UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY
IN-SITU MEASUREMENTS OF SEISMIC VELOCITY AT 19 LOCATIONS IN THE LOS ANGELES, CALIFORNIA REGION
by
Thomas E. Fumal, James F. Gibbs, and Edward F. Roth
Open-File Report 81-399
This report is preliminary and has not been edited or reviewed for conformity with Geological Survey standards and nomenclature
Any use of trade names and trademarks in this publication is for descriptive purposes only and does not constitute endorsement by the
U. S. Geological Survey
CONTENTS
INTRODUCTION ........................ 1
SELECTION AND LOCATION OF SITES. .............. 2
DRILLING AND SAMPLING PROCEDURES .............. 2
RECORDING PROCEDURES .................... 3
REDUCTION OF GEOLOGIC DATA ................. 4
Description of Samples. ................ 4
Geologic Log. ..................... 5
Density Measurements. ................. 6
REDUCTION OF SEISMIC DATA. ................. 6
Identification of Shear Wave Onset. .......... 6
Travel Times and Average Velocities .......... 7
Interval Velocities and Elastic Moduli. ........ 8
SUMMARY OF RESULTS ..................... 11
ACKNOWLEDGEMENTS ...................... 11
REFERENCES ......................... 12
FIGURES. .......................... 13
TABLES ........................... 84
INTRODUCTION
Studies conducted in the San Francisco Bay Region (Gibbs, Fumal and
Borcherdt, 1980) have shown that average shear-wave velocity can be related to
quantitative estimates of ground motion such as amplification from nuclear
explosions and earthquake intensity. Furthermore, when certain physical
properties of the geologic materials such as texture, hardness and fracture
spacing are described during geologic mapping, a method can be used to predict
shear-wave velocity from descriptions of geologic units, (Fumal, 1978). By
measuring shear-wave velocities in representative geologic units, regional
maps depicting the earthquake hazard can be compiled.
These studies are presently being extended to the Los Angeles Basin and
Oxnard-Ventura, California, areas. To date, shear and compressional waves
have been measured in boreholes at 46 locations. A previous report (Gibbs,
Fumal and Roth, 1980) summarized seismic and geologic data at sites 1-27.
This report presents the data for sites 28-46. At each location seismic
travel times are measured in drill holes, normally at 2.5 m intervals to a
depth of 30 m. Geologic logs are compiled from drill cuttings, undisturbed
samples and penetrometer samples. The data provide a detailed comparison of
geologic and seismic characteristics and parameters for estimating strong
earthquake ground motions quantitatively at each of the sites.
SELECTION AND LOCATION OF SITES
The selection of sites 28-46 (fig. 1) in this study was guided by the
availability of other data in the Los Angeles area that are applicable to the
overall problem of estimating earthquake ground motions. These data are (1)
strong motion records from the 1971 San Fernando earthquake, (2) ground motion
recorded from nuclear explosions and (3) geologic mapping (in progress).
Sites are selected on the basis of each data set with priority given to the
order listed.
DRILLING AND SAMPLING PROCEDURES
At each site selected, a hole 12.4 cm in diameter is drilled to a depth of
30 m using a truck-mounted drill and a rock bit with mud and water
circulation. The boring is then cased with 7.6 cm diameter PVC plastic pipe
and backfilled with drill cuttings and "pea" gravel. Casing insured
accessibility of the hole and provided a secure clamping surface for the
seismic probe.
Samples are taken in each of the holes at depths of approximately 3 m,
7.5 m, 30 m, and at boundaries defined by continuously monitoring the drill
cuttings and the drill reaction. The type and number of samples taken at each
site is determined by the type of material, the number of significant
lithologic boundaries, and variations in weathering.
In soils, standard penetration measurements are made and undisturbed
samples are taken using a "Pitcher" core barrel and a "Shelby" thin tube
liner. Pitcher barrel samples are also taken in soils with large amounts of
hard rock fragments and in firm rock. Samples are obtained in hard rock using
a core barrel with a diamond core bit.
RECORDING PROCEDURES
Congressional waves are generated at each site by the vertical impact of a
sledge hammer on a steel plate. A signal produced by the opening of a switch
attached to the hammer is recorded for determining origin time.
Shear waves are generated using the horizontal traction source introduced
by Kobayashi (1959) and discussed by Warrick (1974). Briefly, the method
consists of applying a horizontal impact to a large timber (244 x 30 x 18
cm). The timber is placed on a flattened soil surface and held firmly in
place by the front wheels of a truck. A steel pipe extends through the timber
and supports a 30 kg hammer to which is attached an impact switch. The
specially constructed hammer rolls on bearings and moves a distance of 45 cm
along the pipe before impacting the timber. The "horizontal traction" source
generates a high proportion of S- and P-wave energy. The timber is struck
twice, once in each direction. The two impacts reverse the polarity of the
S-waves but not the polarity of the smaller amounts of P-wave engery.
Comparison of the two signals provides an important tool for identifying the
onset of the S-wave.
The timber is offset 2.0 m from the hole and a three-component geophone
package (natural frequency 14 Hz) is placed within 9 cm of its center. The
signals recorded from the surface geophones are used to monitor the input
signals and determine the origin time for the generated S-waves. The
arrangement of timber, steel plate, and surface geophone package is
illustrated in figure 2.
The P-waves generated by a vertical impact on the steel plate and the
S-waves generated by striking the timber in both directions are recorded
separately. This procedure is repeated for each 2.5 m interval (closer
spacing is sometimes used to obtain a velocity in thin layers) in the drill
hole.
Two downhole geophones were used in this study. One has an inflatable
diaphragm and a declinometer which under most circumstances permits
orientation of the horizontal geophones from the surface. Proper orientation
(parallel and perpendicular to the source) aids in identifying the onset of
the S-wave. A second downhole geophone was used as a backup instrument in
several holes in this study. This geophone has a spring clamping mechanism
and cannot be oriented from the surface. Both instruments detect three
components of motion.
The signals from the downhole and surface seismometers and the impact
switches are recorded on photographic paper. The velocity unit-impulse
response of the recording system is essentially flat from 2 Hz to above 100
Hz. A detailed description of the recording instrumentation is presented by
Warrick and others (1961). The recording oscillograph is modified for this
project by adding 500 Hz galvanometers and increasing the paper speed to
46 cm/sec.
REDUCTION OF GEOLOGIC DATA
Description of Samples
Portions of each of the samples are examined and described in the
laboratory. The terms used for the descriptions are summarized on figure 3.
The sample descriptions are presented in the left-hand columns of figures
The soil samples are described using the field techniques of the Soil
Conservation Service and those specified for the Unified Soil Classification
System. Dascriptions include soil texture, color, amount and size of coarse
grains, plasticity, dry and wet consistency, and moisture condition. Texture
refers to the relative proportions of clay, silt, and sand particles less than
2 mm in diameter. The dominant color of the soil and prominent mottles are
determined from the Munsell soil color charts.
Descriptions of rock samples include rock name, weathering condition,
color, grain size, hardness, and fracture spacing. Classifications of rock
hardness and fracture spacing are those used by Ellen and others (1972) in
describing hillside materials in San Mateo County, CA. The weathering
classification is modified from that used by Aetron-Blume-Atkinson (1965) in
describing Tertiary sedimentary rocks in the foothills of the Santa Cruz
Mountains, CA.
Geologic Log
Geologic logs are compiled for each hole using the field log descriptions
of the samples (figures 19-37). The field log is based on the reaction of the
drill rig, a continuous record of drill cuttings, preliminary on-site
inspection of samples, and inspection of nearby roadcuts and gullies.
Most information needed for describing relatively well-sorted soils and
such properties of rock as lithology, color, and hardness are readily obtained
from cuttings. Inspection of samples and nearby outcrops is also necessary to
determine the nature of poorly sorted materials and to determine fracture
spacing. Reaction of the drill rig is also useful in determining degree of
fracturing as the rate of penetration in rock is highest for very closely
fractured and crushed materials and drilling roughness generally is at a
maximum in closely to moderately fractured rock. In-situ consistency of soil
is determined largely from standard penetration measurements and rate of drill
penetration.
5
Density Measurements
Values for density are required to calculate elastic moduli from
measurements of seismic velocity. Densities were measured for the diamond
core samples and most of the penetration samples by weighing a small piece of
sample and obtaining its volume by the mercury displacement method. A
different procedure was used for very friable materials such as grus or
poorly-sorted materials which necessitated using a large sample. A section
was cut from the Shelby tube containing the sample, its height and diameter
measured and the sample extruded for weighing.
While the accuracy of the density measurements is generally sufficient for
calculation of elastic moduli, a number of the samples used to obtain
densities were not entirely representative of the material in-situ.
Penetration samples were somewhat disturbed and many had dried out before
measurements could be made. Densities of hard rock obtained using intact
fragments may be higher than in-situ densities by approximately
0.1 - 0.2 gm/cc, depending on the amount and openness of fractures.
REDUCTION OF SEISMIC DATA
Identification of Shear VJave Onset
To aid in the identification of the shear wave arrivals, the signals
recorded in the drill hole from impacting the timber in opposite directions
are superimposed and drafted on a common time base (figs. 38-56). The S-wave
group is easily identified when displayed in this manner, by a 180* phase
inversion. The onset of the S-wave is chosen as the start of the first
clearly inverted phase in the group. The interpretation proceeds from the
bottom record, to the top using phase correlation at each recording depth.
The onset of the S-wave arrival (arrows) and the first peak of the S-wave
arrival (dots) are identified for each depth and are indicated on figures
38-56 for each site.
6
It was not possible at every site to control orientation of the downhole
seismometer package because of high viscosity drilling mud left in the hole;
hence, the relative amounts of S-wave energy recorded on the two horizontal
seismometers vary with depth. The S-wave arrival is generally most easily
identified on the horizontal seismogram with the largest amplitudes.
Comparison of the signals recorded on the horizontal sensors with that
recorded on the vertical sensor shows that the S-wave energy generated by the
horizontal traction source is at least twice as large as the P-wave energy.
On many of the horizontal seismograms some P-wave energy prior to the
onset of the S-wave is apparent. Some P-wave energy is generated by the
horizontal traction source and some probably results from conversion of S to P
at seismic boundaries. In some cases the polarity of this P-wave energy is
reversed and careful consideration of the entire record section is reauired to
identify the S-arrival. In general, the onset of the S-wave is easier to
identify at sites underlain by the various types of soil than for sites
underlain by the more consolidated rock units.
Travel Times and Average Velocities
To determine the travel time for the S-wave onset identified from the
record sections (figures 38-56), the following times are measured with respect
to a 100 Hz time code signal recorded on the records:
1) t^ time of break in signal from impact switch
2) ^2 onset time of S-wave arrival on inline uphole geophone
3) t^ onset time of identified S-wave arrival on downhole sensors
The time considered to be the origin time for the S-wave recorded on the
downhole sensor is the onset time of the S-arrival on the uphole inline
sensor. To reduce the uncertainties in determining this origin time, an
average travel time from the source to the uphole geophone (t.) is
determined from the set of values, t2 - tj, measured at each depth.
The travel time for the first S-arrival is given by
ts tt3 - tt ) - tA .A corrected S-wave travel time (ts ), corresponding to the travel time
for a vertical ray path, is computed from t « t + tr where trc
corresponds to a timing correction (cosign of the angle of ray incidence) due
to the distance the plank is offset from the center of the hole (usually 2.0
m). Average velocities from the surface are determined by dividing the
corrected travel time by the corresponding depth. The travel time for the
first S-peak is determined similarly. The origin corrections (t« - ti),
the travel times of the first S-arrival and the first S-peak (t ), the
corrected travel times for the first S-arrival and the first S-peak (t ) 95c and the average corresponding velocities computed at each site are presented
in tables 1-19.
The travel times for the P-waves generated by a vertical impact on a steel
plate are determined in the same way as for the S-waves, except that the
origin time for the P-wave is given by the impact switch and no origin
correction is necessary. The travel times, the corrected travel times, and
the average velocities for the P-waves are also presented in tables 1-19.
Interval Velocities and Elastic Moduli
Calculation of interval velocities and elastic moduli requires
determination of depth intervals over which the velocity is approximately
constant within the uncertainty of the travel-time measurements. To determine
these depth intervals, the travel time data (tables 1-19) are plotted as a
function of depth (figs. 57-75) and the geologic logs (figs. 19-37) are
simplified and displayed graphically on the travel time curves (figs. 57-75).
Depth intervals for velocity determinations are selected on the basis of
distinct changes in slope of the travel time plots and evidence for lithologic
boundaries. For those geologic materials with S-velocities greater than
350 m/sec, the intervals are required to contain at least four travel time
8
measurements to avoid determining a velocity from a travel time differential
due in large part to measurement error.
Velocities are calculated for each of the selected intervals (tables
20-38) from the slope of the linear regression line which best fits the travel
time data in a least squares sense (Borcherdt and Healy, 1968, eqs. 3.1-3.5).
The equation of the linear-regression line which best fits, in a least-squares
sense, a sample of n pairs of time-depth coordinates (x^,ti ),....(xn ,tn ) is
t(x) = a + b (x - x)
where
1 n the intercept is INCPT = - 2 t. - bx , and
n the slope is b s 2 w.t.
n ?with w. = (x. - x)/D and D s 2 (x. -x)
11 k=l K
The desired velocity (VEL) is given by V - 1/b. Assuming the standard
statistical model (Borcherdt and Healy, 1968), the 68.3 confidence level,
uncertainty interval (UNC INT) for the velocity is estimated by
where S s 1
is the standard error of the regression coefficient
For these depth intervals with measurements f density (p), the shear
modulus (SHEAR MOD, M) and bulk modulus (BULK MOD, K) is calculated (tables
20-38) using
M = PVS 2
and K = PV 2 - 3
Poisson's ratio (a) is calculated (tables 20-38) using
2
ft)-2
2 -2
10
SUMMARY
This report summarizes seismic velocities measured in the near surface
geologic materials at 19 locations in the Los Angeles and Oxnard Ventura,
California, areas. S-wave and P-wave measurements were made at 2 1/2 m
intervals in drill holes to a depth of 30 m. Geologic logs were compiled by
continuously monitoring drill cuttings and by analysis of cored samples.
Density measurements were made from samples for the calculation of elastic
moduli.
Previous studies in the San Francisco Bay region (Gibbs et al., 1980) have
shown that average shear velocity can be correlated with ground motion
amplification recorded from nuclear explosions and with observed intensities
from the 1906 earthauake. A detailed study using shear velocity data from 59
locations (Fumal, 1978) has shown that certain physical properties of the near
surface geologic materials can be used to predict velocity. Measurements of
shear velocity at a number of strategic locations will permit a regional
classification of seismically distinct velocity units which may be useful for
seismic zonation.
ACKNOWLEDGEMENTS
The authors wish to thank John Tinsley and Al Rogers for their help with
site selection. John Tinsley also provided geologic data for many of the
locations. Chuck Halfen assisted with computer analysis of the seismic data
and drafting.
