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.

For sale by U.S. Geological Survey, Information Services, Box 25286, Federal Center, Denver, CO 80225, 1–888–ASK–USGS

Digital files available at http://pubs.usgs.gov/sim/3281/

Suggested Citation: Johnson, S.Y., Ritchie, A.C., Seitz, G.G., Gutierrez, C.I., Conrad, J.E., and Phillips, E.L., 2013, Offshore and onshore 

geology and geomorphology, Offshore of Santa Barbara map area, California, sheet 10 in Johnson, S.Y., Dartnell, P., Cochrane, G.R., 

Golden, N.E., Phillips, E.L., Ritchie, A.C., Greene, H.G., Krigsman, L.M., Kvitek, R.G., Dieter, B.E., Endris, C.A., Seitz, G.G., Sliter, R.W., 

Erdey, M.D., Gutierrez, C.I., Wong, F.L., Yoklavich, M.M., Draut, A.E., Hart, P.E., and Conrad, J.E. (S.Y. Johnson and S.A. Cochran, eds.), 

California State Waters Map Series—Offshore of Santa Barbara, California: U.S. Geological Survey Scientific Investigations Map 

3281, pamphlet 45 p., 11 sheets, scale 1:24,000, http://dx.doi.org/10.3133/sim3281.

ISSN 2329-132X (online)

http://dx.doi.org/10.3133/sim3281

US Army Corps

of Engineers

Tcw-sh

Tcw

Tspl

Tspm

Tspu

Tma

Tcd

Kush

Tj

Qomp

Qls

Qc

Qyd

Qyf

Qas

Qa

Qes

Qb

af

Tmu

Tsq

QTst

Qss

Qcg

Qsb

Qbx

Qca

Qoa1

Qoa2

Tml

Tmm

Tv

Tr

Qms

Qas

Tm

Qmss

Qhfu

Qmsf

Tbu

Qmsc

af

Qmp

Mid-Channel Anticline, about 10 km south of the map area in the Santa Barbara Channel. Geologic 

map units associated with hydrocarbon emissions in the map area include grouped to solitary 

pockmarks (unit Qmp) and asphalt (tar) deposits (unit Qas), as well as areas of undifferentiated 

hydrocarbon-related features (unit Qhfu) that probably include a mix of mounds, mud volcanoes, 

pockmarks, carbonate mats, and other constructional and erosional “seabed forms” (see Keller and 

others, 2007), all of which are superimposed on consolidated, undivided Miocene and Pliocene 

bedrock (unit Tbu).

Offshore bedrock exposures are assigned to the Miocene Monterey Formation (unit Tm) and 

to the undivided Miocene and Pliocene bedrock unit (Tbu), primarily on the basis of extrapolation 

from the onland geologic mapping of Minor and others (2009), as well as the cross sections of 

Redin (2005), which are constrained by industry seismic-reflection data and petroleum well logs. 

Bedrock units typically are exposed in structural highs that include uplifts associated with the partly 

blind(?), south-dipping Rincon Creek Fault Zone and an anticline that developed above the south 

strand of the Red Mountain Fault in the southwestern part of the map area. 

The Offshore of Santa Barbara map area is in the Ventura Basin, in the southern part of the 

Western Transverse Ranges geologic province, which is north of the California Continental Borderland (Fisher and others, 2009). This province has undergone significant north-south compression 

since the Miocene, and recent GPS data suggest north-south shortening of about 6 mm/yr (Larson 

and Webb, 1992). The active, east-west-striking Red Mountain and Rincon Creek Faults and their 

related folds are some of the structures on which this shortening occurs. This fault system, in 

aggregate, extends for about 100 km through the Ventura and Santa Barbara Basins and represents 

an important earthquake hazard (see, for example, Fisher and others, 2009). Very high uplift rates of 

onland marine terraces from More Mesa (2.2 mm/yr), in the western part of the map area, to 

Summerland (0.7 mm/yr), a few kilometers east of the map area, are further indication of rapid 

shortening in this region (Keller and Gurrola, 2000).

REFERENCES CITED

Cacchione, D.A., Drake, D.E., Grant, W.D., and Tate, G.B., 1984, Rippled scour depressions of the 

inner continental shelf off central California: Journal of Sedimentary Petrology, v. 54, p. 

1,280–1,291.

