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| Western Earth Surface Processes Team |
Geology of the Coastal Ranges in Southern California |
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Geologic Framework of the Cuyama 30' x 60' QuadrangleThe Cuyama 30' x 60' quadrangle is in a region of major geologic structures and geologically recent to ongoing structural deformation. The "Big Bend" segment of the San Andreas fault traverses the northeastern part of the quadrangle, just a few miles southeast of the epicenter of the 1857 Fort Tejon earthquake. This fault segment is oriented nearly east-west in contrast to the northwesterly orientation of the San Andreas fault in other areas. Converging on the San Andreas fault in this area are various east-west-oriented high-angle and low-angle faults of the western Transverse Ranges province, including possible blind thrusts akin to those that triggered the 1994 Northridge earthquake. To the west, the Cuyama Valley and adjacent mountains of the Coast Ranges are a geologically complex region where long-lived marine and nonmarine deposition and subsequent contractional deformation have created a setting for some of California's best-producing oil fields. SCAMP geologic mapping and related investigations in the Cuyama 30' x 60' quadrangle are designed to further clarify the geometry and evolution of these major geologic features and their significance for the tectonic development and earthquake hazard potential of southern California.
San Rafael-Sierra Madre Mountains regionA major scientific theme addressed by USGS investigations in the San Rafael-Sierra Madre Mountains region is the paleogeographic evolution of late Mesozoic and Cenozoic sedimentary basins in this area. Recent work in the Big Pine Mtn. quadrangle, for example, has demonstrated that the rate of sedimentation during the Late Cretaceous, Paleocene, and early Eocene (about 70 to 50 million years ago) was unusually slow, implying a paleogeography of sediment-starved, deep-water basins similar to those of the modern southern California borderland. Other research has focused on resolving the geometric relations at the west end of the Big Pine fault, which many geologists consider to be the northern boundary of the western Transverse Ranges province. USGS geologic mapping has shown that this important fault, which strikes nearly east-west in the Big Pine Mtn. quadrangle, curves to a northwesterly strike farther west and eventually merges with the northwest-striking East Huasna fault in the southern Coast Ranges. This change in strike may hold clues to the tectonic history and significance of the Big Pine fault and its earthquake potential.Lockwood Valley-Cuyama badlands areaIn the Lockwood Valley-Cuyama badlands area, much of our mapping has focused on clarifying the surface traces, geometries, offsets, and slip histories of late Cenozoic faults located southwest of the San Andreas fault. USGS work in the San Guillermo Mountain quadrangle, for example, has shown that the eastern part of the Big Pine fault is not a continuous, left-lateral strike-slip fault that intersects the San Andreas fault as previously thought. Instead, the Big Pine fault terminates eastward as a south-dipping thrust fault, and is separate from the fault extending eastward to the San Andreas. This new interpretation challenges prevailing models for the regional tectonic significance of the Big Pine fault and its structural relation to the San Andreas fault. In addition, our mapping has more accurately defined the geometry of several major low-angle faults in this area along which Precambrian and Mesozoic crystalline basement rocks have been thrust over late Cenozoic sedimentary deposits, probably as a result of compressive forces generated at the "Big Bend" of the San Andreas fault. USGS work also has produced new data for better reconstructing the Cenozoic depositional history of the area, including paleontologic evidence of deep-water marine sedimentation in the middle Eocene (about 45 million years ago) and stratigraphic and structural evidence of deformation and erosion in late Miocene time between about 5 and 10 million years ago.Selected Bibliographic