\ In.rgo n.mount. An fl.llalysi.';2 the seum gave 1 0 . ~ per cent frec earbon.% .59.10 gold; af ter agit t\tion in potassium au.72.23 cyanide (K.'\uCy, ) solution ll.nd w","hing.47 nss"yed 890.60 pCI' ton.There is co nsid efl,ble coneentmtion of g

Lithium oxido(LiO) . . . . . . . ...... . . .. . . . . . . .Wa.ter below 1100 Coo . . . . . . . . . . . . . .. . . .. . Slrong \.mec. in the cllJ'bon coutent of th l' ore, "" showlI.56L 16 he"d Ilsst\y dter boiling : R"w !,yrite bi

..14 3;1.31; dter boiling, S2 .27.a.lc r;\bo\,o 1100 C . . . . . . . . . . . . . . . . . . . . . . . .Sulphur Irioxiuc (SO,) . . . . . . . . . . . . . " . . . "PhosphoruS" Jxmtoxido (P;O I). . An:enic pentoxjde ( A ~ l O . J . . . . . . . . . . . . . . . . . .Molybdenum (:\10)... . . . . . . . . . .. . . . . . . . . . . ,.Tollurium ere).. . . . . . . . . . . . . . . . . .. . .. . . . . . . . .

OS It is of course well known thl\t cill'bonI. GO precipitate gold from solution, though no g(?) er,tl n.greement hus bee n rll/whed us to (?) causo of such preeipitl.tion; and it hIlS also b

100.00 shown i th"t in gold-silver cyn.nide solul.iOccur,.""",, oftlw gold.-Gold nC\'0r "isible carbon precipitll.tes gold more rcudily t

in either tIm oxidized or Wloxidizod orcs of the silver, Rnd that little silver precipitt\\


38/39

:395Tho ;1'Cl'uge g'l'lldo of th e 01'1' ll"l i1l 0.d iH of ) ore::;; lind second, thnt SOf.l0 conslituent of thocnuf'?j:C dcpelld0nt on the eru-t. of ext!'aetwll nnd : ~ h l l l c acted us It reducillg agent unO. prer.ipit rded

(I'Cn (.U1('.n t, for : l ~ low-gr ade ruck t l lken os I he gold [l'om the Sol11tions. I t is well knownr.,n be pl'ofit.ably hnndled. thnt inte.rfercncc h .Y shnlc byers tends to CulISO

QU ICKglLn:n DEJ'OSITS . preeipitatioll) hut in the Camp Flore} district.thesolutions must. hnve pnsscrl t.hrough severu]"hnl)' heds , for several 01'(\ Zones lie on(\ nbovoIlOot.her. The ability of ctlrhon or snnw sub-stonce nsgociuted with it. to precipitllte gold fromsolut.ion is ulso known: lind th e ilppnre.nt. nsso{'itltiOI1 of gold with the ctl.rbonncoous mnttel' suggests thltt tbis hus been un tlctivo fnctor in thofOl'mat.ion of the deposits. Moreovor, ns goltl isortlinfl!'ily mo!'c I'cndily precipitnted tlHln 8ih'cr,n solution thtlt contnined both gold unci sil"lll'might hnve hud mudl of its gold Itnd litt Ie ofits silver precipit.lited by t.he clll'hon of therocks.

The Sacramento is tbe only Il)ille in the distriel from which quicksilyer htls been producedin commercitl.l q u n n t j t i ~ , and it \,ns inHl'Ccssible when the wl'iter visited t.he distliet.Boutwell' hIlS descl'ibe


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396 ORE DEPOSITS OF UTAH.EAST TINTIC MOtNTAINS.

Dy W,UDE>UR l.nmO)H:x :J,nd G. F. L O U G H L IGENERAL FEATURES.

The Rust Tintie lIIountains ill cent!"al l ; tnhform one. of the cllStcrrun08t ranges of theGreat Bnsin. Th ey nrc crossed hy Int.itudc40 )/. and 100l"itude IIZo W. They includeo .two organized mining clistricts, the Tintie int.he ccntrol ancl the North Tint.io (including thcBoulter district) in t.he northern part of theraoge. The boundnr)' bot.weco thcsc t.wo distri cts is approximately m,u'kcd by the Denn'r& Rio Grande Rnilroad, which extends "nslrward from En!"eka, the larges t settleUlent inthe range. The nrc.l extending .1 few milessouth of the milroad and east of longit.ude 11205' W. is locallv known 3S the. Eust Tintic distri c.t bu t is he;o included in t.he Tintie district.

The Tint.ie district prope,' hus long bcen oneof t.hc most productive io U!

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