Dibblee, T.W., Jr., 1986a, Geologic map of the Carpinteria quadrangle, Santa Barbara County, 

California: Santa Barbara, Calif., Dibblee Geological Foundation Map DF–04, scale 1:24,000.

Dibblee, T.W., Jr., 1986b, Geologic map of the Santa Barbara quadrangle, Santa Barbara County, 

California: Santa Barbara, Calif., Dibblee Geological Foundation Map DF–06, scale 1:24,000.

Fisher, M.A., Sorlien, C.C., and Sliter, R.W., 2009, Potential earthquake faults offshore southern 

California from the eastern Santa Barbara channel to Dana Point, in Lee, H.J., and Normark, 

W.R., eds., Earth science in the urban ocean—The Southern California Continental 

Borderland: Geological Society of America Special Paper 454, p. 271–290.

Goff, J.A., Mayer, L.A., Traykovski, P., Buynevich, I., Wilkens, R., Raymond, R., Glang, G., 

Evans, R.L., Olson, H., and Jenkins, C., 2005, Detailed investigations of sorted bedforms or 

“rippled scour depressions,” within the Martha’s Vineyard Coastal Observatory, 

Massachusetts: Continental Shelf Research, v. 25, p. 461–484.

Keller, E.A., and Gurrola, L.D., 2000, Final report, July, 2000—Earthquake hazard of the Santa 

Barbara fold belt, California: NEHRP Award #99HQGR0081, SCEC Award #572726, 78 p., 

available at http://www.scec.org/research/98research/98gurrolakeller.pdf.

Keller, E.A., Duffy, M., Kennett, J.P., and Hill, T., 2007, Tectonic geomorphology and hydrocarbon 

potential of the Mid-Channel anticline, Santa Barbara Basin, California: Geomorphology, v. 

89, p. 274–286.

Larson, K.M., and Webb, F.H., 1992, Deformation in the Santa Barbara Channel from GPS 

measurements 1987–1991: Geophysical News Letters, v. 19, p. 1,491–1,494.

Minor, S.A., Kellogg, K.S., Stanley, R.G., Gurrola, L.D., Keller, E.A., and Brandt, T.R., 2009, 

Geologic map of the Santa Barbara coastal plain area, Santa Barbara County, California: U.S. 

Geological Survey Scientific Investigations Map 3001, scale 1:25,000, 1 sheet, pamphlet 38 p., 

available at http://pubs.usgs.gov/sim/3001/.

Murray, B., and Thieler, E.R., 2004, A new hypothesis and exploratory model for the formation of 

large-scale inner-shelf sediment sorting and “rippled scour depressions:” Continental Shelf 

Research, v. 24, no. 3, p. 295–315.

Phillips, E., 2007, Exploring rippled scour depressions offshore Huntington Beach, CA: Santa Cruz, 

University of California, M.S. thesis, 58 p.

Redin, T., 2005, Santa Barbara Channel structure and correlation sections—Correlation section no. 

34A, Summerland area, Santa Ynez Mountains, across the east central Santa Barbara Channel 

to the China Bay area, Santa Cruz Island: American Association of Petroleum Geologists, 

Pacific Section, Publication CS 34A, 1 sheet.

Reid, J.A., Reid, J.M., Jenkins, C.J., Zimmerman, M., Williams, S.J., and Field, M.E., 2006, 

usSEABED—Pacific Coast (California, Oregon, Washington) offshore surficial-sediment data 

release: U.S. Geological Survey Data Series 182, available at http://pubs.usgs.gov/ds/2006/

182/.

Trembanis, A.C., and Hume, T.M., 2011, Sorted bedforms on the inner shelf off northeastern New 

Zealand—Spatiotemporal relationships and potential paleo-environmental implications: 

Geo-Marine Letters, v. 31, p. 203–214.

Weber, K.M., List, J.H., and Morgan, K.L., 2005, An operational Mean High Water datum for 

determination of shoreline position from topographic lidar data: U.S. Geological Survey 

Open-File Report 2005–1027, available at http://pubs.usgs.gov/of/2005/1027/.