11
REFERENCES Aetron-Blume-Atkinson, 1965, Geologic site investigations for Stanford Linear
Accelerator Center: Report No. ABA-88. Borcherdt, R. D., and Healy, J. H., 1968, A method of estimating the
uncertainty of seismic velocities measured by refraction techniques:Bull. Seism. Soc., Am., 58, p. 1769-1790.
Ellen, S. D., Wentworth, C. M., Brabb, E. E., and Pampeyan, E. H., 1972,Description of geologic units, San Mateo County, California: AccompanyingU.S. Geol. Survey Miscellaneous Field Studies Map, MF-328
Fumal, T. E. 1978, Correlations between seismic wave velocities and physicalproperties of near-surface geologic materials in the southern SanFrancisco Bay region: U.S. Geological Survey Open-File Report 78-1067.
Gibbs, J. F., Fumal, T. E., and Borcherdt, R. D., 1981, In-situ measurementsof seismic velocities for seismic zonation in the San Francisco BayRegion: Bull. Seism. Soc. of Am., in press.
Gibbs, J. F., Fumal, T. E. and Roth, E. F., 1980, In-situ measurements ofseismic velocities at 27 locations in the los Angeles, California region:U.S. Geological Survey Open-File Report 80-378.
Kobayaski, N., 1959, A method of determining the underground structure bymeans of SH waves: Zisin, ser. 2, v. 12, p. 19-24.
Soil Survey Staff, 1951, Soil Survey Manual: U.S. Department of AgricultureHandbook 18.
Sowers, G. B., and Sowers, G. F., 1970, Introductory Soil Mechanics andFoundations: MacMillan, New York.
Terzaghi, K., and Peck, R. B., 1967, Soil Mechanics in Engineering Practice:John Wiley and Sons, New York.
U.S. Army Corps of Engineers, 1960, the unified soil classification system:Tech. Menorandum No. 3-357, Waterway Experiment Station, Vicksburg,Mississippi.
Warrick, R. E., 1974, Seismic investigation of a San Francisco Bay mud site:Bull. Seism. Soc. Am., v. 64, p. 375-385.
Warrick, R. E., Hoover, D. B., Jackson, W. H., Pakiser, L. C., and Roller,J. C., 1961, The specifications and testing of a seismic-refraction systemfor crustal studies: Geophysics, v. 26, p. 820-824.
12
FIGURES
Regional location map
Shear-wave apparatus
Description of geologic logs
SITE NO. NAME
28 CAMARILLO STATE HOSPITAL II
29 MARINA DEL RAY
30 WESTMINSTER HIGH SCHOOL
31 BURBANK FIRE STATION
Detailed location map Fig. 4 20Geologic log Fig. 19 35Record section - Fig. 38 55Travel-time plot Fig. 57 65 Tables:
"Travel-times and average velocities" 1 84"Interval velocities and elastic moduli" 20 103
Detailed location map Fig. 5 21Geologic log Fig. 20 36-37Record section Fig. 39 56Travel-time plot Fig. 58 66 Tables:
"Travel-times and average velocities" 2 85"Interval velocities and elastic moduli" 21 104
Detailed location map Fig. 6 22Geologic log Fig. 21 38Record section Fig. 40 55Travel-time plot Fig. 59 67 Tables:
"Travel-times and average velocities" 3 86"Interval velocities and elastic moduli" 22 105
Detailed location map Fig. 7 23Geologic log Fig. 22 39Record section Fig. 41 57Travel-time plot Fig. 60 68 Tables:
"Travel-times and average velocities" 4 87"Interval velocities and elastic moduli" 23 106
13
SITE NO. NAME PAGE
32 SHELL MAKER ISLAND
Detailed location map Fig. 8 24Geologic log Fig. 23 40Record section Fig. 42 57Travel-time plot Fig. 61 69 Tables:
"Travel-times and average velocities" 5 88"Interval velocities and elastic moduli" 24 107
33 CYPRESS COLLEGE
Detailed location map Fig. 9 25Geologic log Fig. 24 41Record section Fig. 43 58Travel-time plot Fig. 62 70 Tables:
"Travel-times and average velocities" 6 89"Interval velocities and elastic moduli" 25 108
34 VENTURA PISTOL RANGE
Detailed location map Fig. 10 26Geologic log Fig. 25 42Record section Fig. 44 58Travel-time plot Fig. 63 71 Tables:
"Travel-times and average velocities" 7 90"Interval velocities and elastic moduli" 26 109
35 SIERRA LINDA SCHOOL
Detailed location map Fig. 11 27Geologic log Fig. 26 43Record section Fig. 45 59Travel-time plot Fig. 64 72 Tables:
"Travel-times and average velocities" 8 91"Interval velocities and elastic moduli" 27 110
36 SAN MIGUEL SCHOOL
Detailed location map Fig. 11 27Geologic log Fig. 27 44Record section Fig. 46 59Travel-time plot Fig. 65 73 Tables:
"Travel-times and average velocities" 9 92"Interval velocities and elastic moduli" 28 111
14
SITE NO. NAME PAGE
37 ALTA VISTA PARK
Detailed location map Fig. 12 28Geologic log Fig. 28 45Record section Fig. 47 60Travel-time plot Fig. 66 74 Tables:
"Travel-times and average velocities" 10 93"Interval velocities and elastic moduli" 29 112
38 SEAL BEACH WEAPONS STATION
Detailed location map Fig. 13 29Geologic log Fig. 29 46Record section Fig. 48 60Travel-time plot Fig. 67 75 Tables:
"Travel-times and average velocities" 11 94"Interval velocities and elastic moduli" 30 113
39 RIDGELINE WATER TANK
Detailed location map Fig. 14 30Geologic log Fig. 30 47Record section Fig. 49 61Travel-time plot Fig. 68 76 Tables:
"Travel-times and average velocities" 12 95"Interval velocities and elastic moduli" 31 114
40 DIAMOND BAR '
Detailed location map Fig. 14 30Geologic log Fig. 31 48Record section Fig. 50 61Travel-time plot Fig. 69 77 Tables:
"Travel-times and average velocities" 13 96"Interval velocities and elastic moduli" 32 115
41 SKY TERRACE
Detailed location map Fig. 15 31Geologic log Fig. 32 49Record section Fig. 51 62Travel-time plot Fig. 70 78 Tables:
"Travel-times and average velocities" 14 97"Interval velocities and elastic moduli" 33 116
15
SITE NO. NAME
42 SYLMAR NURSERY
43 SYLMAR PARK
44 HILLTOP HOUSE
45 CEDAR HILL NURSERY
46 CAL STATE NORTHRIDGE
Detailed location map fig- 16 32Geologic log Fig- 33 50Record section Fig. 52 62Travel-time plot Fig. 71 79 Tables:
"Travel-times and average velocities" 15 98"Interval velocities and elastic moduli" 34 117
Detailed location map Fig. 16 32Geologic log Fig. 34 51Record section Fig. 53 63Travel-time plot Fig. 72 80 Tables:
"Travel-times and average velocities" 16 99"Interval velocities and elastic moduli" 35 118
Detailed location map Fig. 16 32Geologic log Fig. 35 52Record section Fig. 54 63Travel-time plot Fig. 73 81 Tables:
"Travel-times and average velocities" 17 100"Interval velocities and elastic moduli" 36 119
Detailed location map Fig. 17 33Geologic log Fig. 36 53Record section Fig. 55 64Travel-time plot Fig. 74 82 Tables:
"Travel-times and average velocities" 18 101"Interval velocities and elastic moduli" 37 120
Detailed location map Fig. 18 34Geologic log Fig. 37 54Record section Fig. 56 64Travel-time plot Fig. 75 83 Tables:
"Travel-times and average velocities" 19 102"Interval velocities and elastic moduli" 38 121
16
Figure 1
. Ge
nera
lized
map
of t
he L
os A
ngel
es r
egion
showing
the
appr
oxim
ate
loca
tion
s of
shear-wave
sites.
Detailed l
ocat
ions
are
sho
wn i
n fi
gure
s «-/8
.
a) SOURCE
UPHOLE THREE COMPONENT
GEOPHONE
STEEL PLATE FOR VERTICAL HAMMER
b)
2.5M
1
DOWNHOLE THREE COMPONENT GEOPHONE
Figure 2. Details of field apparatus. (a) banner and plank and (b) section shoving three-component dovnhole geophone.
18
DESCRIPTION
Text
ure:
the
rela
tive
pro
port
ions
of
clay,
silt,
and
sand below
2 am.
Prop
orti
ons
of l
arge
r pa
rtic
les
are
Indicated
by Modifiers o
f textural class
name
s.
Deter
mina
tion
Is
Mde In
the f
ield
mainly
by f
eeli
ng t
he moi
st
soil
(S
oil
Survey S
taff.
1951
).
MNCIMt
Color:
Stan
dard
! Mu
nsel
l co
lor
name
s are given
for th
e dominant color o
f the moist
soil
and
for
prom
inen
t mottles.
Plas
tici
ty:
esti
mate
d from t
he s
tren
gth of a
ir d
ried
samp
le a
nd t
ough
ness
of
thre
ad fo
rmed
whe
n soil Is
rol
led
at th
e pl
asti
c li
mit
(Sow
ers
and
Sowe
rs.
1970).
plas
tici
ty
non
plas
tic
Slightly
medium
high
ly
dry
stre
ngth
».
lo
w slight
medium
high
fiel
d te
st
falls
apart
easi
ly
easily crushed
friable with dif
ficu
lty
cannot c
rush w
ith
fing
ers
DESCRIPTION
Rel
ativ
e d
ensi
ty o
f sa
nd a
nd c
onsi
sten
cy o
f cl
ay I
s co
r
rela
ted
w
ith
pen
etra
tio
n r
esis
tan
ce:
(Ter
zag
hl
and
Pec
k,
1948
)
blo
ws
/ft.
0-4
4-10
10-3
030
-50
>50
rela
tive
den
sity
v.
loos
elo
ose
med
ium
dens
ev.
den
se
blo
ws/
ft.
_p
_^
2-4
4-8
8-15
15-3
0>3
0
cons
iste
ncy
v.
soft
soft
med
ium
sti
ffv.
sti
ffha
rd
a.
W.
etc
.:
Uni
fied
Soi
l C
lass
ific
atio
n G
roup
Sym
bol
(U.
S. A
rmy
Corp
s of
Eng
inee
rs,
1960
)
Rock
har
dnes
s:
resp
onse
to
hand
and
geo
logi
c ha
mm
er;
(Elle
n e
t al.,
1972
)
hard
h
amm
er b
ounc
es o
ff w
ith s
olid
sou
ndfir
m -
ham
mer
den
ts w
ith t
hud,
pic
k po
int
dent
s or
pene
trat
es s
ligh
tly
soft
- p
ick
poin
t pe
netr
ates
fria
ble
mat
eria
l ca
n be
cru
mbl
ed I
nto
Indi
vidu
al g
rain
s by
han
d.
Frac
ture
spa
cing
: (Ellen t
t al.. 1
972)
cm
In
1-5
5-30
30
-100
>1
00
1/2-
2 2-
12
12-3
6 >3
6
frac
ture
spa
cing
v. c
lose
clos
em
oder
ate
wid
ev.
wid
e
Weat
heri
ng:
(Actro
n-Bl
umt-
Atkl
nson
. 19
6S)
Fresh:
no v
isible s
igns
of
weat
heri
ngSlight:
no v
isib
le d
ecom
posi
tion
of minerals,
slig
htdiscoloration
Moderate:
slight d
ecom
posi
tion
of minerals a
nd d
is
inte
grat
ion
of r
ock, deep
and
thor
ough
di
scol
orat
ion
Deco
mpos
ed:
exte
nsiv
e decomposition
of minerals
and
complete d
isin
tegr
atio
n of
rock
but
orig
inal
stru
cture
Is p
rese
rved
.
Figure 3
. De
fini
tion
s of t
erms
used
for
descriptions o
f sedimentary
depo
sits
and b
edro
ck m
ater
ials
.
ua c 3'' %
>.
ro
o
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Long. 119°02'16" DATE: 7/19/79 QUADRANGLE:CAMARILLO, C
SAMPLE DESCRIPTION
SANDY CLAY LOAM, dk. brown, poorly sorted, sand is mostly less than medium size some v. coarse sand and gravel to 20 mm, high plasticity, stiff.
GRAVELLY SAND, dk, brown, v. poorly sorted, 25% gravel to 30 mm, subrounded to sub- angular, dense.
SANDY LOAM, dk. brown, v. poorly sorted, 20% sub- angular gravel to 30 mm, medium plasticity, v. dense.
LOAM, brown, moist, medium plasticity, dense.
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/ GEOLOGIC Qa] . MAP UNIT: Holocene alluvium
fi DESCRIPTIONSE
° SANDY CLAY LOAM, dk. brown, poorly sorted, sand is mostly less than
medium size, some v. coarse sand and basalt gravel to 20 mm, high
- plasticity, stiff.
5
GRAVELLY SAND, dk. brown, v. poorly sorted, dense to v. dense. Contains
lenses of SANDY LOAM and SANDY GRAVEL.
10
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SANDY GRAVEL, most is less than 10
25
LOAM, brown, moist, medium plastic «/\d@n<;p.
COMMENTS: LOGGED BY: T. Fumal Figure 19 35
ALTITUDE: 5' LOCATION: Lot. 33°58'26" Long. n80 27'21"
DATE- 8/2/79 QUADRANGLE:VENICE, CA
SAMPLE DESCRIPTION
SILTY CLAY LOAM, v. dk. green ish grey, medium plasticity, soft, wet.
V. FINE SANDY LOAM, v. dk. grey, common shell fragments to 60 mm long. Slight plasticity, quick, wet.
V. FINE SANDY LOAM, black, some shell fragments, low plasticity, quick, wet, medium dense.
SAND, olive with common mottles of dk. yellowish brown, well- sorted v. fine to fine grained, quick, wet, dense.
SILT LOAM, v. dk. greenish grey, quick, moist, v. slight plasticity, some organic material.
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GEOLOGIC QalMAP UNIT: Holocene alluvium
^-. fl DESCRIPTIONol
" SAND, dk. grey, well-sorted, fine grained.
V. FINE SANDY LOAM, v. dk. grey, common shell fragments to 60 mm long. Slight plasticity, quick, wet,
-5 medium dense.
10
SAND, olive grey, well -sorted, v. -15 coarse grained, some gravel to 10 it
grading to fine to v. fine SAND olive mottled yellowish brown, quick, wet, den^e.
20
SILT LOAM, v. dk. greemsn grey 25 quick, moist, v. slight plasticity
some organic material.
»
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CONTINUED ON FOLLOWING FIGURE
COMMENTS: LOGGED BY: T. Fumal Figure 20 36
ALTITUDE:
DATE:
LOCATION: Lot. Long.
QUADRANGLE:
SAMPLE DESCRIPTION
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if DESCRIPTIONSi
so
. FINE SANDY LOAM, dk. grey.
-S5
LOAM, black, sand is v. fine grained, ' slightly plastic, quick, wet.
