"

"

"

"

"

"

"

"

"

"

"

" "

"

"

"

"

"

"

"

"

"

"

"

"

"

"

"

"

"

"

"

"

"

"

"

MMM

MM

M

M MM

MM

MMM

M

MMM

M M

MM M

MM

MM

M

M

SCALE 1: 200 00050 10 20 30 KILOMETERS

UD( (

KA A'

EXPLANATIONFaults

Primary—Traces of Hosgri Fault Zone at mapped horizon

High angle—Relative vertical displacement shown; U = up, D = down

Low angle—Barb on upthrown plate

Limits of outcrops and subcrops

Subsea depth at mapped horizon500-meter contour interval

100-meter contour interval

Petroleum company wells

Location of illustrated seismic profiles

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

MorroBay

PACIFIC

OCEAN San LuisObispo Bay

EsteroBay

UD

UD

UD

UD

UD

UD

M

L

K

J

IH

F

E

D

C

B

A

NT

SS

M'

L'

K'

J'

I'

H'

G'

F'E'

D'

C'

C"

B'

A'

PB1

NT'

SS'

PB2

C"'

PB1'

PB2'

G

Point Buchon

Point Estero

Ragged Point

Cambria

Cape San Martin

San Simeon Point

Point SanLuis

PurisimaPoint

Point Sal

Point Pedernales

PointArguello

Point Piedras Blancas

496-1

444-1

443-2

443-1

440-2

440-1

435-1434-1

430-1

427-1426-1425-2

425-1424-1

422-1

416-1

415-2

415-1

413-1

411-1

409-4409-3

406-1

402-1

397-2

397-1396-1

395-1 060-1

HO

SG

RI F A

UL T

ZO

NE

HO

SG

RI

F AU

L TZ

ON

E

PURISIMA

STRUCTURE

LOMPOC

STRUCTURE

PIEDRAS BLANCAS STRUCTURE

QUEENIE STRUCTURE

SAN SIMEON FAULT

-500

-500

-5 00

-1000

-1000

-500

-500

-1000

-500

-1000

-1000

-1000

-500-5 00

-500

-5 00

-1000

-100 0

-1 000

-500

-1000

-500

-1000

-60 0

-7 00

-500

-7 00

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 6 of 7

U.S. Department of the InteriorU.S. Geological Survey

Structure Contour Map of the Top of MioceneUnconformity, 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/].