EXPLANATION OF MAP SYMBOLS

Contact—Solid where location is certain, long-dashed where location is approximate, 

short-dashed where location is inferred, queried where uncertain

Fault—Solid where location is certain, long-dashed where location is approximate, 

short-dashed where location is inferred, dotted where location is concealed, queried 

where uncertain

Folds—Solid where location is certain, long-dashed where location is approximate, 

short-dashed where location is inferred, dotted where location is concealed

Antiform

Synform 

Overturned anticline

Overturned syncline

Anticlinal upwarp axis in Quaternary deposits

Synclinal downwarp axis in Quaternary deposits

Former shoreline or marine limit

Approximate modern shoreline—Defined as Mean High Water (MHW) (+1.33 m), 

North American Vertical Datum of 1988 (NAVD 1988)

3-nautical-mile limit of California’s State Waters

Area of “no data”—Areas beyond 3-nautical-mile limit of California’s State Waters 

were not mapped as part of California Seafloor Mapping Program

DISCUSSION

Marine geology and geomorphology were mapped in the Offshore of Santa Barbara map area 

from approximate Mean High Water (MHW) to the 3-nautical-mile limit of California’s State 

Waters. MHW is defined at an elevation of 1.33 m above the North American Vertical Datum of 

1988 (NAVD 88) (Weber and others, 2005). Offshore geologic units were delineated on the basis of 

integrated analyses of adjacent onshore geology with multibeam bathymetry and backscatter 

imagery (sheets 1, 2, 3), seafloor-sediment and rock samples (Reid and others, 2006), digital 

camera and video imagery (sheet 6), and high-resolution seismic-reflection profiles (sheet 8). 

The onshore geology was compiled from Dibblee (1986a,b) and Minor and others (2009). Unit 

ages, which are derived from these sources, reflect local stratigraphic relations.

The offshore part of the map area largely consists of a relatively shallow (less than 75 m deep), 

gently offshore-dipping (less than 1°) shelf underlain by sediments derived primarily from 

relatively small coastal watersheds that drain the Santa Ynez Mountains. Shelf deposits are primarily sand (unit Qms) at water depths less than about 35 to 50 m and, at depths greater than about 35 

to 50 m, are the more fine-grained sediments (very fine sand, silt, and clay) of unit Qmsf. The 

boundary between units Qms and Qmsf is based on observations and extrapolation from sediment 

sampling (see, for example, Reid and others, 2006) and camera ground-truth surveying (see sheet 

6). It is important to note that the boundary between units Qms and Qmsf should be considered 

transitional and approximate and is expected to shift as a result of seasonal- to annual- to decadalscale cycles in wave climate, sediment supply, and sediment transport.

Coarser grained deposits (coarse sand to boulders) of unit Qmsc, which are recognized on the 

basis of their high backscatter and, in some cases, their moderate seafloor relief (sheets 1, 2, 3), are 

found most prominently in a large (about 0.75 km2) lobe that is present from about 1,800 to 3,600 m 

offshore of the mouth of Arroyo Burro, in water depths of about 36 to 65 m. The lobe is inferred to 

consist of coarse-grained sediment (coarse sand to boulders) that is resistant to erosion. Although 

these coarse-grained deposits almost certainly are derived from Arroyo Burro, the lobe could 

represent either the underflow deposits of late Holocene floods or a relict geomorphologic feature, 

having been deposited in shallower marine deltaic (or even alluvial?) environments at lower sea 

levels in the latest Pleistocene and early Holocene. Unit Qmsc also is present in shallower water 

(depths of about 10 to 20 m), most notably in a small area (approximately 0.09 km2) that extends 

offshore from Montecito Creek, in the eastern part of the map area. 

The presence of coarser grained sediment (coarse sand and possibly gravel) also is inferred in 

shallower water (depths of 10 to 20 m) offshore from Arroyo Burro, but these deposits are mapped 

as unit Qmss because they are found within arcuate scour depressions that have been referred to as 

“rippled scour depressions” (see, for example, Cacchione and others, 1984; Phillips, 2007) or 

“sorted bedforms” (see, for example, Murray and Thieler, 2004; Goff and others, 2005; Trembanis 

and Hume, 2011). Although the general area in which Qmss scour depressions are found is not 

likely to change substantially, the boundaries of the unit(s), as well as the locations of individual 

depressions and their intervening flat sand sheets, likely are ephemeral, changing during significant 

storm events.