References, Cuyama 30' x 60' QuadrangleGeologic Hazards StudiesReal, C.R. and others, 1996, Reconnaissance seismic hazard maps of portions of Los Angeles and Ventura Counties, California: California Division of Mines and Geology Open File Report 96-01, scale 1:24,000. Water Resource Studies California Department of Water Resources, 1980, California's ground water: California Department of Water Resources Bulletin 118, 135 p. California Department of Water Resources, 1980, Ground water basins in California: California Department of Water Resources Bulletin 118-80, 73 p. Wood, P.R., and Dale, R.H., 1964, Geology and ground-water features of the Edison--Maricopa area, Kern County, California: U.S. Geological Survey Water-Supply Paper 1656, 103 p. Earthquake-history, Fault-recurrence, Slip-Rate, Paleoseismology, and Geodetic-strain Investigations General Seismicity and Strain Studies Eaton, J.P., and Rymer, M.J., 1990, Regional seismotectonic model for the southern Coast Ranges, chapter 7 of Rymer, M.J., and Ellsworth, W.L., eds. The Coalinga, California, earthquake of May 2, 1983: U.S. Geological Survey Professional Paper 1487, p. 97-111. Feigl, K.L. Agnew, D.C., Bock, Y., Dong, D., Donnellan, A., Hager, B.H., Herring, T.A., Jackson, D.D., Jordan, T.H., King, R.W., Larsen, S., Larson, K.M., Murray, M.M., Shen, Z., and Webb, F.H., 1993, Space geodetic measurement of the velocity field in central and southern California: Journal of Geophysical Research, v. 98, p. 21,677-21,712. Hadley, David, and Kanamori, Hiroo, 1977, Seismic structure of the Transverse Ranges, California: Geological Society of America Bulletin, v. 88, p. 1469-1478. Humphreys, E.D., and Hager, B.H., 1990, A kinematic model for the late Cenozoic development of southern California crust and upper mantle: Journal of Geophysical Research, v. 95, no. B12, p. 19,747-19,762. Humphreys, E.D., and Weldon, R.J., II, 1994, Deformation across the western United States: A local estimate of Pacific-North American transform deformation: Journal of Geophysical Research, v. 99, p. 19,975-20,010. Jones, L.M., 1988, Focal mechanisms and the state of stress on the San Andreas fault in southern California: Journal of Geophysical Research, v. 93, no. B8, p. 8869-8891. Jones, L.M., and Hauksson, E., 1997, The seismic cycle in southern California: Precursor or response?: Geophysical Research Letters, v. 24, no. 4, p. 469-472. Lisowski, M., Savage, J.C., and Prescott, W.H., 1991, The velocity field along the San Andreas fault in central and southern California: Journal of Geophysical Research, v. 96, p. 8369-8389. National Earthquake Prediction Evaluation Council, 1988, Probabilities of large earthquakes occurring in California on the San Andreas fault: U.S. Geological Survey Open-File Report 88-398, 62 p. Shen, Z.-K., Jackson, D.D., and Ge, B.X., 1996, Crustal deformation across and beyond the Los Angeles basin from geodetic measurements: Journal of Geophysical Research, v. 101, p. 27,957-27,980. Snay, R.A., Cline, M.W., Philipp, C.R., Jackson, D.D., Feng, Y., Shen, Z-K., and Lisowski, M., 1996, Crustal velocity field near the big bend of California's San Andreas Fault: Journal of Geophysical Research, v. 101, p. 3173-3185. Sykes, L.R., and Nishenko, S.P., 1984, Probabilities of occurrence of large plate-rupturing earthquakes for the San Andreas, San Jacinto, and Imperial faults, California, 1983-2003: Journal of Geophysical Research, v. 89, no. B7, p. 59O5-5927. Sykes, L.R., and Seeber, Leonardo, 1985, Great earthquakes and great asperities, San Andreas fault, southern California: Geology, v. 13, no. 12, p. 835-838. Weldon, Ray, and Humphreys, Eugene, 1986, A kinematic model of southern California: Tectonics, v. 5, no. 1, p. 33-48. Wesnousky, S.G., 1986, Earthquakes, Quaternary faults, and seismic hazards in California: Journal of Geophysical Research, v. 91, p. 12587-12631. Wesnousky, S.G., 1988, Seismological and structural evolution of strike-slip faults: Nature, v. 335, No. 6188, p. 340-344. Wesson, R.L., and Wallace, R.E., 1985, Predicting the next great earthquake in California: Scientific American, v. 252, no. 2, p. 35-43. Working Group on California Earthquake Probabilities, 1995, Seismic hazards in southern