40
45
i
-50
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COMMENTS: LOGGED BY: T. Fumal Figure 20 continued 37
ALTITUDE- 26' LOCATION: MLiiiuut. *o Lflt 33045- 07"Long. 118°00'43"
DATF. ft/ft/7Q QUADRANGLE: DATE. 8/8/79 LQS ALAMITQS> CA
SAMPLE DESCRIPTION
SILTY CLAY LOAM, dk. greyish brown, medium plasticity, wet, micaceous, soft.
SILTY CLAY LOAM, olive grey, occasional small calcareous concretions, high plasticity wet.
SILT LOAM, dk. greenish grey, medium plasticity, slightly quick, wet, stiff.
SANDY LOAM, dk. greyish brown, sand up to v. coarse size, poorly sorted, medium plasticity, moist.
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HOLE No. 30 SITE: WESTMINSTER H.S.
GEOLOGIC Qac MAP UNIT: Holocene alluvium
if DESCRIPTIONol
o~ SAND, dk. greyish brown, well -sorted v. fine to fine grained, quick, moist, loose.SILTY CLAY LOAM, dk. greyish brown, medium plasticity, wet soft.
. K . - ** SAND, fine to medium grained.
SILTY CLAY LOAM and SILT LOAM, olive grey to dk. greenish grey, high to medium plasticity, wet, stiff.
10
15
SAND, grey, to v. ^coarse grained.
-20
fine gravel to 10 mm.
SANDY CLAY, brown
SAND, to v. coarse size.-25 SANDY LOAM, dk. greyish brown,
poorly sorted, sand mostly less thar medium size, some up to v. coarse, medium plasticity, moist.
_ SANDY CLAY, yellowish brown 30
COMMENTS: LOGGED BY: T. Fumal Figure 21 38
ALTITUDE: 610' LOCATION: Lot. 34°10'50" Long. n8°18'15"
DATE- 8/1/79 QUADRANGLE:BURBANK, CA
SAMPLE DESCRIPTION
FINE SANDY LOAM, dk, brown, occasional v. coarse sand and gravel, medium plas ticity, moist, loose.
SANDY LOAM, brown, poorly sorted, mostly finer than coarse sand, some granitic gravel, v. dense.
SANDY LOAM and LOAMY SAND, dk. brown, poorly sorted, slight plasticity, quick, moist, occasional fine gravel to 5 mm.
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SITE: BURBANK FIRE STATION
GEOLOGIC 2? . MAP UNIT: Pleistocene alluvium
^^f| DESCRIPTION*£o£
FINE SANDY LOAM, dk. brown, some v. coarse sand and fine gravel, mediuir plasticity, moist, loose.
5
grading coarser to SANDY LOAM, v. dense.
10
GRAVELLY SAND, granitic.
15
SANDY LOAM and LOAMY SAND, dk. brown, poorly sorted, slight
-20 plasticity, quick, moist, occasioi fine gravel to 5 mm.
-25
30
COMMENTS: " LOGGED BY: T - Fumal Figure 22 39
ALTITUDE: 10'
DATE: 8/10/79
LOCATION:Lot. 33°37 I 15" Long. 117°53'30"
QUADRANGLE:NEWPORT BEACH, CA
HOLE No. 32SITE: SHELLMAKER ISLAND
GEOLOGIC Qac/TmMAP UNIT: Holocene alluvium/Monterey
SAMPLE DESCRIPTION I DESCRIPTION
V. FINE SANDY LOAM, dk. bluish grey mottled black, common organic matter, medium plasticity, slightly quick, wet, loose.
SHELLS with v. fine sand matrix, 80% small shell fragments, grey, wet, loose.
SAND, greyish brown, well-sorted, fine grained, common shells, dry.T. FINE SANDY LOAM, dk. bluish grey mottled black, common organic matter, medium plasticity, slightly quick, wet, loose.
SHELLS with v. fine sand matrix, grey, wet, loose.
SILTY CLAY, mottled dk. grey and pale olive, high plasticity, wet, some sand sized calcareous con cretions. V. stiff.
SILTY CLAY, mottled dk. grey and pale olive, high plas ticity, wet, 10% sand sized calcareous concretions.
'.97
SHALE, black, firm to soft, close to v. close fracture spacing, occasional v. fine sand laminations inclined 30°.
.MS- Fis? -25
SHALE, grey to black, firm to soft, close to v. close fracture spacing, occasional v. fine sand laminations inclined 30°.
30
COMMENTS:Figure 23 40
LOGGED BY: T. Fumal
ALTITUDE- 53' LOCATION: Muiiiuut. Lgt 33049 i 4r
Long. n80 01'20" DATE- 8/7/79 QUADRANGLE:UHlt. / //* LQS ALAMITOSj CA
SAMPLE DESCRIPTION
SILT LOAM, olive grey, medium plasticity, quick, wet, soft.
LOAM, v. dk. grey, sand is v. fine grained slightly plastic, wet, contains lenses of well -sorted fine sand.
SAND, dk. greyish brown, well- sorted fine to medium grained, angular to sub- rounded, quick, wet, v. dense.
t
V. FINE SANDY LOAM
SAND, v. dk. greenish grey, poorly sorted, mostly medium to coarse sand, some rounded gravel to 25 mm. , v. quick, wet.
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HOLE No. 33 SITE: CYPRESS COLLEGE
GEOLOGIC Qac MAP UNIT: Holocene alluvium
fl DESCRIPTIONo!
SAND, dk. greyish brown, v. well- sorted, fine grained, loose , drv.SILTY CLAY LOAM to LOAM, olive grey to v. dk. grey, medium to slight plasticity, wet, soft.
5
»
SAND, dk. greyish brown, well- -IO sorted fi ne to medium grained,
angular to subrounded, quick, wet, v. dense.
SILTY CLAY, olive.
SAND, v. dk. greenish grey, poorly sorted, mostly medium to v. coarse
.15 sand, some rounded gravel to 25 mm. Contains thin lenses of SANDY LOAM.
-20
-25
50
COMMENTS: LOGGED BY: T. Fumal Figure 24 41
ALTITUDE: 500 ' LOCATION : o
Long. 119° DATE: 7/18/79 QUADRANGL
SAMPLE DESCRIPTION
CLAY LOAM, v. dk. greyish brown, sand is fine grained,high plasticity, moist, v.stiff.
CLAY LOAM, dk. greyish brown,high plasticity, moist, v.stiff.
LOAMY FINE SAND, yellowishbrown, medium dense.
GRAVELLY SANDY LOAM, dk.yellowish brown, poorly sorted, 30% is greater than 4 mm, most is finer than medium sand, v. dense.
SILTY CLAY LOAM, yellowishbrown, high plasticity,moist, hard.
COMMENTS:Figure 25
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HOLE No. 34
SITE: VENTURA PISTOL RANGE
GEOLOGIC QsMAP UNIT: San Pedro Formation
|| DESCRIPTION
0 CLAY LOAM, dk. greyish brown, v. stiff, and LOAMY FINE SAND, yellow ish brown, medium dense to v. dense. Contains lenses of angular reddish brown v. coarse sand and finegravel .
-5
10
-
15
GRAVELLY SANDY LOAM and GRAVELLY SAND, dk. yellowish brown, poorly
-20 sorted, v. dense. Contains boulders to 60 cm.
-25
SILTY CLAY LOAM, yellowish brown high plasticity, moist, hard.
30
1 LOGGED BY: T. Fumal
ALTITUDE: 72'
DATE: 7/16/79
LOCATION : Lot. 34°13'33" Long. 119 0 1T14"
QUADRANGLE:OXNARD, CA
SAMPLE DESCRIPTION
LOAM, greyish brown, with common mottles of yellowish brown, sand is v. fine grained, high plasticity, moist, stiff.
GRAVELLY SAND, It. olive brown, poorly sorted, 30% flat shale fragments to 20 mm, moist, quick, v. dense.
COMMENTS:Figure 26
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GEOLOGIC Qd MAP UNIT: Deltaic deposits
»>.
f| DESCRIPTIONSi
0LOAM, greyish brown to yellowish brown, sand is v. fine grained, high plasticity, moist, stiff.
-5
GRAVELLY SAND, It. olive brown, poorly sorted, up to 50% flat shale fragments to 50 mm., v. dense. Contains lenses of SILTY CLAY, greyish brown.
10
15
-20
-25 SAND, mostly medium grained with lenses of silty clay.
-mo
LOGGED BY: T. Fumal43
ALTITUDE- 31 ' LOCATION:ALllTUUt. 01 Lof 34 o 10 . 37 "
Long. n9°n i 05" DATE: 7/17/79 QUADRANGLE:
OXNARD, CA
SAMPLE DESCRIPTION
SAND, greyish brown, mostly medium to v. coarse sand, v. dense.
NO RECOVERY
V. FINE SANDY LOAM, dk. green ish grey, slight plasticity, quick, wet, dense.
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HOLE No. 36 SITE: SAN MIGUEL SCHOOL
GEOLOGIC Qd MAP UNIT: Deltaic deposits
if DESCRIPTION Si
-0FINE SANDY LOAM, v. dk. greyish brown, medium plasticity, moist.
SAND, greyish brown, mostly medium to v. coarse sand, v. dense.
5
SILTY CLAY, dk. grey.
10SANDY GRAVEI
SAND, well -sorted, medium to coarse grained.
15 grading finer to fine to medium grained SAND.
some gravel to 25 mm.
-20
25
grading finer to V. FINE SANDY LOAM.
50
COMMENTS: " LOGGED BY- T - Fumal Figure 27 44
ALTITUDE 50' LOCATION: ALTITUDt. L 33049.45"Long. H8°22'43"
DATE: 8/6/79 QUADRANGLE:REDONDO BEACH, CA
SAMPLE DESCRIPTION
NO RECOVERY
SAND, yellowish brown, well- sorted, coarse grained, rounded to subrounded, v. dense.
SAND, yellowish brown with mottles of strong brown, well -sorted, fine to v. fine grained, subrounded to sub- angular, moist.
1
137
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HOLE No. 37
SITE: ALTA VISTA PARK
GEOLOGIC Qso MAP UNIT: Older dune sand
fl DESCRIPTIONSi
0 SILTY CLAY, white.SAND, greyish brown, well -sorted, fine grained, medium dense.
.5 SAND, yellowish brown, well -sorted, mostly fine to medium grained, v. dense.
10
grading to coarse SAND.
15
grading to v. fine to fine SAND.
20
25
SO
COMMENTS: Finer grained and better sorted than LOGGED BY: T. Fumalt^L HjrporJ o n s i t e .
~ ~ "* 45
ALTITUDE- 1 0 ' LOCATION : MUIII Lot. 33°44'44"
Long. n8°05'06"DATE- 8/9/79 QUADRANGLE: UMIC - ' ' SEAL BEACH, CA
SAMPLE DESCRIPTION
CLAY LOAM, dk. greenish grey mottled strong brown, sand is mostly v. fine grained, high plasticity, wet, medium stiff
LOAMY V. FINE SAND, olive brown mottled yellowish brown, slightly plastic, moderately quick, moist.
SILTY CLAY LOAM, dk. grey, slightly plastic, wet, indistinct dk. brown organic laminations inclined 20-30°.
SILTY CLAY LOAM, dk. greenish grey, medium plasticity, wet. Contains v. thin lenses of well -sorted v. fine sand - ripples and burrows.
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HOLE No. 38 SITE: SEAL BEACH WEAPONS STATION
GEOLOGIC Qac Holocene alluviumMAf* UNIT: Qtm Marine terrace deposi
fl DESCRIPTIONol
° SAND, well -sorted, medium grained.SILTY CLAY LOAM and CLAY LOAM, dk. greenish grey mottled strong brown, high plasticity, medium stiff, wet.
-5 SAND, yellowish brown to strong brown, well -sorted, medium to coarse grained.
grading finer to v. fine SAND, olive brown.
10
SAND, grey fine grained.
15. _ _grading coarser to coarse SAND.
.20 Interbedded SILTY CLAY LOAM, dk. greenish grey, and SAND, dk. grey, fine grained.
-25
30
COMMENTS: LOGGED BY: T. Fumal Figure 29 46
ALTITUDE- 1200' LOCATION: MLiuuut. Lof 33059. 12 ..Long. n7°48'57"
DATE- 8/15/79 QUADRANGLE:UM.t. I^U? YQRBA LINDA> ^
SAMPLE DESCRIPTION
GRAVELLY CLAY LOAM, mottled v. dk. grey, dk. olive grey, dk. yellowish brown.
SHALE, olive, with laminations of strong brown fine sand stone, slakes to gravelly clay loam, moderately to deeply weathered, firm to soft, close to v. close fracture, moist.
SHALE, dk. greyish brown, strong brown fracture sur faces, moderately to deeply weathered, firm to soft, close to v. close fracture.
SANDSTONE, olive brown, some dk. grey shale, moderately to deeply weathered, firm to soft and friable, v. fine grained, closely to moderately fractured.
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HOLE No. 39 SITE: RIDGELINE WATER TANKGEOLOGIC TpsMAP UNIT: Puente Fm - Soquel member
fl DESCRIPTIONol
"° SHALE, olive to dk. greyish brown with some laminations of strong brown fine sandstone, slakes to
" GRAVELLY CLAY LOAM, moderately to deeply weathered firm to soft, close to v. close fracture spacing.
5
-10
15
»
-20
SANDSTONE, olive brown, some dk. grey shale, moderately to deeply weathered, firm to soft and friable, closely to moderately fractured.
25
-*n
COMMENTS: LOGGED BY: T. Fumal Figure 30 47
ALTITUDE- 1030 ' LOCATION:^^*"** » ^**^fc»« 1 * OOOCOI CCH
LOT* J*3 DO DDLong. 11 7*49 '07"
DATE- 8/14/79 QUADRANGLE: UMIt - ' ' YORBA LINDA, CA
SAMPLE DESCRIPTION
SANDY CLAY LOAM, yellowish brown mottled v. dk. greyish brown, sand is mostly finer than medium sand, medium plasticity, stiff.
SHALE, dk. olive brown, moderately to deeply weathered, soft, closely to v. closely fractured.
SANDSTONE, It. olive brown, moderately to deeply weathered, soft to firm, moderately fractured.
SHALE, black, with occasional laminations fine to medium grained SANDSTONE, fresh, firm to hard, v. closely to closely fractured.
1
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HOLE No. 40 SITE: DIAMOND BAR
GEOLOGIC TpsMAP UNIT: Puente Fm - Soquel membe
ti DESCRIPTIONo!
.n SANDY CLAY LOAM, yellowish brown mottled v. dk. greyish brown, medi plasticity, stiff.
-5SHALE, dk. olive brown, moderate 1: to deeply weathered, soft, close!, to v. closely fractured. Contain beds of SANDSTONE, It. olive brow soft to firm, moderately fracture
10
SHALE, black, with occasional lan ations of fine to medium grained SANDSTONE, fresh, firm to hard, \ closely to closely fractured.