Hydrocarbon-seep-induced topography, which is present most prominently along the axis of 

anticlines, includes many features (described by Keller and others, 2007) along the trend of the 

LIST OF MAP UNITS

[See Description of Map Units (chapter 8, in pamphlet) for complete map-unit descriptions]

OFFSHORE GEOLOGIC AND GEOMORPHIC UNITS

[Note that composite units (gray-stippled areas) are designated on map by composite label indicating both overlying sediment cover and lower (older) unit, separated by slash (for example, 

Qms/Tm indicates that thin sheet of Qms overlies Tm)]

Artificial fill (late Holocene)—Rock, sand, and mud; placed and (or) dredged. Also 

includes seafloor substantially modified by human activity

Marine nearshore and shelf deposits (late Holocene)—Mostly sand; ripples common

Coarse-grained marine nearshore and shelf deposits (late Holocene)—

Predominantly sand, gravel, and boulders

Fine-grained marine shelf deposits (late Holocene)—Mostly mud to muddy sand

Marine shelf scour depressions (late Holocene)—Inferred to be coarse sand and 

gravel, in low-relief scours

Marine pockmarks (late Holocene)—Sand and mud, in circular to elliptical 

pockmarks

Asphalt deposits (Holocene)—Asphalt (tar) derived from natural hydrocarbon seeps

Mixed hydrocarbon-seep-related features and marine deposits (Holocene)—

Probably includes mixed and coalescing mounds, pockmarks, carbonate mats, and 

mud volcanoes and cones

Bedrock, undivided (Pliocene and Miocene)—Undivided strata of the Pico, Sisquoc, 

and Monterey Formations

Monterey Formation (Miocene)—Predominantly well-bedded siliceous and 

calcareous mudstone and shale

ONSHORE GEOLOGIC AND GEOMORPHIC UNITS 

[Units are compiled from Dibblee (1986a,b) and Minor and others (2009); unit ages, which are 

from these sources, reflect local stratigraphic relations]

Artificial fill (late Holocene)—Engineered and (or) nonengineered

Beach deposits (late Holocene)—Unconsolidated, loose, fine- to coarse-grained sand; 

well sorted

Coastal-estuarine deposits (late Holocene)—Locally organic-rich clay, silt, and 

subordinate sand

Channel alluvium (late Holocene)—Unconsolidated sediments, primarily pebble to 

boulder gravel

Asphalt deposits (Holocene)—Black asphalt (tar) derived from nearby natural 

hydrocarbon seeps

Alluvium and colluvium, undivided (Holocene and late Pleistocene)—Poorly 

consolidated silt, sand, and gravel deposits, in modern drainages and piedmont 

alluvial fans and floodplains

Debris-flow deposits (Holocene and late Pleistocene)—Massive, weakly consolidated 

rock-debris breccia

Colluvium (Holocene and late Pleistocene)—Poorly consolidated, poorly stratified, 

and poorly sorted sediments; formed by weathering and downslope movement of 

bedrock debris

Landslide deposits (Holocene to middle Pleistocene)—Ranges from poorly sorted and 

disrupted mixtures of rock fragments and soil to relatively intact bedrock slump 

blocks

Marine-terrace deposits (late Pleistocene)—Marine, fossiliferous gravel, sand, and 

silt 

Alluvial deposits (late Pleistocene)—Stratified silt, sand, and gravel 

Older alluvial deposits (late and middle Pleistocene)—Crudely stratified sand and 

sandstone, gravel, conglomerate, and breccia 

Casitas Formation (late and middle Pleistocene)—Nonmarine siltstone and silt, 

sandstone and sand, and conglomerate and gravel; deposited mainly as alluvium

Shale-clast sedimentary breccia (middle Pleistocene)—Nonmarine breccia and 

conglomerate; mostly shale and mudstone clasts derived from the Monterey 

Formation

Santa Barbara Formation (middle and early Pleistocene)—Mostly marine 

sandstone, with intervals of shale, siltstone, and silty to clayey sandstone. Contains 

diverse assemblage of marine invertebrate fossils

Unnamed sedimentary rocks east of Goleta Pier (Pleistocene and Pliocene?)—

Marine conglomerate, sandstone, siltstone, and mudstone. Mapped as the following 

three distinct units:

Conglomeratic unit (middle and early Pleistocene)—Conglomerate, sandstone, 

siltstone, and mudstone. Contains marine fossils and clasts derived from older units 