California: Probable earthquakes, 1994-2024: Bulletin of the Seismological Society of America, v. 85, p. 379-439. Zheng-Kang Shen, Jackson, D.D., and Ge, B.X., 1996, Crustal deformation across and beyond the Los Angeles basin from geodetic measurements: Journal of Geophysical Research, v. 10, no. B12, p. 27957-27980. San Andreas Fault Studies Allen, C.R., 1981, The modern San Andreas fault, in Ernst, W.G., ed., The geotectonic development of California [Rubey Volume I]: Englewood Cliffs, New Jersey, Prentice-Hall, Inc., p. 511-534. Barrows, A.G., Kahle, J.E., and Beeby, D.J., 1976, Geology and fault activity of the Palmdale segment of the San Andreas fault zone, Los Angeles County, California: California Division of Mines and Geology Open-File Report 76-6LA, 30 p., scale 1:12,000. Beeby, D.J., 1979, Geology and fault activity of the Lake Hughes segment of the San Andreas fault zone, Los Angeles County, California: California Division of Mines and Geology Open-File Report 79-2LA, 35 P., scale 1:12,000. Eberhart-Phillips, D., Lisowski, M., and Zoback, M.D., 1990, Crustal strain near the Big Bend of the San Andreas fault: Analysis of the Los Padres-Tehachapi trilateration network: Journal of Geophysical Research, v. 95, p. 1139-1153. Fumal, T.E., Pezzopane, S.K., Weldon, R.J., II, and Schwartz, D.P., 1993, A 100-year average recurrence interval for the San Andreas fault at Wrightwood, California: Science, v. 259, p. 199-203. Garfunkel, Z., 1973, History of the San Andreas fault as a plate boundary: Geological Society of America Bulletin, v. 84, p. 2035-2042. Grant, L.B., and Sieh, K., 1994, Paleoseismic evidence of clustered earthquakes on the San Andreas fault in the Carrizo Plain: Journal of Geophysical Research, v. 99, no. B4, p. 6819-. Grant, L.B., and Sieh, K., 1994, Stratigraphic evidence for 7 meters of dextral slip on the San Andreas fault during the 1857 earthquake in the Carrizo Plain: Bulletin of the Seismological Society of America, v. 83, no. 3, p. 619-635. Hill, M.L., 1981, San Andreas fault: history of concepts: Geological Society of America Bulletin, v. 92, p. 112-131. Jones, L.M., 1988, Focal mechanisms and the state of stress on the San Andreas fault in southern California: Journal of Geophysical Research, v. 93, no. B8, p. 8869-8891. Lindvall, Scott and Rockwell, Tom, 1989, Minimum Holocene slip rate of the San Andreas fault at Gorman Creek, southern California: Friends of the Pleistocene Fieldtrip Guidebook, 1989. Ross, D.C., 1969, Map showing recently active breaks along the San Andreas fault between Tejon Pass and Cajon Pass, southern California: U.S. Geological Survey Miscellaneous Investigations Map I-553, scale 1:24,000. Savage, J.C., and Lisowski, M., 1998, Viscoelastic coupling model of the San Andreas Fault along the big bend, southern California: Journal of Geophysical Research, v. 103, no. B4, p. 7281-7292. Seeber, Leonardo, and Armbruster, J.G., 1995, The San Andreas fault system through the Transverse Ranges as illuminated by earthquakes: Journal of Geophysical Research, v. 100, no. B5, p. 8285-8310. Sieh, K.E., 1978, Slip along the San Andreas fault associated with the great 1857 earthquake: Bulletin of the Seismological Society of America, v. 68, no. 5, p. 1421-1448. Sieh, K.E., 1978, Prehistoric large earthquakes produced by slip on the San Andreas fault at Pallet Creek, California: Journal of Geophysical Research, v. 83, no. B8, p. 3907-3939. Sieh, K.E., 1984, Lateral offsets and revised dates of large prehistoric earthquake at Pallett Creek, southern California: Journal of Geophysical Research, v. 89, no. B9, p. 7641-7670. Sieh, K.E., and Jahns, R.H., 1984, Holocene activity of the San Andreas fault at Wallace Creek, California: Geological Society of America Bulletin, v. 95, p. 883-896. Sieh, K.E., Stuiver, M., and Brillinger, D., 1989, A more precise chronology of earthquakes produced by the San Andreas fault in southern California: Journal of Geophysical Research, v. 94, no. B1, p. 603-623. Sykes, L.R., and Nishenko, S.P., 1984, Probabilities of occurrence of large plate-rupturing earthquakes for the San Andreas, San Jacinto, and Imperial faults, California, 1983-2003: Journal of Geophysical Research, v. 