15
-20
25
*
30
COMMENTS: u* \ LOGGED BY: T. Fume
ALTITUDE- 1450 ' LOCATION: MLilTUUt. Lof 34 o 17 , 29"Long. 118°24'15"
DATE- 7/31/79 QUADRANGLE: UAit. //Ji//y SAN FERNANDO> CA
SAMPLE DESCRIPTION
SANDSTONE, yellowish brown, v. coarse grained, some gravel to 20 mm, moderately to deeply weathered.
Interbedded CONGLOMERATE, dk. yellowish brown, 80% v. coarse sand to fine gravel, some to 60 mm subrounded to subangular, SILTSTONE, dk. brown with strong brown laminations and SANDSTONE It. brownish grey, fine grained, moderately weatherec firm to soft, moderate and wider fracture spacing, beds inclined 45°.
ft
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HOLE No. 41
SITE: SKY TERRACE
GEOLOGIC Tm MAP UNIT: Modelo Fm.
fl DESCRIPTIONo!
0 V . "T~ JJ" J-VUUIJU AUPMIW J IIInterbedded CONGLOMERATE and V. COARSE SANDSTONE, wide variety of rock types: sandstone, volcanic and granitic, moderately to deeply weathered firm to soft, moderate and wider fracture spacing. Contains some beds of SILTSTONE.
5
10
15
CONGLOMERATE, yellowish brown to greyish brown, mostly v. coarse sand and fine gravel, angular to subangular, firm to hard, moderate and wider fracture spacing,
20 moderately weathered to fresh. Contains some beds of FINE SANDSTONE.
-25
»
-30
COMMENTS: Stopped drilling at 27.8 m because^ LOGGED BY: T - Fumal drilling rate was very slow in hard formation.
Finiira ?? 40 -
ALTITUDE: 1400'
DATE: 7/26/79
LOCATION: Lot. 34°19 I 05" Long. 118°25 I 52"
QUADRANGLE:SAN FERNANDO, CA
SAMPLE DESCRIPTION
SANDY LOAM, dk. brown, sand is mostly medium grained, some granitic gravel to 40 mm is soft and friable, slightly plastic, dry, medium dense.
SANDY LOAM, dk. brown, sand is mostly medium grained, some granitic gravel to 15 mm, dense.
COMMENTS:Figure 33
fi
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HOLE No. 42 SITE: SYLMAR NURSERY
GEOLOGIC Qal MAP UNIT: Holocene alluvium
f| DESCRIPTION
0SANDY LOAM, dk. brown, sand is mostly medium grained, some granitic gravel to 40 mm, slightly plastic, medium dense to dense. Contains lenses of well -sorted coarse to v. coarse SAND.
-5
-10
SAND, brown, mostly coarse to v. coarse grained, rounded to sub- angular, v. dense. Contains lenses of GRAVELLY SAND.
15
-20
-Z5
30
LOGGED BY: T - Fumal 50
ALTITUDE: 1260 ' LOCATION : o Long. n80 26'49"
DATE: 7/29/79 QUADRANGLE:
SAMPLE DESCRIPTION
SANDY LOAM, v. dk. greyish brown, micaceous, slightly plastic, dry, medium dense.
SANDY LOAM, dk. brown, sand is mostly finer than fine sand, some gravel to 4 mm, micaceous, slightly plastic, quick, moist, v. dense.
NO RECOVERY
I
2-4?
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COMMENTS:Figure 34 51
HOLE No. 43 SITE: SYLMAR PARK
GEOLOGIC Qal MAP UNIT: Holocene alluvium
|| DESCRIPTION
0SANDY LOAM, v. dk. greyish brown, micaceous, slightly plastic, dry, medium dense.
-5
SAND, brown, well -sorted, medium to coarse grained, some gravel to 15 mm, angular to subrounded.
SANDY LOAM, dk. brown, sand is mostly finer than fine sand, some
10 gravel to 4 mm, moist, v. dense.
SAND, well -sorted coarse to v. coarse, some granitic gravel
GRAVELLY SAND. -15
COBBLE GRAVEL, granitic.
SANDY LOAM, brown, v. dense.
25
30
LOGGED BY: T - Fumal
ALTITUDE: 1620 1
DATE: 7/30/79
LOCATION:Lot. 34°i9 l 49" Long. >n80 27 l 05 11
QUADRANGLE:SAN FERNANDO, CA
SAMPLE DESCRIPTION
NO RECOVERY
SANDSTONE, yellowish brown, medium to coarse grained, substantial gravel some to 30 mm, soft, deeply weathered.
SANDSTONE, greyish brown to strong brown, poorly sorted, mostly medium to v. coarse grained, some fine gravel, soft.
COMMENTS:C-»nnv»o 35
*? E
its
Z-17
Blows/ Foot
19,/£
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1 '.V.V '.V.V . . .v»
£ ; ;
I .... .... > . . .... » . . . ........ > . . . .... 1 .... ....; : : : : ...: : : : : '.V.V '.V.V '.V.V .V.V 1 1 ,v.v. .v. ,v.v.AZA3.,'. . . .
.V.V.,v.v. I : : : : 1 1 1 *,v.v f-X-X.... .... 1
P.'. .*. ,.V.V.....: : : : :. . % . » . . . « ....: : : : :....V.V.''.*.*. . . . . «
HOLE No. 44
SITE: HILLTOP HOUSE
GEOLOGIC Te Elsmere member of MAP UNIT: the Repetto Fm.
fi DESCRIPTIONSi
.ft __,_ ._..... ,_ . ,_ _,,._ ..,, v SAND, strong brown, mostly fine to
medium grained, some gravel to 15 mm loose, dry, deeply weathered SANDSTONE.
5
SANDSTONE, yellowish brown to strong brown, medium to v. coarse grained, substantial gravel to 30 mm, soft to firm, deeply to moderately weathered
i 10
^15
-20
SANDSTONE, It. grey, medium to coarse grained, slightly weathered to fresh, firm to soft, moderate e
-25 w^ der fracture spacing.
BO
LOGGED BY: T. Fumal
ALTITUDE: 860'
DATE: 7/23/79
Long. 118°33'07"QUADRANGLE:
CANOGA PARK, CA
HOLE No. 45
SITE: CEDAR HILLS NURSERY
GEOLOGIC TmMAP UNIT: Modelo Fm
SAMPLE DESCRIPTIONo
DESCRIPTION
SILTY CLAY LOAM, olive, v. stiff, slight plasticity, deeply weathered shale (shale parting visible).
SILTY CLAY LOAM, yellowish brown to olive, v. stiff, slight plasticity. Deeply to moderately weathered SHALE.
SHALE, black, soft to firm, v. close horizontal parting, close to v. close fracture spacing, fresh.
SHALE, black, firm to soft, v. close horizontal parting, close to v. close fracture spacing, fresh.
10
-15
-20
25
COMMENTS:Figure 36
Rapid fluid loss at 24.5 m.53
LOGGED BY: T. Fumal
ALTITUDE- 870 ' LOCATION: ALTITUUt. Lot. 34°14'22"
Long. n8°3T21" DATE: 7/24/79 W*S**ff}* : CA
SAMPLE DESCRIPTION
GRAVELLY SAND, brown, v. poorly sorted, 30% gravel to 30 mm subangular, v. dense.
FINE SANDY LOAM, yellowish brown, and SAND, well -sorted, fine to medium grained, rounded to subangular moist, dense.
LOAM, brown, sand is v. fine grained, occasional gravel to 30 mm, medium plasticity, moist, v. dense.
»»
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'£ ^ a. »£ 5o
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." " "
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'.*"'.'."'.'.' '."'.'.'*.'.'
'.*"'.'.'*.'.'
HOLE No. 46 SITE: CAL STATE NORTHRIDGE
GEOLOGIC QaJ MAP UNIT: Holocene alluvium
|| DESCRIPTION
0 GRAVELLY SAND, brown, v. poorlysorted, v. dense. Contains lenses of SANDY LOAM, yellowish brown.
FINE SANDY LOAM and LOAM, yellowish - brown to brown, occasional gravel to
"° 30 mm. Contains lenses of SAND, well -sorted, fine to medium grained, dense to v. dense.
10
15
-20
25
30
COMMENTS: LOGGED BY: T - Fumal
Fiqure 37 54
CAMARILLO STATE HOSPITAL SITE 28 WESTMINSTER HIGH SCHOOL SITE 30
VERTICAL
O.l»tc O.Utc
50
12.5
17.5
20.0
25.0
275
O.IMC.
<mh 11 il
VERTICALO.IMC.
Figure 38 Finure 40
55
DE
PT
H
(m)
< 2
cn
4.
T
o
SHELLMAKER ISLAND SITE 32
BURBANK FIRE STATION SITE 31
0.1
22.6
Figure 41Finure 42
57
CYPRESS COLLEGE SITE 33 VENTURA PISTOL RANGE SITE 34
5.0
7.5
15.0
17.S
20.0
23.8
*v-S ^
/« I '
VERTICAL
0.1 sec.
' \j'Wxxk/^-
Figure 43
5.0 -^:;.
0 12.5
17.5
25.0
27.5
29.2
"ft.1
~lj!V
VERTICAL
0.1 sec.
Figure 44
58
SIERRA LINDA SCHOOL SITE 35 SAN MIGUEL SCHOOL SITE 36
~ 12.5
15.0
' ', ' T,
-J>M
20.0
22.5
25.0
27^
26.6
0.1 »«c. 0.1 MC.
0 i M H 11111 i'i M| til l|
2.5
5.0
7.5
<
__7/ ,
uo-^-^v-A/V |
^
Figure 45
VERTICAL
0.1 »«c.ti ill I I H
"1 "2
0.1 **C. 0.1 MC.
0| II II I Ml l[ II Illl It l[
VERTICAL
0.1 MC.
^:,v;;^v
j
10.0
20-0
30.0
v-V '*:,
Figure 46
59
ALTA VISTA PARK SITE 37 SEAL BEACH WEAPONS SITE 38
5.0
20.0
29.9
VERTICAL
0.1 »ecllllldlll
Figure 47
H VERTICAL 2
2.5
5.0
22.5
25.0
26.7
Finure 48
0 1 »ec.
60
DEPTH
Cm)
C.Y
* 1
O
r-
DEPTH
(m)
IQ C rt> en o
<<
? I
If *'
XT"T
n^c
4-P
SKY TERRACE
0.1 ««c.
2.5
5.0 U- /v^v
15.0
17.5
20.0
22.5
ft'
SITE 41
VERTICAL
SYLMAR NURSERY SITE 42
0.1
.' ' ' ,.'.%VV Uf>:^t .'"' .* ,
ijfv^
^^& ^i*^
fi.<i' ;: T p I
^nf/v^Vr
?i/v~»>
Figure 51Figure 52
62
SYLMAR PARKSITE 43
VERTICAL
0.1 »ec.
HILLTOP HOUSE
Figure 53Figure 54
63
CEDAR HILL NURSERY SITE 45 CAL STATE NORTHRIDQE SITE 46
0.1 **c.
2.5
6.0
7.6
10.0
~12.6
X
o.UJ°16.0
17.6
20.0
22.5
26.0
27.5
29.
-.'
VERTICAL
0.1 »«c. 0.1 t«c. 0.1 »«c.
0 | MH|lHl[ |Mlt|lltl|
10.0
16.0
17.6
20.0
22.6
25.0
27.6 7\
;!: '.'!
m
VERTICAL
0.1 tec.4 I|I I I l[
yv
Figure 55 Figure 56
64
CO ft) en
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ena
o
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r O O
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^ O
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70
10-
s*IS<*.
U4
90-
PArriw»\
SARD, dk. grey, grained.
V. FINE SANDY LOAM, grey
medium dense
10
SAND, olive grey .» coarse grained
fine to v. fine olive/yellowish brown, dense
20
SILT LOAM, v. flK 25 greemsn grey
30-
FINE SANDY LOAM dk. grey
LOAM, black, sa
40
Figure 58 66
10
s\rc NO. 30
ZOM
10-
/SO
30i-
SAND, greyish orown
looseSILTY CLAY LOP
greyish brown soft
" SAND, fine to medium
10
SILTY CLAY LO/ SILT LOAM, greenish grey
5tiff
15
SAND, grey,
20
fine gravel
SANDY CLAY brown
SAND.25 SANDY LOAM
greyish browr
30SANDY CLAY
Figure 59 67
F\RE STATION SlTZNO.3!
10
IhQ.bJ £
/o
«\
QF
PArr.val
.rst S
Velocity CM/S)
10
FINE SANDY LOAM
grading coarser to SANDY LOAM
GRAVELLY SAND 15
SANDY LOAM and LOAMY SAND
25
30
Figure 60 68
DE
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rtf
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io\
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(nsec.^
StTEfl/0.33
70 //o
1-5
SAND
SILTY CLAY LOAM to LOAM
SAND
SILTY CLAY
SAND
£ #1-30
Figure 62 70
VENTURA PISTOL
CLAY LOAM and LOAMY FINE SAND
GRAVELLY SANDY LOAM and GRAVELLY SAND
.SILTY CLAY LOAM
30
figure 63 71
k
zo
5/ERRA LINDA SCHOOL
TIME (M.S£X)fO__________TC to
51T£ NO. .
0-
OFirit PArrival
O Fir«tS Arrival
$
,K .».q6
P^J
LOAM
GRAVELLY SAND
10
-15
-20
25 SAND
30.
Figure 64 72
10 T~
x"
CL
SAN MIG-UFL SCHOOL S/Tif A/0.36
Tine
QF,r,t $ Arr.vol
AF«r«t$ Pe«k
-5
SANDmedium to coarse
-15 fine to medium to
FINE SANDY LOAM
SAND
SILTY CLAY
SANDY GRAVEL
some gravel
20
25
V. FINE SANDY LOAM
30
Figure 65 73
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5£AL B&ACH WEAPONS STAT/ON
(M5EC)
SITE NO. 38
//O
S P«alc
O.a
SAND
SILTY CLAY LOAM and CLAY LOAM strong brown
-5 SAND, yellowish brown to strong
medium to coarse
. v. fine SAND olive brown
10
SAND, grey grained
"15 _ _ _ _grading coarser to coarse
. 20 CLAY LOAM and SAND grey, fine grained. dk. grey
30
Figure 67 75
RIP&ELINE WATER TAMK
SHALE deeply weathered firm to soft
SANDSTONE . moderately to deeply weatheredfirm tosoft and friable
-. _.. ~ CO 76
DIAMOND BAR
/O
v^X
a, LJ
OFir«t F A
60*1 Vel»c.t Y CM/*)
SANDY CLAY LOAM
SHALEmoderately to deeplyweathered f soft
10
tig. SHALE, blackfresh, firm to hard
15
-20
25
38SE 30
Figure 70 77
SKY T£7?fiAC£ 1HENO.HI
TIMEto
a. u
D t.r.* 5 *<W
Interbedded CONGLOMERATE and V COARSE SANDSTONE moderately to deeply weatheredflrm to soft
-15
CONGLOMERATE firm to hard
25
Figure 7078
SYLMAR NURSERY SHE NO.^Z
SANDY LOAM. Contains lenses of coarse to v. coarse SAND
SAND, coarse to v. coarse Contains lenses of GRAVELLY SAND.