(Sisquoc Formation, Monterey Formation)

Sandstone-rich unit (early Pleistocene?)—Laminated and bioturbated sandstone, 

siltstone, and subordinate mudstone and conglomerate. Contains marine fossils and 

clasts derived from older units (Sisquoc Formation, Monterey Formation)

Siltstone unit (early Pleistocene and late Pliocene?)—Massive and extensively 

bioturbated siltstone, mudstone, and silty sandstone. Contains marine fossils

Sisquoc Formation (early Pliocene and late Miocene)—Marine diatomaceous 

mudstone and shale, conglomerate, and subordinate dolomite

Monterey Formation (Miocene)—Marine, predominantly well-bedded, siliceous and 

calcareous mudstone and shale, with subordinate porcelanite and dolomite. 

Mapped as the following three subunits:

Upper siliceous unit (late Miocene)—Mudstone and shale, with subordinate 

dolomite and porcelanite 

Middle shale unit (late and middle Miocene)—Shale, mudstone, dolomite, porcelanite, phosphorite, and subordinate tuff

Lower calcareous unit (middle and early Miocene)—Calcareous, siliceous, and 

phosphatic mudstone and shale, with subordinate dolomite, porcelanite, breccia, 

sandstone, and tuff

Rincon Shale (early Miocene)—Marine mudstone, with subordinate dolomite, 

siliceous shale, sandstone, and tuff

Vaqueros Formation (late Oligocene)—Shallow-marine, massive, bioturbated, 

resistant sandstone

Sespe Formation (Oligocene and late Eocene)—Interbedded sandstone, siltstone, 

mudstone, and conglomerate. Mapped as the following three subunits:

Upper sandstone and mudstone unit (late Oligocene)—Interbedded sandstone, 

siltstone, and mudstone

Middle conglomerate and sandstone unit (Oligocene)—Interbedded conglomerate, 

sandstone, and mudstone

Lower conglomerate and sandstone unit (early? Oligocene and late Eocene)—

Interbedded conglomerate, conglomeratic sandstone, sandstone, mudstone, and 

minor shale

Coldwater Sandstone (late? and middle Eocene)—Shallow-marine, thin- to 

thick-bedded sandstone, with subordinate siltstone, shale, and mudstone

 Shale unit (late? and middle Eocene)—Bedded siltstone and shale, with sandstone 

interbeds

Cozy Dell Shale (Eocene)—Silty micaceous shale and sandstone, with shale interbeds

Matilija Sandstone (Eocene)—Arkosic sandstone, with thin shale partings

Juncal Formation (Eocene)—Marine shale and sandstone

Jalama Formation (Late Cretaceous)—Predominantly micaceous clay shale, with 

minor sandstone interbeds 

120° 119°40' 119°20' 119°

34°

34°20'

Kilometers 0 5 10

0 4 8 Nautical Miles

Santa Barbara Channel

Santa

Barbara

Ventura

CALIF.

MAP LOCATION

Limit of California’s

 State Waters

Santa Cruz Island Santa Rosa Island

Area of

 Map

Anacapa

 Island

Qas Qhfu

Qms Qmsc Qmsf Qmss

Tm

Tbu

af Qmp

Tcw

Qa

Qls

?

Qyf Qyd Qc

Qb Qes

Tspl

Tspm

Tspu

Tv

Tr

Tml

Tmm

Tmu

Tsq

Qsb

Qca

Tcw-sh

Tma

Tcd

Kush

Tj

Qoa1

Qomp Qoa2

Qbx

Qas

QTst

Qss

Qcg

?

?

?

af

Pliocene

Pleistocene

Miocene

Oligocene

Eocene

CRETACEOUS

QUATERNARY

TERTIARY

Holocene

OFFSHORE GEOLOGIC AND GEOMORPHIC UNITS ONSHORE GEOLOGIC AND GEOMORPHIC UNITS

CORRELATION OF MAP UNITS

[See Description of Map Units (chapter 8, in pamphlet) for precise unit ages]

1

U.S. Geological Survey;

2

California Geological Survey 

Offshore and Onshore Geology and Geomorphology, Offshore of Santa Barbara Map Area, California

By

Samuel Y. Johnson,1 Andrew C. Ritchie,1 Gordon G. Seitz,2 Carlos I. Gutierrez,2 James E. Conrad,1 and Eleyne L. Phillips1