89, no. B7, p. 5905-5927. Sykes, L.R., and Seeber, Leonardo, 1985, Great earthquakes and great asperities, San Andreas fault, southern California: Geology, v. 13, no. 12, p. 835-838. Wallace, R.E., ed., 1990, The San Andreas fault system, California: U.S. Geological Survey Professional Paper 1515, 283 p. Weldon, R.J., II, and Sieh, K.E., 1985, Holocene rate of slip and tentative recurrence interval for large earthquakes on the San Andreas fault, Cajon Pass, southern California: Geological Society of America Bulletin, v. 96, p. 793-812. Transverse Ranges, including Santa Ynez, Big Pine, and "Big Bend" Faults Davis, T.L., and Lagoe, M.B., 1987, The 1952 Arvin-Tehachapi earthquake (M=7.7) and its relationship to the White Wolf fault and the Pleito thrust system: Geological Society of America Abstracts with Programs, v. 19, no. 6, p. 370. Hadley, David, and Kanamori, Hiroo, 1977, Seismic structure of the Transverse Ranges, California: Geological Society of America Bulletin, v. 88, p. 1469-1478. Huftile, G. J., and Yeats, R. S., 1995, Convergence rates across a displacement transfer zone in the western Transverse Ranges, Ventura Basin, California: Journal of Geophysical Research, v. 100, no. B2, p. 2043-2067. Jackson, J., and Molnar, P., 1990, Active faulting and block rotations in the western Transverse Ranges, California: Journal of Geophysical Research, v. 95, p. 22,073-22,087. Johnson, D.L.; Keller, E.A., and Rockwell, T.K., 1981, The neotectonics and soil geomorphology of the Ventura River and central Ventura basin, California, in Logan, R.F., ed., American Association of Geographers Field Trip Guide for 1981, p. 42-60. Keller, E.A., Zepeda, R.L., Rockwell, T.K., Ku, T.L., and Dinklage, W.S., 1998, Active tectonics at Wheeler Ridge, southern San Joaquin Valley, California: Geological Society of America Bulletin, v. 110, p. 298-310. Keller, E.A., Seaver, D.B., Laduzinsky, D.L., Johnson, D.L., and Ku, T.L., 2000, Tectonic geomorphology of active folding over buried reverse faults: San Emigdio mountain front, southern San Joaquin Valley, California: Geological Society of America Bulletin, v. 112, p. 86-97. Namson, J.S., and Davis, T.L., 1988, Seismically active fold and thrust belt in the San Joaquin Valley, central California: Geological Society of America Bulletin, v. 100, p. 257-273. Rockwell, T.K., Keller, E.A., Clark, M.N., and Johnson, D.L., 1984, Chronology and rates of faulting of Ventura River terraces, California: Geological Society of America Bulletin, v. 95, no. 12, p. 1466-1474. Rockwell, T.K., Keller, E.A., and Dembroff, G.R., 1988, Quaternary rate of folding of the Ventura Avenue anticline, western Transverse Ranges, southern California: Geological Society of America Bulletin, v. 100, no. 6, p. 850-858. Rodgers, D.A., and Chinnery, M.A., 1973, Stress accumulation in the Transverse Ranges, southern California, in Kovich, R.L., and Nur, A., eds., Proceedings, Conference on Tectonic Problems of the San Andreas Fault System: Stanford University Publications in the Geological Sciences, v. 13, p. 70-79. Shaw, J.H., and Suppe, J., 1994, Active faulting and growth folding in the eastern Santa Barbara Channel, California: Geological Society of America Bulletin, v. 106, p. 607-626. Shaw, J.H., and Suppe, J., 1996, Earthquake hazards of active blind-thrust faults under the central Los Angeles basin, California: Journal of Geophysical Research, v. 101, no. B4, p. 8623-8642. Shen, Z.-K., Jackson, D.D., and Ge, B.X., 1996, Crustal deformation across and beyond the Los Angeles basin from geodetic measurements: Journal of Geophysical Research, v. 101, p. 27,957-27,980. Stein, R.S., and Thatcher, W., 1981, Seismic and aseismic deformation associated with the 1952 Kern County, California, earthquake and relationship to the Quaternary history of the White Wolf fault: Journal of Geophysical Research, v. 86, p. 4913-4928. Webb, T.H., and Kanamori, Hiroo, 1985, Earthquake focal mechanisms in the eastern Transverse Ranges and San Emigdio Mountains, southern California, and evidence for a regional decollement: Bulletin of the Seismological Society of America, v. 75, no. 3, p. 737-757. Yeats, R.S., 1981, Quaternary flake tectonics of the California Transverse Ranges: