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14
15
13
12
14
15
13
12
1413121110987654
1413121110987654meters
Ap/fill(?)
FILL
swirls
swirlsswirlsswirlsswirls
gc ashy siltliqfn.liqfn.dikedikeliqfn.dike
ashyashy
ashyashyashyshellyshellyshellyshellyshellyshelly
shellyshellyshellyshellyshellyshelly
graygrayclayclaygrayclay
graygrayclayclaygrayclay
k
01A10
dz
dzE4
E6
E2
E3
E1
BSCBSCBSC1BSC1BSCBSCBSC1
BSCBSCBSC2BSC2BSCBSCBSC2BSC2BSC2
BSCBSCBSC2BSC2BSCBSCBSC3BSC3BSCBSCBSC2BSC2BSCBSCBSC3
S1
C1
S4
S2
C4
C3
C2
S3
oscoscosc u80
u95
u90u92
u125
u120
u140
u300
u350
u400
u450
u500
u550
u130
u135
u250
u200
u110
u70
u80
u50
u63
u61
block
cl st
cl st
cl st
sd st
sd storange sd st
gray cl st
bn cl st
disturbed
disturbed
distur-bed
TRENCH 01A NORTH WALL
u45
u41
u31
u20
E5
E8
E8
E9
E10
E11
01A01
u100
E7
West East
14 13 12 11 10 89 7 6 5 4
14
13
12
meters
15
14
13
12
15
14 13 12 11 10 89 7 6 5 4
?
? ??
??
???
01A0301A04
01A06
01A02
01A07
01A09
01A08
01A05
East West
kk?
k
plastic
FILL
swirlsswirls
swirls
swirls
swirls
swirls
swirls
swirls
swirls
gc
ashy silt
liqfn.liqfn.dikedikeliqfn.dike
ashy
ashyashy
ashy
ashy
grayclay
shellyshellyshelly
shellyshelly
shelly
k
E4
E6
E7
E8
E8
E9
E10
E11
E5
E2
E3
E1
S1
C1
S4
S2
C4
C3
C2
S3
oscoscosc u80
u100u95
u90u92
u125
u140
u300
u350
u400
u450
u500
u550
u130
u135
u250
u200
u110
u80
u50
u20
u41
u63
u61
gc
gc
gc
u31
u45
u70
BSCBSCBSC1BSC1BSCBSCBSC1
BSCBSCBSC1BSC1BSCBSCBSC2BSC2BSCBSCBSC1BSC1BSCBSCBSC2
BSCBSCBSC1BSC1BSCBSCBSC3BSC3BSCBSCBSC1BSC1BSCBSCBSC3
sd cl st sd cl st
cl stcl st
cl st
highly
disturbed
disturbed
TRENCH 01A SOUTH WALL
U.S. DEPARTMENT OF THE INTERIORU.S. GEOLOGICAL SURVEY
OPEN-FILE REPORT 03-488Sheet 1 of 8, Version 3.0
Pamphlet accompanies map
2003
By
This map was printed on an electronic plotter directly from digital files. Dimensional calibration may vary between electronic plotters andbetween X and Y directions on the same plotter, and paper may change size due to atmospheric conditions; therefore, scale andproportions may not be true on plots of this map.
Available on World Wide Web at http://pubs.usgs.gov/of/2003/of03-488/
Any use of trade, firm, or product names in this publication is for descriptive purposes only and does not imply endorsement by the U.S.Government
Manuscript approved for publication December 22, 2003
James J. Lienkaemper, Patrick L. Williams, Timothy E. Dawson, Stephen F. Personius,Gordon G. Seitz, Samuel J. Heller and David P. Schwartz
7 FEET1 10 2 3 4 5 6
.5 1 METER1 0
LOGS AND DATA FROM TRENCHES ACROSS THE HAYWARD FAULT AT TYSON'S LAGOON(TULE POND), FREMONT, ALAMEDA COUNTY, CALIFORNIA, 2001-2003
Organic clayey silt
Blocky scarp colluvium
Blocky scarp colluvium
Blocky scarp colluvium
Organic clayey silt
u400
u300
BSC2
BSC1
u200
EXPLANATION
Organic clayey silt
Orange silty clay*
Contact––Dashed, approximate; dotted, inferredFault––Dashed, approximate; dotted, inferred
Event horizon
Unit number
Krotovina––infilled burrow
Minor shearFissure or crack––Open or filled voids without distinguishable slip, possibly tectonic in origin
Radiocarbon sample location–– rectangle indicates bulk samples
u80
u80
00A21
A3
ABBREVIATIONS
k
bsc
cl
gc
gv
m
sd
st
rk
blocky scarp colluvium
clay
gray clay
gravel
medium
sand
silt
rock
Banded brown clays & silts
Charcoal-rich sand
Banded organic siltyclay with charcoal
Dark brown clayey silt
Interbedded sands and clays
u70(cd)
u61(h)
u41(p)
Dark brown clayey siltu31(qr)
Yellow brown sandy siltu20(stu)
u45(j-o)
u50(i)