30"
Figure 71 79
SVLMAK PARK
/o
&
/o *
Efc.
SANDY LOAM
SAND, medium to coarse
SANDY LOAM
SAND,coarse to v coarse
GRAVELLY SAND.
COBBLE GRAVEL
SANDY LOAM
Figure 72 80
HILLTOP HOUSE
10 3e
** P Arri
irjT 5 A-r.
Velocity
a Uj
»'
I*-* -
V.V, .'.V.V
iviv.m ..
. . .'. 4-
m
SAND, fine to medium grained
SANDSTONE, soft to firm, deeply to moderately weathered
10
15
20
SANDSTONE, firm to soft, slightly weathered, to fresh
25
ISO
Figure 73
CEDAR HILLS NURSERY SITE NO. 15
TtME (ASEC)
DK,r,1 S
.rjt 5 Peak
VeUt.+y
=======-20
=3E=E= 25
SILTY CLAY LOAM Deeply to moderatelyweathered SHALE SHALE.
SHALE,soft to firm, close to v.
close fracture fresh
SO
Figure 74 82
Ut
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o >
DSfe
li
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« 8
8 S
^i^;S{ii!:!^-ii!\:v::|J:ii::!'f!vi^V\*:S^sV:^
oc o
CO
00
LO
O)
Table 1
TBAYEL-TIBES ARC AVERAGE VELOCITIES
SITE NO. 28 CAHABILLO STATE HOSP II DATE LOGGED 11-29-79 PLANK DIST= 2.0 PLATE DIST= 2.0 AVf CEIG1N COfcfi^ 0.005
AVE V£L S HAVE
DEPTH
(«)
2.55.07.5
10.012.515.017.520.022.525.027.529.2
DEPTH
(H)
2.55.07.5
10.012.515.017.520.022.525.027.529.2
OBIGINCOBR(S)
0.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0060.004
FIRST SPEAK
(S)
0.0250.0360.0430.0500.0580.0650.0700.0790.0850.0920.0960.099
FlfcST SAfcBIVAL
(SJ
0.0170.0270.0350.0420.0500.0580.0630.0710.0770.0840.0880.091
C06B P TIfl£S PEAK
(S) (S)
0.020 0.0110.033 0.0150.042 0.0 1t>0.049 0.0150.057 0.0190.064 0.02*:0.07C 0.0240.079 0.0270.085 0.0400.092 0.0470.096 0.0490.099 0.051
CCfifiS HUE
(S)
0.0130.0250.0340.0410.0490.0570.0630.0710.0770.0840.0680.091
COfifiP 1IHE
(S)
O.C090.0140.0140.0160.019O.C220.0240.027C.0400.0470.0490.051
188199221242253260279283293293313321
AVE VEL F HAVE
291359517637666687733744564533562573
84
Table 2
TRATEL-TIflES AMD AVERAGE VELOCITIES
SITE BO. 29 PLANK DIST*
HARINA DEL BEX2.0 PLATE D1ST= 2.0
DATE LOGGED 11-26-79 AYE ORIGIN C0h&= 0.005
DEPTH
t«)
2.55.07.5
10.012.515.017.520.022.525.027.530.032.535.037.539.7
ORIGINCORT?(S)
0.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.005
FIfeSI SA&falVAL
(S)
0.0200.0360.0520.0660.0770.0880.0960.1050. HJ0.1220. 1290.1370. 1440.1510.1580.165
cofcbS 1IBE
(S)
0.0160.0350.0500.0650.0760.0870.0950.1040.11J0.1220.1290.1370. 1440.1510. 1580.165
AVE VEL5 HAVE
(»/S)
1601411491541641711831911992052132192262J2237240
DEPTH
CH)
2.55.07.510.012.515.017.520.022.525.027.530.032.535.037.539.7
PIRST SPEAK(S)
0.0280.0450.0580.0720.0830.0940.1020.1110. 1190.1280.1360.1440.1510.1580.1660.173
CORRS PEAK
(S)
0.0220.0420.0560.0710.0820.0930. 1010.1100.1190.1280. 1360.1440.1510.1580. 1660.173
P TIfl£
<S)
U.01J0.0 1J0.0140.0150.0170.01d0.0190.0214). 0220.02J0.0250.0260.0260.030O.OJ10.032
CCRflP TIRE
(S)
O.C100.0120.0140.0150.017C.C180.0190.0210.0220.0230.0250.0260.0280.0300.031C.CJ2
AVE VELP WAVECM/S)
24641455467974484092795710301090110011601160117012101240
85
Table 3
TRAVPL-TIflES AND AVIBAGE VELOCITIES
SITE NO. 30 WESTMINSTEB CATE LOGGED 11-27PUNK DIST= 2.0 PLATE DIST= 2.0 AVE ORIGIN C0fifi= 0.0
AVE VEL S HAVE
(tt/S)
107
DEPTH
(H)
2.55.07.5
10.012.515.017.520.022.525.027.529.5
DEPTH
(H)
2.55.07.5
10.012.515.017.520.022.525.027.529.5
ORIGINCOBR(S)
0. 0060.0060.0060.0060.0060.0050.0070.0060.0060.0060.0060.005
FIRST SPEAK
IS)
0.0230.0370.0490.0610.0720.0850.0950.1040.1150.1220.1310.135
FIflSI SA&BIVAL
(S)
0.0170.0300.0430.0550.0660. 0790.0890.0960. 1070. 1140.1230. 129
CORR P II HES PEAK
(S) (S)
0.018 0.0130.034 0.0150.047 0.0190.060 0.0200.071 0.0220.084 0.0240.094 0.0250.104 0.0270.115 0.02d0.122 0.0300.131 0.0310.135 0.035
CCRBS 1IHE
(S)
0.0130.0280.0420.0540.0650.078O.C690.0960.1070. 1140.1230.129
CCKBP TIHE
(S)
0.010O.Q14O.C180.0200.0220.0240.0250.0270.0280.030C.C310.035
180185191191197204210219224229
AVE VEL P HAVE
(H/S)
246359408509575630704744806835889844
86
Table 4
TBAVEL-TIHES AND AVERAGE VELOCITIES
SITE WO. 31 PLAWK DIST«
BORBANK FI*E STATION 2.0 PLATE DIST- 2. 0
DEPTH
cm2.55.07.5
10.012.515.017.520.022.524.0
DEPTH
(H)
2.55.07.5
10.012.515.017.520.022.524.0
OPIGIHCORF(S)
0.0050.0050.0050.0050.0050.0050.0050.0050.005O.OOU
FIRST SPEAK
(S)
0.0160.0190.0260.0320.0380.0430.0490.0540.0600.063
FlfiST SABBIVAL
(S)
0.0090.0140.0210.0260.032O.OJ70.0430.0460.0540.057
CORK P HflES PEAK
(S) (S)
0.013 O.OC90.016 0.0120.025 0.0160.031 0.0200.038 0.0230.043 0.0260.049 0.0290.054 0.0310.060 0.0330.063 0.035
CCFP5 1IHE
!S)
0.0070.0130.0200.0260.0320.0370.0430.0460.0540.057
CCBBP HflE
(S)
0.0070.0110.0150.020C.0230.0260.0290.031O.C330.035
EAIE LOGGED 11-16-79 AVE CBIGIN COKfl= 0.005
AVE VEL S HAVE
(H/S)
351361367390394407406417417421
AVE VEL P HAVE
(B/S)
355448 485 509 J550 562 607 648 684 668
87
Table 5
TRAVEL-TINES AND AVEBAGE VELOCITIES
SITE NO. 32 SHELLHAKER ISLANL DATE LOGGED 11-20-75 PLANK DIST= 2.0 PLATE DIST= 2.0 AVI CBIGIN COBB= 0.004
DEPTH
(H)
2.55.07.510.012.515.017.520.022.525.027.529.0
OHIGINCORK(S)
0.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004
ricsi sAfi&IVAL
(S)
0.0140.0260.0370.0480.0610.0740.0830. 0960.1000. 1050.1090. 112
CCBBS 1IKE
(S)
0.0110.0240.0360.047O.C600.0730.0820.0960.1CO0.1050.1090.112
AVE VELS HAVE(M/S)
226207209212207204212209225236252259
DEPTH
{«)
2.55.07.510.012.515.017.520.022.525.027.529.0
FIRST SPEAK<S)
0.0220.0320.0440.0540.0670.0800.0890. 1010.1080.1130.1180.120
CORRS PEAK
(S)
0.0170.0300.0430.0530.0660.0790.0880.1000.1080. 1130.118C.120
P Ilflfi
(S)
0.011o.ou0.0140.0150.0170.0190.0200.0210.0220.0240.0260.027
CCRBP TIRE
(S)
0.0090.0120.0140.0150.017O.C190.0200.0210.0220.024O.C260.027
AVE VELP WAVE(»/S)
2914145546797447968809571030104010601080
88
00 10
ro uo
o « " o I o o KJ
to r
o
en o
00
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*«
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, K
;
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«*
en o
to
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en
o o
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o o
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UlU
ION
O^U
I
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o o
o o
oO
O O
O O
0 O
c o
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o o
oo o
o o
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o
o12
o
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OB
O M
«^ M
fiO to
to
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W
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5*
to
H tx
tO N
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oo e
n
0 0
O 0
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0 0
c
JO
WD
K
00
to o o o 0 0 o o 00 a
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1
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O 0
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«o a
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n
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c
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91
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or*
M^^
^9
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t 9C
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M
HI
UII
W
to n
M
0 T
J90
*o t
o
HI
O
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- C?
fi"^
t"1
Hft
*4
fj
II O
HI art I M a to as r4 O nfl
O n M W to
-H
Oi
cr
n>
oooooooooo
n
*^ M
OO
OO
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OO
O
to M
Wto
toto
to-*
-*-*
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31 t
d
^^
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^^ w
fas
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n
^ M O
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10 M W
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j ^^ e
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Cw to «
i^ ^"^
yw ^
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D OD ^ so
ct> o\ en
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;Cu^
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N ""s
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OO
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OL
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O
I UD
Table 7
TRAVEL-TIF1ES AND AVERAGE VELOCITIES
SITE HO. 34 fEHTOBA PISTOL RANGE DATE LOGGED 11-30-79 PLANK DIST- 2.0 PLATE D1ST= 2.0 AYE ORIGIN COKB = 0.005
DEPTH
(«)
"> **£ . J
5.07.5
10.012.515.017.520.0">J 5£.£. J
OK A£. J V»
27.529.2
OBIGIN COBRCS)
0.0050.0050.0050.0050.0050.0050. 0050.0070.0050.0050.0050.005
FIfcST S AfiBIVAL
(S)
0.0090.0160.0220.0260.0330.0380.0450.0530.0600.0650.0710.075
CCBfi S TIME
IS)
0.0070.0150.0210.0250.0320.0380.0450.0530.0600.0650.0710.075
AYE VEL S HAVE(M/S)
362340355394335399392380377386389391
DEPTH
IB)
2 c . ->5.07.510.012.515.017.520.022.525.027.529.2
FIRST S PEAK(S)
0.0140.0220.0270.0350.0420.0470.0540.0620.0680.0740.0800.084
CORE S PEAK
(S)
0.0110.0200.0260.0340.0410.0460.0530.0620.0660.0740.0600.084
P TlfiE
IS)
0.0090.0110.0130.0160.0190.0230.0300.0340.0370.0400.0430.046
CORE P IIHE
CS)
C.C070.0100.013C.0160.0190.0230.030O.C340.037C.0400.0430.046
AYE YEL P HAVE{fl/S)
355489597637666657587591610626641636
90
Table 8
TBA?EL-TIF!ES AND AVERAGE VELOCITIES
SITE NO. 35 SIERRA LINDA SCHOOLPLANK DIST= 2.0 PIATE D1ST* 2.0
DAIE LOGGED 11-30-79 AVE GHIGIN CORfe= O.OOU
DEPTH
t«)
2.55.01.510.012.515.017.520.022.525.027.528.6
ORIGINCOfiR(S)
O.OOUo.oouo.oouo.oouo.oouo.oou0. OOUo.oouo.oouo.oouo.oouo.oou
JFIfcST SARRIVAL
(S)
0.0150.0260.036O.OU50.0530.0610.0680.0760.0850.0950.1030.104
CCUfiS 1IHE
(S)
0.0120.02U0.035O.OUU0.0520.0600.0680.0760.0650.0950.1030.108
AVE VELS HAVE<3/S)
21320721522623824825926U265263267265
DEPTH
(«)
2.55.07.5
10.012.515.017.520.022.525.027.528.6
PIRST SPEAK
(S)
0.0220.031O.OU10.0500.0570.0670.0730.0810.0900.1000.1080.113
CORRS PEAK
(S)
0.0170.029O.OUO0.0490.0560.0660.0730.0810.0900.1000.1080.1 1J
p imt
(S)
0.0090.012O.C170.0250.0300.0330.036O.U370.0390.0420.044O.Q4b
COfifiP IIRE
(S)
0.0070.0110.0160.0250.0300.0330.036O.C370.0390.042O.OUUO.OU5
AVE VELE HAVE
(H/S)
3554U8456407421458489543579597626637
91
Table 9
TRAVEL-TIRES AND AYfBAGE ?£LOC1TJES
SITE NO. 36 SAS HIGUEL SCHOOIPL AUK DIST= 2.0 PLATE DIST= 2.0
EA1E LOGGED 11-29-79 AVE CBIGIN COBB= 0.006
DEPTH
(«)
2.55.07.5
10.012.515.017.520.022.525.027.530.0
OBIGINCOBB(S)
0.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.006
FlfcST SABrilVAL
(S)
0.0180.0290.0400.0530.0640.0760.0860.0970.1070.1190. 1300.139
CCfiBs uni
IS)
0.0140.0270.0390.0520.0630.0750.0850.0970.1070.1190.1300.139
AVE VELS HAVE
(M/S)
177185194192197199204207211210212210
DEPTH
(fl)
2.55.07.5
10.012.515.017.520.022.525.027.530.0
FIBST SPEAK
(S)
0.0260.035O.OU80.0610.0710.0820.0940.1050.1150.1270.1380.147
COBBS PEAK
(S)
0.0200.0320.046C.0600.0700.0810.0930. 1040.1150.1270.1360.147
P TIBE
(S)
0.0110.0110.0120.0140.0150.0170.0190.0200.0220.0230.0250.027
CCfiBP USE
(S)
0.0090.0100.0120.0140.0150.017C.C19C.0200.0220.0230.0250.027
AVE VELP HAVE
(H/S)
291489646728843890927
10001030109011001110
92
Table 10
TRATEL-TIHES AVD AYIBAGE VELOCITIES
SITE WO. 37 AITA VIST! PABKPLA1IK DIST= 2.0 PLATE DIST= 2,0
DATE LOGGED 11-28-79 AVE ORIGIN C08B= O.OOU
DEPTH
(H)
2,55.07.510,012.515,017.520,022.525.027.529.9
ORIGINCCBB(S)
0.0040.0040.004o.oou0.004O.OOUo.oouo.oouo.oouo.oouo.oouo.oou
flBST SA&UIVAL
(S)
0.0110.0210.0260.03J0.0390.0450.0320.0590.0660.0720.0750.081
CCBBS 11HE
(S)
0.0090.0190.0250.032O.C39O.OU50.0520.0590.0660.0720.0750.081
AVE VtLS WAVEIH/S)
291256298309J2U3363383403U23U3367369
DEPTH
(H)
2.55.07.5
10.012.515,017.520.022.525.027.529.9
FIRST SPEAK
(S)
0.0170.0270.0320.039O.OU60.0520.0570.06U0.0720.0780.0810.087
CORKS PEAK
(S)
0.0130.0250.0310.036O.OU50.0520.0570. 06U0.0720.0780.0810.087
P 11 HE
IS)
0.0060.01J0.0170.0210.0240.02*0.0320.0350.0380.0400.0470.050
CCBBP HfiE
IS)
0.0060.0120.0160.0210.0240.028O.C320.0350.038 .0400.0470.050
AVE VELP HAVE
IH/S)
400414456485527540550574594626586599
93
Table 11
TRAVEL-TIRES AND AVEBAGE VELOCITIES
SITR NO. 38 SIAL BEACH WEAPONS STA tAIE LOGGED 11-20-79PLANK DIST= 2.0 PLATE DIST= 2.0 AVE CBIGIN COfifi- 0.005
DEPTH
(H)
2.55.07.510.012.515.017.520.022.525.026.7
ORIGINCCBR(S)
0.0050.0050.0060.0050.0050.0050.0060.0050.0050.0050.005
FiHSl SAfcfilVAL
IS)
0.0230.0330.0460.0560.0660.0750.0630.0910. 1000. 1Gb0.112
CCB6S TIME
(S)
0.0180.0300.0440.055O.C650.0740.0620.0900.0990.1050.112
AVE VELS IAVE(tt/S)
1401641691*2192202212221226237239
DEPTH
t«)
2.55.07.5
10.012.515.017.520.022.525.026.7
FIRST SPEAK(S)
0.0280.0390.0530.0620.0720.0810.0890.0970.1070.1130.119
CORBS PEAK
(S)
0.0220.0360.0510.0610.0710.0300.0880.0960. 1060.1120.116
P TIHE
(S)
0.0090.0110.0130.0190.0200.0220.0240.0250.0260.0290.029
COBBP IIBE
(S)
0.0070.0100.0130.0190.0200.0220.0240.0250.0280.0290.029
AVE VELP HAVE(H/S)
355489597536632667733803806864923
94
Table 12
TRAVEL-TIHES AHD AVEBA6E VELOCITIES
SITE HO. 39 BIDGELINE iATEB TAHK(KYi) CATE LOGGED 11-19-79 PLANK DIST= 2*0 PLATE D1ST= 2.0 AVE ORIGIN CORB= 0.013
DEPTH
t«)
2.55.07.510.012.515.017.520.022.525.027.8
OBIGIHCOBP(S)
0.0130.0130.0130.0130.0130.0130.0130.0130,0130.0130.014
flfcST SABBIVAL
<s>
O.OOb0.0170.0240.0310.03d0.0450.0520.0580.0630.0680.075
CCBBS 1IKE
(S)
0.0050.0160.0230.0300.0370.0450.0520.0580.0630.0660.075
AYE VELS WAV!(H/S)
541318324329333336339347359369372
DEPTH
CH)
2.55.07.510.012.515.017.520.022.525.027.8
FIHST SPEAK(S)
0.0130.0260.0320.0400.0460.0530.0600.0670.0710.0760.083
COBPS PEAK
(S)
C. 0100.0240.0310.0390.0450.0520.0600.0670.0"MC. 0760.083
P llfl£
(S)
0.0110.0140.0180.0230.0270.0300.032O.Q360.0380.0400.043
CCKEP IIME
(S)
0.0090.0130.017C.0230.0270.0300.0320.0360.0380.0400.043
AV£ VELP HAVEIH/S)
291384431443468504550558594626648
95
Table 13
TRAVEL-HUES AND AVERAGE VELOCITIES
SITE SO. «0 DIRBONC BAR|"»K BIST- 2.0 rim DIST= 2.
