structural trend map of the hosgri fault zone, eastern ... · structural trend map of the hosgri...
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SCALE 1: 200 00050 10 20 30 KILOMETERS
UD
. .
FM
KA A'
EXPLANATIONPrimary Faults
Primary—Trace of Hosgri Fault Zone with relative vertical and strike-slip displace-ments, indicated by letters and arrows
High angle—Relative vertical displacement shown; U = up, D = down
Low angle—Barb on upthrown plate
FoldsAxis of major fold structures
Other
Secondary structuresFaults and folds—Dashed where lateral continuity is inferred
Solid lines or long dashes—Indicate structures that deform the early-late Pliocene unconformity
Short dashes—Indicate structures that do not deform the early-late Pliocene unconformity
Areas of Pliocene and older bedrock outcrops on the seafloor—Mapped from sidescan sonar and high resolution subbottom profile surveys
Location of illustrated seismic profiles
Petroleum company wells
Coordinate System is NAD 83, UTM Zone 10 in Meters.
0 100 Kilometers
PACIFIC OCEAN
Area of Plate
125°0'0"W 120°0'0"W 115°0'0"W
125°0'0"W 120°0'0"W 115°0'0"W
40°0'0"N
35°0'0"N
30°0'0"N
40°0'0"N
35°0'0"N
30°0'0"N
C a l i f o r n i a
PACIFIC
OCEAN
MorroBay
EsteroBay
San LuisObispo Bay
UD UD
UD
UD
UD
UD
UD
UD
U D
U D
U D
U D
U D
DU
UDD
U
UD
UD
UD
UD
UD
DU
DU
UD
UD
DU
DU
DU D
U
DU
DU
DU
DU
DU
DU
DU
DU
DU
DU
DU
DU
D
UDU
D
UD
IH
G
F
E
D
C
B
A
I'
H'
G'
F'E'
C'
C"
B'
A'
C"'
PB2
M
L
K
J
NTSS
M'
L'
K'
J'
PB1
NT'
SS'
PB1'
PB2'
D'
Point Buchon
Point Estero
Ragged Point
Cambria
Cape San Martin
San Simeon Point
Point SanLuis
PurisimaPoint
Point Sal
Point Pedernales
PointArguello
PointPiedrasBlancas
422-1
416-1
415-2
415-1
409-4409-3
402-1
397-2
397-1
396-1
395-1 060-1
496-1
444-1
443-2
443-1
440-2
440-1
435-1434-1
430-1
427-1426-1
425-2425-1
424-1
413-1
411-1
406-1
HO
S GR I F A
UL T Z O
NE
HO
SG
RI
F AU
L T
ZO
NE
LOS OSOS
FAULT ZONE
PIEDRAS BLANCAS ANTIFORM
SAN SIMEON FAULT ZONE
PECHO FAULT
N. PECHO FAULT
S. PECHO FAULT
CASMALIA FAULT ZONE
LION’S HEAD FAULT
PURISIMA
STRUCTURE
LOMPOC
STRUCTURE
OLSON
FAULTSAN LUIS BAY
FAULT
WILMAR AVENUE
FAULTLOS BERROS FAULT
OCEANO FAULT
121°30'0"W650000
121°0'0"W700000
120°30'0"W
121°30'0"W650000
121°0'0"W700000
3950000
35°30'0"N
3900000
35°0'0"N
3850000
3950000
35°30'0"N
3900000
35°0'0"N
3850000
Bulletin 1995–CCPlate 4 of 7
U.S. Department of the InteriorU.S. Geological Survey
Structural Trend Map of the Hosgri Fault Zone,Eastern Offshore Santa Maria Basin
ByC. Richard Willingham, Jan D. Rietman, Ronald G. Heck, and William R. Lettis
2013
Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government
This map was printed on an electronic plotter directly from digital files. Dimensional calibration may vary between electronic plotters and between X and Y directions on the same plotter, and paper may change size due to atmospheric conditions; therefore, scale and proportions may not be true on plots of this map.
Digital files available at http://pubs.usgs.gov/bul/1995/cc/
Suggested Citation: Willingham, C.R., Rietman, J.D., Heck R.G., and Lettis, W.R., 2013, Characterization of the Hosgri Fault Zone and adjacent structures in the offshore Santa Maria Basin, south-central California: U.S. Geological Survey Bulletin 1995-CC, scale 1:200,000 [http://pubs.usgs.gov/bul/1995/cc/].