2013

ONE MILE = 0.869 NAUTICAL MILES

BATHYMETRIC CONTOUR INTERVAL 10 METERS

1 .5 0 1 KILOMETER

1000 0 1000 2000 3000 4000 5000 6000 7000 FEET

1 1/2 0 1 MILE

SCALE 1:24 000

APPROXIMATE MEAN

DECLINATION, 2013

MAGNETIC NORTH

12 / ° 1 2

TRUE NORTH

Onshore elevation data from NOAA Coastal Services 

Center (data collected by EarthData International in 

2002-2003) and from U.S. Army Corps of Engineers (data 

collected by Fugro Pelagos in 2009). Offshore 

shaded-relief bathymetry from map on sheet 2, this 

report. California's State Waters limit from NOAA Office 

of Coast Survey

Universal Transverse Mercator projection, Zone 11N

NOT INTENDED FOR NAVIGATIONAL USE

Offshore geology and geomorphology mapped by Samuel Y. Johnson, 

Andrew C. Ritchie, and Jamie E. Conrad, 2010-2011. Onshore geology and 

geomorphology compiled by Gordon G. Seitz and Carlos I. Gutierrez from 

Dibblee (1986a,b) and Minor and others (2010). Bathymetric contour 

intervals by Andrew C. Ritchie 

GIS database and digital cartography by Andrew C. Ritchie and Eleyne L. 

Phillips

Edited by Taryn A. Lindquist 

Manuscript approved for publication December 12, 2013 

40

30

20

50

10

60

70

80

Tcw Tcw

Tspl

Tcw

Tspl Tspm

Tspu

Tspl

Tcw

Tspm

Tspu Tcw

Tspl

Tspl Qoa1

Tspm

Tspm

Tspl af

Tspu

Tspm

Qa

Tcw

Qls Qls

Qc

Tspl

Qyf

Qls

Qyf

Tspm

Tspm

Tspu

Qls

Qyf

Qls Qls Qls Qls

Qls

Qyf

Qls Qyd

Qyf

Tr

Qoa1

Tv

Tv Qls

Qls af

Qa

Tr

Tspl Tr

Tv

Tspm

af

Qyf

Tv

Qyf

Tv

Qyf

Tr

Tv Qoa1

Tv

Tr

Qls

Qoa1

Tr

Tv

Tr

Tr

Tspl

Tspm

Tv

Tr

Tv

Qls

Tspu

Qoa1

Tr

Qoa1

Qyf

Tr

Qoa2

Qoa2

Qyf

Tr

af

Qyf

Qyf Tr

Tv

Tr Tspu

Tspu

Qoa2

Qoa1

Qoa1 Tv

Qyf

Qsb

Qsb

Tml

Qoa1

Qyf

Qoa1 Tspu

Qyf

Tspu

Qoa1 Qoa1

Qls

Tv Tspm

Tr

Qoa2

Qoa1

Tv

Tr

Qa

Qls

Tspu

Qa

Qyf Tspu Tr

Tv

Qoa1

Tr

Qsb

Qc

Qyf

Tr

Qls

Tspu

Qsb

Qa

Qa

Qyf

Tr

Qoa1

Qyf

Qls

Tspl

Qoa1

Tspu

Qoa2

Tspm

af

Qa

Qa

Qoa2

Tcw

Tspm

af

Tml

Tml?

Tr

Qyf

Qsb

Qoa1

Qls Tr

Tml

Qyf Qoa1

Qoa2?

Tr

Tr

Qoa2

Qoa2?

Qoa1 Qoa2

Qsb

Tv

Qoa2?

Tv

Tml

Qsb

Qsb

Qoa1

Tr

Qls?

Qyf

af

Tv

Qa

Tr

Qa

Qyf

af Qyf

Qyf

Qoa1

Tspl

Tml

Qoa1 Qyf Qyf

Qa

Tml?

Tr

Qyd Tmu

Qyf

Qoa1 Qls

Tml

Qoa1

Qa

Qoa2?

Qls Qls

Tr

Qoa1

Qls

Tr

Tsq

af

Qls

Tml

Tr

af

af

Qoa1

af

Qoa1

Qoa1

af

af

Qoa1

af

Qls

Tmu

Tr

af

Qls

af

Qoa1

Qyf

Qls

Qyf

Qyf

af

Tml

Qoa2?