DEPTH
f M\ \ n '
2.55.0 7.5
10.0 12.5 15.0 20.2
OBIGIN CORK(S)
0.007 0.007 0.007 0.007 0.007 0.007 0.007
FlBSl SABBIVAL
(S)
0.011 0.019 0.02B 0.031 0.035 0.041 0.050
DATE LOGGED "'^'l 0 AVI ORIGIN COBB= 0.007
CCEB S TIKE
(S)
O.C09 0.018 0.027 0.030 0.035 0.041 0.050
AV£ VEL S UAVE
l»/S)
291 283 277 328 3t>1 369 405
DEPTH
(«)
2.5 5.0 7.5
10.0 12.5 15.0 70.2
FIRST S PEAK
(S)
0.018 0.026 0.035 0.038 O.OU1 0.0<*7 0.056
CORK S PEAK
(S)
C.01U 0.02U 0.034 0.037o.ouoO.OU7 0.056
P HttE
(S)
0.010 0.013 U.OIb 0.017 0.021 0.024 0.027
CCBB P 11WE
(S)
0.008 0.012o.oiu0.017 C.021 0.024 0.027
AVE VtL P WAVE
(tt/S)
320 414 517 599 602 630 7b1
Table 14
TRAVEL-TIMES AND AVERAGE VELOCITIES
SITE HO. 41 SKY TERRACE PLANK DIST* 2.0 PLATE D1ST
DEPTH
(H)
2.55.0 7.5
10.0 12.5 15.0 17.5 20.0 22.5 25.0 26.8
DEPTH
(H)
2.5 5.0 7.5
10.0 12.5 15.0 17.5 20.0 22.5 25.0 26.8
ORIGINCORK (S)
0.005 0.006 0.005 0.006 0.005 0.005 0.006 0.005 0.005 0.005 0.005
FIRST S PEAK
CS)
0.014 0.017 0.022 0.027 0.033 0.035 0.039 0.042 0.045 0.047 0.048
fl&ST SARRIVAL
(S)
0.009 0.012 0.016 0.020 0.025 0.030 0.03J 0.03b 0.038 0.040 0.041
CORR P II flE S PEAK
CS) (S)
0.011 0.008 0.016 0.010 0.021 0.013 0.026 0.015 0.032 0.016 0.034 0.020 0.038 0.022 0.042 0.023 0.045 0.024 0.047 0.025 0.048 0.026
CCRRS IIBE
(S)
0.007 0.011 0.015 0.019 0.024 O.C29 0.033 0.035 0.038 0.040 0.041
CCRR P HUE
(S)
0.006 0.009 O.C13 0.015 0.018 C.020 0.022 0.023 0.024 0.025 O.C26
CA1E LOGGED 11-17-79 2.0 AVJ ORIGIN CORR= 0.005
AVE VEL S HAVE
(M/S)
366459493516511509538578598631659
AVE VEL P HAVE
400536597679703756800873941
10001030
97
Table 15
TR»?EL-TMES ABD HVIRAGE ViLOCIIlES
SITB HO. « 2 SILBAB HORSEB* K.MK DIST= 2.0 OIST=
DEPTH
W
2.5 5.0 7.5
10.0 12.5 15.0 17.5 20.0 22.5 25.0 27.5 29.3
DEPTH
(H)
2.5 5.0 7.5
10.0 12.5 15.0 17.5 20.0 22.5 25.0 27.5 29.3
ORIGIN fjasj sCO *B AfiBIVAL< s ) (S)
0.005 o.012 0.005 0.017 0-006 0.024 0-005 o.030 0-005 0.036 0.006 0.041 0.006 o.047 0-006 0.052 0-006 0.056 0.006 o.060 0-006 0.065 0.004 o OhQ»» UO y
FIRST S CORR p IIRL PEAK S PEAK L
IS) rs) (S)!} {}" S- 013 °- 01 «0.023 0.021 0.014o'o°L9 °'° 28 °-016 0.036 0.035 0.022 0-041 0. 0(K; 2.0250*0^ 2' OU5 °-^8 0.052 0.051 O.OJ2 0-057 0.056 o 035 0-061 0.061 0.036o'til S- 066 **o'nif 2' 072 °-°^ 0-076 0.076 0.045
CCfcftS HUE
(S)
0.009 0.015 0.023 0.029 0.035 0.040 0.0*16 0.051 0.055 0.060 0.0650.069
COBB P TIWE
(S)
0.008 O.C13 0.017 0.022 0.025 0.026 O.C32 O.C35 0.036 0.040 0.043 0.045
CATE LOGGED 11-17-79 2.0 AVI ORIGIN COfifi- 0.005
AVE VEL S WAVE
2783263303453563733763*0407414420422
AVE VEL P WAVE
320364431463506540550574594626641652
98
Table 16
TBAVEL-TIHES AHD AVERAGE YfcLOCIlIES
SITE NO. 43 SYLSAR PARK BATE LOGGED 11-16-79 PLAHK DIST= 2.0 PLATE DIST= 2.0 AVI CBIGIN CO&B= 0.003
AYE VEL5 HAVE
(M/S)
20J 209 229 302 318 271 327 330 359 354 359 392
AVE VEL P iAVE
DEPTH
(«)
2.55.07.5
10.012.515.017.520.022.525.027.528.5
DEPTH
M)
2.55.07.5
10.012.515.017.520.022.525.027.528.5
OBIGINCOBR(S)
0.0030.0030.0030.0030.0040.0030.0030.0030.0030.0030.0040.004
FIRST SPEAK
(S)
0.0190.0330.0400.0400.0460.0630.0590.0670.0690.0^70.0830.080
FIflST SAfiiUVAL
(S)
0.0160.0260.0340.0340.0400.0560.0540.0610.0630.0710.0770.073
CORB P TIrtLS PEAK
(S) (S)
0.015 o.ooa0.030 0.0100.038 0.0120.039 U.01J0.045 0.0150.062 0.0170.058 0.0190.066 0.0200.068 0.02J0.077 0.0240.083 0.0260.080 0.027
COfifiS HUE
(S)
0.0120.0240.0330.0330.0390.0550.0530.0600.0630.0710.0770.073
CCBBP TIHE
(S)
O.OC6O.C090.0120.0130.0150.0170.0190.0200.0230.0240.0260.027
4005366467t*4843890927
1000982104010601060
99
Table 17
TBA7EL-TIHES AHD AVBBAGE VELOCITIES
SITE NO. *4 PLAHK DIST*
HILITCF HOUSE O.V. 2.0 PLATF DIS1= 2.0
EA1E LOGGED 11-16-79 AVI CBIGIN CORB= 0.006
DEPTH
(H)
2.55.07.510.012.515.017.520.022.525.027.529.0
ORIGINCOBRtS)
0.0070.0060.0060.0070.0060.0050.0060.0060.0060.0060.0060.005
FI&ST SAttfilYAL
IS)
0.0090.01b0.0180.0220.0270.0310.0360. 0400.0450.0500.0550.058
CCBFS 1IHE
(S)
0.0070.0150.0170.0220.0270.0310.0360.0400.0450.0500.0550.058
AVE VELS HAVEIH/S)
355336431463468488489502501501501501
DEPTH
(«)
2.55.07.510.012.515.017.520.022.525.027.529.0
PIBST SPEAK(S)
0.0140.0220.0240.0290.0330.0360.0410.0460.0500.0550.0610.063
COHBS PEAK
(S)
0.0110.0200.02JC.0280.0330.0360.0410.0460.0500.0550.0610.063
P 11 HE
{S)
O.OOti0.0110.0150.0170.0190.0210.0220.02J0.0250.0260.0280.028
CCBBP 1IHE
(S)
0.0060.010C.0140.0170.0190.0210.0220.0230.0250.026O.C280.026
AVE VELP HAVE(fl/S)
400489517599666720800873903964984
1040
TOO
Table 18
TRAVEL-TIBES AWD AVEBAGE VELOCITIES
SITE HO. 45 CEDAR HILLS NUfiSEfiY £ATE LOGGED 11-1b-79 PLAiK DIST= 2.0 PLATE DIST= 2.0 AVE CBIGIM COUB = 0.010
AVE VZL S HAVE (H/S)
260
DEPTH
(«)
2.55.07.5
10.012,515.017.520.022.525.027.529.7
DEPTH
(H)
2.55.07.5
10.012.515.017.520.022.525.027.529.7
ORIGINCOP*(S)
0.0100.0090.0090.0090.0100.0100.0090.0100.0100.0090.0100.010
FIRST SPEAK
(S)
0.0190.0260.0260.0320.0440.0500.0560.0610.0660.0730.0800.065
FIfiST SABBIVAL
(S)
0.0110.0220.0220.0280.0370.0430.0490.0540.0600. 067U.0730.07*
COBB P II Hi:S PEAK
(S) (S)
0.015 0.0120.026 O.C160.02t> 0.0180.032 0.0200.044 0.0220.050 0.0230.056 0.0250.061 0.0270.068 0.0260.073 O.C290.080 0.0310.085 0.032
CCRES 1IRE
(S)
O.C090.0210.0220.0280.0370.0430.0490.0540.0600.0670.0730.079
CCfifiP 1IHE
(S)
0.0090.0150.017C. 0200.0220.0230.0250.0270.028C.029O.C310.032
346 356 336 34b 356 369 373 372 375 374
AVE VEL P HAVE (M/S)
266336431509575657704744806664869930
101
Table 19
TBAVEL-TIflES AND AVEBAGE VELOCITIES
SITE MO. 46 PLANK DIST =
CAI STATE NOiTHhlDGi, 2.0 PLATE DI2T> 2. Q
DEPTH
<H)
2.55.07.5
10.012.515.017.520.022.525.027.529.1
DEPTH
(H)
2.55.07.5
10.012.515.017.520.022.525.027.529.1
ORIGINCOBB(S)
0.0060.0070.0070. 0060.0070.0060.0070.0060.0060.0060.0060.006
FIBST SPEAK
IS)
0.0160.0230.0290.0360.0440.0490.0580.0650.0890.0870.0870.091
FIES1 SAfalxIVAL
(S)
0.0100.0160.0230.0300.03B0.0440.0520. 0590.0810.0800.0810.085
CORB P lift*!S PEAK
(S) (S)
0.012 0.0120.021 0.0130.028 0.0190.035 0.0230.043 6.0280.046 0.0330.057 0.0370.064 0.0400.088 0.042C. 086 0.0430.086 0.0440.090 0.052
CCBfiS 1IF1E
(S)
0.0060.0150.0220.0290.0370.0430.0510.0560.080O.C790.0600.084
COBBP TIRE
CS)
0.0090.0120.0180.0230.0280.033O.C370.0400.0420.0430.0440.052
CAIE LOGGED 11-15-79 AVI CBIGIN COfiB= 0.006
AVE VEL S WAVE (H/S)
331
342343336346340342260314341344
A?E VilL P HAVE (H/S)
266 414 408 443 452 458 476 502 537 5d3 626 560
102
Tab
le 2
0
INT
ER
VA
L
VE
LO
CIT
IES
A
ND
E
LA
ST
IC
MO
DU
LI
SIT
E
NO
. 28
C
AB
AR
ILL
O
STA
TE
H
OSP
II
FIR
ST
5
Afi
filV
AL
DE
PTH
IH
T
NO
IN
CP
T
VEL
U
NC
INT
(f
l)
NB
AS
(S)
(H/S
) Jr
t/S
)
7.5-22.5
7 0.013
J48
( 340, J57)
25.0-29.2
3 0.042
597
( 581, 613)
FIR
ST
S
INC
PT
V
EL
(S)
(fl/
S)
FFA
K
UN
C IN
T
(B/S
)
0.0
21
348
( 340,
35
6)
0.0
50
596
( 581,
61
2)
o CO
FIR
ST
P
AR
feiV
AL
DE
PTH
I
IT
HO
IN
CP
T
VEL
U
NC
INT
H
EAS
(S)
(H/S
) (N
/SJ
6 0
.00
6
979
( *32,
1030)
3 0.0
23
10
50
(
95
1,1
18
0)
7.5
-20.0
25.0
-29.2
S?EL
(H/S)
348
597
DEPTH INT
(H)
7.5-22.5
25.0-29.2
PVEL
(H/S
)979
1050
DEPTH INT
IM)
7.5-20.0
25.Q-29.2
DENSITY
DEPTH
(H)
(G/CC)
15.3
2.06
SHEAR
HOD
(DARS)
2500
BU
LK
NO
D
(BA
RS
) 1
64
00
ECISSCNS
RATIC
0.427
0.264
Tab
le 2
1
INT
ER
VA
L
VE
LO
CIT
IES
A
ND
E
LA
ST
IC
MO
DU
LI
SIT
E
NO
. 29
H
Aft
lNA
D
EL
B
EI
FIRST S
ABK1VAL
DEPTH INT
NO
INCPT
VEL
UMC INT
(H)
RE AS
(S)
(rt/S)
(H/S)
5.0
-10
.0
10.0
-15.0
15.0
-25.0
25.0
-39.7
3 0
.00
63
0.0
20
5 0.0
35
7 0.
0<I9
169
( 1
66
, 1
71
)22
2 (
221,
222)
290
( 287,
294)
342
( 339,
34
5)
FIR
ST
S
FE
JKIN
CP
T
VEL
IH
C
INT
(S)
(H/S
) (P
/S)
0.0
13
0.0
25
0.0
41
0.0
52
17
3
( 172,
174)
22
1
( 2
2C
, 2
22
)290
( 2
87
, 2
93
)3
29
(
32
5,
332)
FIR
ST
P
AR
RIV
AL
o 45*
DE
PTH
IN
T
NO
IN
CP
T(H
) H
EA
S
(S)
2.5
-39.7
16
0.0
09
2.5
-39
.7
16
0.0
09
2.5
-39
.7
16
0.0
09
2.5
-39
.7
16
0.0
09
V£L
U
NC
IN
T
(H/S
) (H
/S)
17
20
(1
70
0,1
74
0)
17
20
(1
70
0,1
74
0)
1720
(17
00
,17
40
) 1720
(17
00
,17
40
)
SV
ELCH
/S)
169
222
290
3U2
DE
PTH
IN
T
(H)
5.0
-10
.010.0
-15.0
15.0
-25.0
25
.0-3
9.7
PV
EL(H
/S)
1720
17
20
1720
17
20
DE
PTH
IN
T
(M)
2.5
-39.7
2.5
-39.7
2.5
-39.7
2.5
-39.7
CE
NSI
TY
D
EPT
H
(«)
(G/C
C)
9.2
1.8
5
24
.9
1.9
8
SHE
Ah
HOD
(BA
RS)
5
33
16
80
BU
LKH
OD
(BA
PS
) 54100
56400
FC
ISS
CK
SR
AT
IC
0.4
95
0.4
92
0.4
P5
0.4
79
Tab
le 2
2
TN
TE
RV
Al
VE
LO
CIT
IES
A
ND
E
LA
ST
IC
MO
DU
LI
SIT
E
NO
. 3
0
iES
TH
INS
TE
RF
IRS
T
S A
RR
IVA
LD
EPT
H
IRT
N
O
INC
PT
V
fcL
UN
C IB
lT
HEA
S (S
) (H
/S)
(H/S
)
3 -.
001
4 0.0
05
4 0.0
22
4 0.0
34
2.5
- 7
.57
.5-1
5.0
15.0
-22.5
22.5
-29.5
176
( 173,
180)
205
( 2
01
, 209)
266
( 2
61
, ^7
1)
311
( 3
01
, 322)
FIB
ST
S
FFfl
KIN
CP
T
VEL
CK
C IN
T(S
) (B
/S)
(P/S
)
0.0
04
17
0 (
155,
132)
0.0
11
20
4 (
20
0,
20
9)
0.0
24
250
( 243,
256)
0.0
48
33
6
( 3
16
, 36
C)
o
01
FIR
ST
P
Afi
BIV
AL
DEP
TH
INT
NO
IN
CPT
H
EAS
(S)
3 0.0
06
10
10
2.5
- 7
.5
7.5
-29.5
7.5
-29.5
0.0
13
0.0
13
VEL
U
NC
INT
(f
l/S
) (f
l/S
)609
( 58
2, 63
8)
1440 (138J,1520)
1440
(1380,1520)
7.5-29.5
10
0.013
1440 (1380,1520)
STEL
(H/S
) 176
205
266
311
DEPTH INT
(B)
2.5- 7.5
7.5-15.0
15.0-22.5
22.5-29.5
PTEL
fH/S)
609
1440
1440
1440
D£PTH INT
(H)
2.5- 7.5
7.5-29.5
7.5-29.5
7.5-29.5
CENSITI
DEP1H
(K)
(G/CC)
9.1
1.9
5
24.5
2.0
8
SHEA
RH
OD
(BA
RS)
82
5
20
20
BU
LKM
OD(B
AP
S)
39500
40
60
0
EC
ISS
CK
SE
AT
IC
0.4
54
0.4
90
0.4
92
0.4
76
Tab
le 2
3
INT
ER
VA
L
VE
LO
CIT
IES
A
ND
E
LA
ST
IC
BO
DU
LI
SIT
E
MO
. 31
B
0RB
AH
K
FIB
E
STA
TIO
NF
IRS
T
S A
RR
IVA
LD
EPT
H
INT
NO
IN
CP
T
VEL
UM
C IM
T
(fl)
H
EA
S (S
) (H
/S)
(B/S
)
2.5
-12.5
5
0.0
01
4
05
(
394,
41
6)
12.5
-24.0
6
0.0
04
452
( 4
46
, 457)
FIR
ST
S
INC
PT
V
FL
IS)
(M/S
)
0.0
06
0.0
10
PFA
K(J
NC
39
1451
( 361,
402)
456)
FIR
ST
P
AH
KIV
AL
D
EPT
H
IMT
NO
IM
CP
T
VEL
U
NC
IN
T(N
) H
EAS
(S)
fH/S
) (B
/SJ
2.5
-10.0
4
0.0
03
594
( 590,
598)
10.0
-24.0
7
0.0
09
9
40
(
907,
97
6)
SVEL
(H/S
)405
452
DEPTH INT
(B)
2.5-12.5
12.5-24.0
P?EL
(H/S)
594
940
DEPTH INT
(H)
2.5-10.0
10.Q-24.0
TENSITY
DEFTH
(B)
(G/CC)
20.0
2.16
SHEAR
HOD
(BAKS)
4420
BULK
HOD
(BARS)
13200
FCISSCNS
FATIC
0.065
0.350
Table
24
INTERVAL VELOCITIES AND ELASTIC BODULI
SITE NO.
32
SHELLHAKER ISLAND
FIRST S ARRIVAL
DEPTH I NT
NO
INCPT
VEL
UNC INT
HEAS
(S)
(fl/S)
(fl/S)
FIRST S
INCPT
VKL
(S)
(H/S)
2.5-20,0
20.0-29,0
8 -,000
5 0,059
207
( 205, 210)
55**
( 54J, b66)
0.006
0.059
209
470
TFAK
UliC
(K/S
)
( 207, 212)
( 443, 5C
1)
FIHST P ARRIVAL
DEPTH I NT
NO
INCPT
VEL
UNC INT
(N)
HEAS
(S)
(B/S
) (fl/S)
5.0-29,0
11
0,009
1650 (1610,1690)
5.0-29.0
11
0.009
1650 (1610,1690)
S DEPTH INT
P DEPTH I NT
VEL
VEL
CVS)
(H)
(H/S)
(fl)
20?
2.5-20.0
1650
5.Q-29.0
55U
20.0-29.0
1650
5.0-29.0
DENSITY
DEPTH
(H)
(G/CC)
16.7
1.97
24.5
2.15
SHEAR
HOD
(BAKS)
852
6610
BULK
BOD
(BAR
S)
52UOO
49600
FCISSCHS
PATIC
0.492
0.436
Table
25
INTERVAL VELOCITIES AMD ELASTIC MODULI
SITE NO* 33
CYPRESS COLLEGE
FIRST S
ARRIVAL
DEPTH IHT
MO
INCPT
VEL
UNC INT
(PI)
HEAS
(S)
(H/S
) (H/S)
2.5-10.0
10.0-23.8
0.003
218
( 217, 220)
0.011
261
( 259, 263)
FIRST S
FFAK
INCPT
VEL
UFC INT
(S)
(H/S
) (B
/S)
0.008
211
( 20
9. 213)
0.017
259
( 256, 262)
o CO
FIRST P
ARRIVAL
DEPTH INT
HO
IHCPT
VEL
UHC INT
(«)
HEAS
(S)
(H/S)
(M/S
) 2.5-23.8
10
0.009
1550 (1510,1590)
2.5-23.8
10
0.009
1550 (1510,1590)
S VEL
218
261
DIPTH INT
W2. 5-10.0
10.0-23.8
PVEL
(M/S)
1550
1550
DEPTH INT
(H)
2.5-23.8
2.5-23.8
DENSITY
DEPTH
(B)
(G/C
C)
20.0
2.00
SHEAR
NOD
(BAR
S)
1370
BULK
HOD
(BARS)
46100
fCISSCNS
FATIC
O.U90
O.U85
Tab
le 2
6
IHTftRVAt
VELOCITIES AN
D ELASTIC MODULI
SITE HO.
34
VEHTURA PISTOL RANGE
FIRST S
ARRIVAL
DEPTH I NT
HO
IHCPT
VEL
UNC IN
T(i)
HEAS
(S)
(H/s
) (n/s)
2.5-20.0
8 0.001
399
( 38
9, 410)
20.0-29.2
5 0.006
42J
( 4U, 43
5)
FIR
ST
S
IMC
PT
V
*L
(S)
(H/S
)O
KC
IN
T
(H/S
)
0.0
05
356
( 3
4fl
, 364)
0.0
13
415
( 4
1U
, 416)
FIRST P
ARRIVAL
DEPTH IHT
HO
IHCPT
VEL
UNC
INT
(H)
REAS
(S)
(B/S)
(H/S)
2.5-15.0
6 0.004
813
( 763, 844)
17.5-29.2
6 0.007
756
( 734, 779)
S DEPTH IHT
VEL
(H/S
) (H)
399
2.5-20.0
423
20.0-29.2
PV
EL(H
/S)
813
756
DEP
TH
INT
2.5
-15.0
17.5
-29.2
DE
NSI
TY
D
EPT
H(B
) (G
/CC
) 12.2
2
.06
2
3.2
2
.10
SH
EA
R
NOD
(BA
RS
) 3290
3770
BU
LK
HO
D
(BA
RS
) 9230
69
90
FC
ISS
ON
S
BA
TIC
0.341
0.271
Ta
ble
27
IRT
ER
VA
l V
EL
OC
ITIE
S AN
D E
LA
STIC
M
OD
ULI
SIT
E
WO
. 35
SI
ER
RA
L
IHD
A
SCH
OO
LF
IRS
T
S A
RR
IVA
LD
EPT
H
IVf
90
II
ICP
T
VEL
OM
C IH
T
(H)
HEA
S (S
) (f
l/S
) (H
/S)
2.5
- 7.5
3
0.0
00
216
( 2
07
, 22
6)7
.5-2
0.0
6
0.0
11
J09
( J03,
J1
5)
20.0
-28.6
5
0.0
02
2
70
{
26
1,
276)
FIR
ST
S
IHC
PT
V
EL
(S)
(fl/
S)
FEA
R
OR
C
0.0
06
0.0
16
0.0
07
22
230
627
0
IWT
( 218,
227)
( 297,
315)
( 264,
275)
FIR
ST
P
AR
RIV
AL
DE
PTH
IH
TI"
)2.5
- 7.5
10.0
-17.5
20.0
-28.6
HO
II
ICP
T
RE
AS
(S)
3 0.0
02
a 0.
010
5 0
.01
8
VEL
OM
C IB
T
CB
/S)
<H/S
) 53
2 (
U96
, 573)
678
( 6
19
, 750)
105U
(1
01
0,1
09
0)
SVEL
H/S)
216
309
270
DEPTH IHT
(H)
2.5- 7.5
7.5-20.0
20.0-28.6
PVE
L(H/S
)532
673
1050
DEPTH IMT
(H)
2.5- 7.