Qa

Qyf

Qa

Qls

Qoa2?

Qoa1

Qsb

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Tv

af

Qyf

Tr

Qoa1

Qsb Qyf

Qoa2?

Tmm

Tr

Qa

Tspu

Qc Qbx

Qoa1

Qyf

Qoa1

Qca?

Tmu

Qyf

Qoa2?

Qoa1

Qoa2?

Qyf

Qoa1

Qbx

Qoa2?

Tmu

Qa

Qoa1

Qoa2? Qoa1

Qoa1

Qyf

Qoa1

Qyf

Qc

Qoa2?

Qoa1 Tmu

Qls

Qoa1

Qoa2?

Qyf

Qyf

Qsb

Qes

Qa

Qc

Qyf

Qoa1?

Qoa1?

Tml

af

Qyf

Tml

Qoa1

Qoa1

Qyf

Qoa1

Qsb

Qyf

Qc

Qyf

Tmu? QTst?

Qc

Qomp

af

Qes

Qyf

QTst?

Qoa2?

Qyf

Qls

Qyf

Qes

Tmm

Qoa1 Qes

af

af af

Qoa1

Tml

af

Tr

af

Qoa1

Qls

Tr

Qls

Qomp

Qa

af

Qoa1 Qoa1

Qb Qc

af

Tsq

Qyf

Tv

Tsq

Qca Qc

Qa

Qls

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Tml

Tr Qls Qls

Qls

Tr

Qc

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Tml

Tspu

Qoa1

Tspu Qomp?

Qls Tmm

Qb

Tmm

Qomp?

Qomp

Tmm Qomp? Qyf

Qomp? Qyf Qomp? Qyf

af

Qomp

Qsb?

Tmm

Qomp?

Tml

Qomp

Qls

Qls

Qls

Qls

Tcw

Qomp

Qb

Qcg Qss

QTst Qb Qb

Qb

Qas

Tmu

Qls

Qb

Tmm

af

Qls Qb

Tmm

Qls Tmm

Qb

Qb

Tmm

Tml

Qb

Qb

Tmm

Tcw

Tcw-sh

Tcw-sh

Kush

Tcw

Tj

Tma

Tcd

Qmsc

Tm

Tm

Qms/Tbu

Qas

Qas?

Qas?

Qas?

Qas?

Qas?

Qas?

Qas?

Qas?

Qas?

Qmp

Qmp

Tbu

Tbu

Tbu

Tbu

Tbu

Tbu

Tbu

Tbu?

Tbu

Tbu

Tbu?

Tbu

Qms/Tbu

Qms/Tbu

Qms/Tbu

Qms/Tbu

Qms/Tbu

Tbu

Qmsc

Qas?

Qms/Tm

Tm

Tm

Tm

Tbu

Qms/Tbu?

Qmss

Qmss

Qms/Tbu

Qms/Tbu

Tbu

Tbu

Qas

Qas

Qas

Qas Qas

Qas

Qms/Tbu

Qms/Tbu?

Qms/Tbu?

Qas?

Qmsc

Qmss

Qas?

Tbu

Tbu

Qmsf

Qmsf

Qmsf

Qmp Qmsc

Qmsf

Qms/Tbu

Qhfu

Qms/Tbu

Qms/Tm

Qms/Tbu

Qms

af

af

Qms/Tbu

Qms/Tbu

Qms/Tbu

Rincon Creek Fault

Red Mountain Fault (north strand)

Tspl

Tspu

QTst

Qb

Qsb

Tspu

Qms/Tm

Qms/Tbu

Qms

Qms

Qms

Qms

Qmsc

Qmsc

Tcd

Tcw-sh

Tma

Qmsf

Qmsf

Qms

Qms

Santa Barbara

Montecito

Arroyo Burro

More Mesa

Montecito Creek 

Qb

?

?

Tr

Qa

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

? ?

?

?

?

?

?

?

?

?

?

?

Tv

Lavigia Fault

119°45' 119°40'

119°45' 119°40'

34°20'

34°25'

34°20'

34°25'

Scientific Investigations Map 3281

Sheet 10 of 11

Pamphlet accompanies map

U.S. Department of the Interior

U.S. Geological Survey