510
. 0-17. 5
20.0-28.6
DE
HS
ITf
DE
PT
H(H
) (G
/CC
)
9.5
2
.0U
SHE
AR
HO
D(B
AR
S)
19
60
BU
LK
MOD
(BA
PS
)
6790
ICIS
SC
NS
Fft
TT
C
O.U
01
0,3
69
O.U
6U
Tabl
e 28
INTERVAL VELOCITIES AND ELASTIC MODULI
SIT* NO
. 36
SAM HIGUEL SCHOOL
FIRST 5
ARRIVAL
DEPTH IMT
NO
INCPT
VEL
UHC INT
(H)
HEAS
(S)
(ft/S)
2.5-10.0
12.5-30.0
0.002
0.010
199
( 19
6, 20
2)
230
( 22
3,
FIRST S
PEAK
INCPT
V*L
CKC INT
(n/s)
0,007
0.015
13fl
(
185, 19
2)
226
( 223, 22
9)
FIR
ST
P
AR
RIV
AL
D
EPT
H
IHT
M
O IN
CP
T
V£L
U
tiC
INT
(H)
NE
AS
(S)
(H/S
) (H
/S)
2.5
-10.0
U
0.0
07
11
490
(1400,1
b90)
2.5
-30.0
12
0.0
07
1520
(1
49
0,
SVEL
(H/S
)19
9230
DEPTH INT
(«)
2.5-10.0
12.5-30.0
PVE
L(n
/s)
1U90
1520
DEPTH IHT
(«>
2.5-10.0
2.5-30.0
CENSITX
DEPTH
(H)
(G/CC)
29.5
1.95
SHEAR
HOD
(BARS)
10UO
BULK
HOD
(BAR
S)
U3UOO
rcissrus
RATIC
O.U88
Tab
le 2
9
INT
ER
VA
L
VE
LO
CIT
IES
A
ND
E
LA
ST
IC
rtO
DJL
I
SIT
E
NO
. 37
ALT
A
VIS
TA
P
AhK
FIR
ST
3
AR
H1V
AL
DE
PTH
IN
T
NO
IN
CP
T
VK
L U
NC
iN
T
NB
AS
(S)
(H/S
) (f
l/S
)
7.5
-25.0
8
0.0
05
374
( 37C
, J77)
Flh
ST
S
PEA
KIN
CP
T
VEL
O
KC
INT
(S)
(«/S
) (B
/S)
0.012
378
( 371, 385)
ro
PIBST P
ABBIVAL
DEPTH INT
NO
INCPT
VKL
UNC INT
(1)
HEAS
(S)
(fl/
S)
(fl/
5)
7.5-29.9
10
0.006
6d6
< 667, 707)
SVEL
(H/S)
37U
DEPTH IIT
(H)
7,5-25.0
P VEL
DEPTH INT
686
7.5-29.9
CENSITI
DEPTH
(M)
(G/C
C)
20.0
1.97
SHEAB
HOD
(BARS)
2760
BULK
HOD
(BAPS)
5610
FCISSCNS
RA1IC
0.269
Tabl
e 30
INT
ER
VA
L
VE
LO
CIT
IBS
A
ND
E
LA
ST
IC
MO
DU
LI
SIT
E
NO
. 38
SEA
L
BEA
CH
W
EA
PON
S SX
AF
IRS
T
S A
RR
IVA
LD
EPT
H
IHT
N
O
INC
PT
V
6L
UN
C
INT
(f
l)
HE
AS
(S)
(0/5
)
2.5
- 7
.5
10.0
-22.5
22.5
-26.7
0.0
04
0.0
21
0.0
35
( 1b
4,
19
J)
284
( 27d
, 290)
35
1
( 317,
J94)
FIH
ST
S
TEA
KIN
CP
T
VEL
L'
NC
INT
(S)
(H/S
) (f
l/S
)
0.0
07
170
( 168,
172)
0.0
26
279
( 273,
26
5)
0.0
42
351
( 317,
394)
(A)
FIRST P
AfiBIVAL
DEPTH INT
NO
TNCPT
(fl)
NBAS
(S)
2.5- 7.5
3 0.004
10.0-26.7
8 0.012
10.0-26.7
8 0.012
VtL
UNC INT
(M/S
) (fl/S)
S03
( 831, 990)
1490 (1410,1570)
1490 (1410,1570)
S DEPTH INT
P DEPTH INT
TEL
VEL
(«/S)
(«)
(B/S)
(fl)
189
2.5- 7.5
903
2.5- 7.5
284
10.0-22.5
1490
10.0-26.7
351
22.5-26.7
1490
10.0-26.7
DENSITY
DEPTH
(H)
(G/CC)
20.0
1.98
SHEA
fiHOD
(tiABS)
1600
BULK
ROD
(BARS)
41500
ICISSCNS
BATIC
0.477
0.4P1
0.470
Tab
le
31
INT
ER
VA
L
VE
LO
CIT
IES
AN
D £L
A5T
1C
flO
DU
LI
SIT
E
NO
. 39
B
IDG
EL
INE
to
ATE
K
TAN
K (
bVW
PIH
ST
S
Afc
iiiV
Al.
DE
PTH
IN
T
NO
INC
PT
V
fcL
UMC
ibIT
(H
) N
BA
S (S
)
5.0
-20
.0
20.0
-27.8
0.0
02
0.0
11
J55
J59)
478)
FIB
ST
S
INC
PT
V
EL
0.0
10
0.0
25
f AK
U
KC
INT
J53
433
( 4
52
,35
7)
520)
FIU
ST
P
DE
PTH
IN
T
NO
IN
CP
T
VK
L(N
) N
BA
S
(S)
2.5
-12.5
5
0.0
04
12
.5-2
7.8
7
0.0
14
UN
C
HIT
547
( 537,
b57)
( 9
11
,
SVEL
(H/S
) 355
355
459
DEPTH INT
(«)
5.0-20,0
5.0-20.0
20.0-27.8
PVE
L(H
/S)
547
547
945
DLVlti INT
(ft)
^.5-12.5
2.5-12.5
U.5-27.tt
CE
NSI
TV
D
EPT
H
(«)
(G/C
C)
9.2
1
.99
1
6.7
1.9
7
24.7
2
.19
SH
JsA
BM
OD
(BA
BS
) 2510
24
90
4620
BO
LKN
OD
(BA
BS
) 2
60
02
58
013400
FC
ISS
CN
SB
AT
IC
0.
13
50
. 135
0.3
46
Table
32
INTEBVAL VELOCITIES AND ELASTIC MODULI
SITE NO. 40
DIAMONC BAfi
FIRST
i> AKK1VAL
DEPTH INT
NO
INCPT
VkL
UfcC If
cT
(1)
NBAS
(S)
(M/S)
2.5- 7.5
10.0-20.2
3 -.001
4 0.011
270
( 267,
519
I 49
7, 543)
[EAK UhC
INT
FIBST S
INCPT
VRL
(S)
(M/S)
0.0
04
253
( 250,
256)
0.0
18
53
8
( 5
08
, 572)
FIbST P
A*ti
lVAL
DEPTH INT
NO
INCPT
VKL
UNC IHT
(1)
HEAS
(S)
(H/S)
(rt/
5)
2.5-15.0
6 0.005
609
( 77J, 849)
2.5-15.0
6 0.005
809
( 773, d49)
S VBL
(M/S
)270
519
DEPTH
INT
2.5- 7.5
10.0-20.2
P VEL
DEPTH INT
609
809
2.5-15.0
2.5-15.0
DENSITY
DEPTH
(B)
(G/C
C)
7.4
2.02
16.7
2.06
SHEAB
NOD
(BAKS)
1480
5560
EULK
NOD
(BARS)
11300
6090
tCISSChS
GATIC
0.4
37
0.1
50
Tab
le 3
3
INT
EB
VA
l V
EL
OC
ITIE
S
AN
D
EL
AS
TIC
M
OD
ULI
SIT
E
NO
. 41
SK
Y
TE
BR
AC
tF
IRS
T
X A
fifi
lVA
LD
EPT
H
INT
NO
IN
CP
T
VtiL
U
NC
iNT
(1
) B
EAS
(S)
|fl/
S)
2.5
-15.0
1
7.5
-26.8
6 0.0
02
5 0
.01
7553
i 5
40
, i>
67
) 1
11
0
(10
40
,11
80
)
PEAK
INT
FIRST S
INCPT
VRL
(S)
(M/S)
0.0
06
502
( 478,
52S
) 0.0
22
1010
( 933,1
090)
FIRST P
ABJUVAL
DEPTH INT
NO
INCPT
V£L
UNC INT
(*)
BEAS
(S)
(«/S
) (d/^>)
2.5-15.0
6 0.004
916
( «85, 949)
17.5-26.8
5 0.014
2JJO
SV
El
(B/S
)5
53
1110
DE
PTH
IN
T
(B)
2.5
-15.0
17
.5-2
6.8
PV
EL
(B/S
)916
2330
DE
PTH
IN
I
fflj
2.5
-15
.017*5-2
6.8
DENSITY
DEPTH
(fl)
(G/CC)
9.1
2.03
SHE'
Afi
flOD
(B
AR
S)6230
BU
LK
HO
D
(BA
RS)
8740
ICISSONS
RATIC
0.2
12
0.3
54
Tab
le
34
TH
TPR
VA
I V
EL
OC
ITIE
S
AND
EL
AS
TIC
M
OD
ULI
SIT
E
NO
. 42
SY
LHA
R
NU
RSE
**F
IRS
T
3 A
RH
iVA
LD
EPT
H
INT
M
O T
NC
PT
VEL
U
NC
INT
(«
) H
EAS
(S)
(fl/
3)
(fl/
S)
2.5
-12.5
5
0.0
02
380
( 3
73
, 387)
12.5
-29.3
8
0.0
10
497
( 4«9,
50
5)
FI8
ST
S
FFA
KIN
CP
T
VEL
U
KC
TNT
(S)
(M/S
) (H
/S)
0.0
07
366
( 3
52
, 38
2)
0.0
13
465
( 460,
470)
DEPTH INT
NO
(N)
HEAS
2.5-10.0
412,5-29.3
8
FIRST e
AKRIVAL
INCPT
VEL
UUC INT
(S)
(rt/
b)
(N/3
) 0.0
04
547
( 5
2d
, b67)
0.0
10
d3ti
(
81
3,
d65)
SVEL
n/s)
380
497
DEPT
H INT
(N)
2.5-12.5
12.5-29.3
PVE
L(M
/S)
547
838
0£PTH INT
(d)
2.5-10.0
12.6-29.3
DENSITY
DEPTH
(K)
(G/CC)
9.1
2.10
SHKAR
NOD
(BAR
S)3040
BU
LK
riOD
(B
AP
S)
2240
ICIS
SC
NS
fi
AT
IC
0.0
33
0.2
28
Tab
le 3
5
INT
ER
VA
L
VE
LO
Cll
IES
A
ND
^
SHE NO
. 43
SYLHAB PARK
FldST ^
DEPTH IhT
NO
INCPT
Val.
MEAS
(S)
JUT
UK
1ST
S IN
LtT
V
BL
IS)
(M/S
)
EEA
K
2.
10
.2
2.
5-
70-2
05-2
7
.5 .0 .5
3 4 3
0,
0.
.
003
005
000
<*i
bJb
J
Jb
u
t <
I -»
I J
^ ?r
f^>
cf
4. C
t
^bti)
Jb
^)
jti?
)
U.O
U4
0
.01
1U
.OU
6
210
36
7355
Ihl
Ml,
2
59
)3
55
, 37
9)3
26
, 36
7)
oo
FIR
ST
*
DE
ET
H
IkT
N
O
INC
ET
V
Li.
(«)
HE
AS
(S)
2.5
- 7
.5
2.5
- 7
.50.0
04
O
.JO
U7.5
-28.5
9
0.0
06
1UT
( d
bt,
1010)
i d
oc,
SVEL
(n/s
)246
363
356
DEPTH I NT
(H)
2.5- 7.5
10.0-20.0
22.5-27.5
PVE
L(B
/S)
934
934
1350
U&PTU I NT
(rt)
2.5- 7.5
2.5- 7.
b7.5-2d.5
DE
NSI
TY
D
EE
1U
(«)
(G/C
C)
10.1
2.02
SU
EA
aH
OD
(BA
RS
)
2660
BU
LK
MO
D(B
AR
S)
14
10
0
KIS
SC
NS
BA
TIC
0.4
63
0.4
11
0.4
63
Tab
le
36
TN
TE
BV
Al
VE
LO
CIT
IES
IN
D
EL
AS
TIC
M
OD
UL
I
SIT
E
NO
. 44
HIL
LT
OP
H
OU
SE
0.V
.F
IRS
T
S A
fifc
lVA
LD
EPT
H
I N
T N
O
INC
PT
V
fcL
UM
C IN
T
(N)
NE
AS
(S)
(tt/
3)
(rt/
S)
7.5-29.0
10
0.003
531
( 526, b36)
FIRST S
FFAK
1NCPT
VEL
UKC INI
(M/S)
(n/s
)
543
( 533, 553)
0.00
9
FIR
ST
P
AH
UIV
AL
D
EPT
H
IKT
N
O
INC
PT
V
EL
UN
C
INT
(N)
NE
AS
(S
) (M
/S)
(H/S
j 10.0
-29.0
9
0.0
11
1
70
0
(16
30
,17
70
)
SVEL
(H/S
) 531
531
DEPT
H IN
T
7.5-29.0
7.5-29.0
PVE
L(B
/S)
1700
1700
DfcP
TH INT
(H)
10.0-29.0
10. 0-
29.
i)
DENSITY
DEPTH
(«)
(G/C
C)
9.1
2.05
20.0
2.17
SHKAfi
MOD
(BARS)
5790
6130
BULK
NOD
(BARS)
51UOO
54400
EC
ISS
Cti
S
BA
TIC
0.4
46
0.4
46
Table
37
INTERVAL VELOCITIES AND ELASTIC MODULI
SITE NO
. 45
CEDAR HILLS NURSEHK
FIRST S
AH&1VAL
DEPTH I NT
MO
INCPT
V£L
UNC INT
(N)
HEAS
(S)
(fl/
S)
(H/S)
5.0-29.7
7.5-29.7
11
0.005
10
0.004
405
( 396, 415)
392
( Jt
ib,
J99)
FlkST S
PEAK
INCPT
VEL
CJNC
INI
(M/S)
(H/S
)
J92
( 379, 406)
378
( 366, 39
1)0.010
0.008
ro
o
FIR
ST
P
AH
BIV
AL
D
EPT
H
IRT
N
O
INC
PT
V
EL
UN
C IN
T(N
) H
EA
S
(S)
(M/S
) (M
/S)
5.0
-12
.5
4 0
.01
0
11
00
{1
06
0,1
13
0)
12
.5-2
9.7
8
0.0
14
16
60
(1
600,1
720)
SVEL
(H/S)
405
392
DEPTH INT
5.0-29.7
7.5-29.7
PVEL
(H/S)
1100
1660
DEPTH INT
(N)
5.0-12.5
12.5-29.7
CENSIT*
DEPTH
(M)
(G/CC)
9.1
1.90
9.1
1.90
SHEAR
MOD
(BARS)
3130
2930
BULK
MOD
(BARS)
18600
48400
FCISSCNS
HATIC
0.420
0.470
Tab
le 3
8
INT
ER
VA
L
VE
LO
CIT
IES
A
ND
SIT
E
NC
. 46
C
AL
S
I A
lt)
FIR
ST
ii
DE
PTH
IK
T
NO
INC
PT
V
hi.
(M)
«EA
S
(S)
ilU
UU
Li
UW
LF
liiS
T
S IN
CP
T
VEL
2.5
-29
.7
5.0
-29
.710
0.0
00
9 0
.00
0J4J
I J4
J
(,
jU5
)0.0
06
U.O
Ub
EEAK
C»C
INT
J41
34U
336,
3U
C, 3U7)
FIRST P
ABBIVAL
DEPTH IKT
NO
INCPT
VEL
UNC 1NT
(d)
NBAS
(S)
(rt/i>)
(«/S
j 2.5-17.5
7 O.OOU
527
( 5U, 5U
2)
20.0-27.5
1 0.029
1ddO (1660,2170)
SV
EL
Ifl/
S)
343
343
DE
PTH
I
NT
(«)
2.5
-29.7
5.0
-29.7
PV
IL(H
/S)
527
1880
DEP
TH
I NT
(M)
2.5
-17.1
*20.Q
-27.5
CENSITX
DEfTH
(fl)
(G/C
C)
20.1
2.00
20.1
2.00
SHEAR
HOD
(BARS)
2110
2080
BULK
NOD
(BARS)
2750
68100
FCISSCNS
BATIC
0.195
0.485