Geology, v. 9, p. 16-20. Yeats, R.S., 1983, Large-scale Quaternary detachments in Ventura Basin, southern California: Journal of Geophysical Research, v. 88, no. B1, p. 569-583. Yeats, R.S., 1988, Late Quaternary slip rate on the Oak Ridge fault, Transverse Ranges, California: implications for seismic risk: Journal of Geophysical Research, v. 93, no. B10, p. 12,137-12,149. Yeats, R.S., Huftile, G.J., and Stitt, L. T., 1994, Late Cenozoic tectonics of the east Ventura Basin, Transverse Ranges, California: American Association of Petroleum Geologists Bulletin, v. 78, no. 7, p. 1040-1074. Yeats, R.S. and Rockwell, T.K., 1991, Quaternary geology of the Ventura and Los Angeles basins, California: in Morrison, R.B., ed., Quaternary Nonglacial Geology: Conterminous U. S.: Geological Society of America, DNAG v. K-2, p. 185-189. Geographic Information Systems (GIS) Investigations Kennedy, S.A., and Matti, J.C., 1999, Data-base model specifications for digital geologic-map data bases produced by the Southern California Areal Mapping Project (SCAMP), version 2.0a: U.S. Geological Survey Open-File Report 99-145, 45 p. Matti, J.C., Miller, F.K., Powell, R.E., Kennedy, S.A., Bunyapanasarn, T.P., Koukladas, Catherine, Hauser, R.M., and Cossette, P.M., 1997, Geologic-point attributes for digital geologic-map data bases produced by the Southern California Areal Mapping Project, version 1.0: U.S. Geological Survey Open-File Report 97-859, 51 p. Matti, J.C., Miller, F.K., Powell, R.E., Kennedy, S.A., and Cossette, P.M., 1997, Geologic-polygon attributes for digital geologic-map data bases produced by the Southern California Areal Mapping Project, version 1.0: U.S. Geological Survey Open-File Report 97-860, 248 p. Matti, J.C., Powell, R.E., Miller, F.K., Kennedy, S.A., Ruppert, K.R., Morton, G.L., and Cossette, P.M., 1997, Geologic-line attributes for digital geologic-map data bases produced by the Southern California Areal Mapping Project, version 1.0: U.S. Geological Survey Open-File Report 97-861, 96 p. Geologic Maps and Geologic-Map Data Bases Paper Geologic Maps Dibblee, T. W., Jr., 1972, Geologic maps of fourteen 15-minute quadrangles along the San Andreas fault in the vicinity of Paso Robles and Cholame southeastward to Maricopa and Cuyama, California, with index map (Shandon, Orchard Peak, "Blackwells Corner", Pozo, La Panza, Simmler, "McKittrick", Branch Mountain, Caliente Mountain, "Fellows", "Taft", McPherson Peak, Salisbury Canyon, and Ventucopa): U.S. Geological Survey Open-File Map 72-89, scale 1:62,500. Dibblee, T.W., Jr., 1973, Geologic maps of the Santiago Creek, Eagle Rest Peak, Pleito Hills, Grapevine, and Pastoria Creek quadrangles, Kern County, California: U.S. Geological Survey Open-File Report 73-57, scale 1:24,000. Dibblee, T.W., Jr., 1974, Geologic map of San Emigdio quadrangle, California: U.S. Geological Survey Open-File Report, scale 1:24,000. Dibblee, T.W., Jr., 1985, Geologic map of the Wheeler Springs quadrangle, Ventura County, California: Dibblee Geological Foundation, Map [DF-01], scale 1:24,000. Dibblee, T.W., Jr., 1985, Geologic map of the Old Man Mountain quadrangle, Ventura and Santa Barbara Counties, California: Dibblee Geological Foundation, Map DF-02 (Ehrenspeck, H.E., ed.), scale 1:24,000. Dibblee, T.W., Jr., 1986, Geologic map of the Hildreth Peak quadrangle, Santa Barbara County, California: Dibblee Geological Foundation, Map DF-03 (Ehrenspeck, H.E., ed.), scale 1:24,000. Dibblee, T.W., Jr., 1986, Geologic map of the Little Pine Mountain quadrangle, Santa Barbara County, California: Dibblee Geological Foundation, Map DF-05 (Ehrenspeck, H.E., ed.), scale 1:24,000. Dibblee, T.W., Jr., 1987, Geologic map of the San Marcos Pass quadrangle, Santa Barbara County, California: Dibblee Geological Foundation, Map DF-08 (Ehrenspeck, H.E., ed.), scale 1:24,000. Dibblee, T.W., Jr., 1987, Geologic map of the Lake Cachuma quadrangle, Santa Barbara County, California: Dibblee Geological Foundation, Map DF-10 (Ehrenspeck, H.E., ed.), scale 1:24,000. Dibblee, T.W., Jr., 1987, Geologic map of the Lion Canyon quadrangle, Ventura County, California: Dibblee Geological Foundation, Map DF-14 (Ehrenspeck, H.E., ed.), scale 1:24,000. Dibblee, T.W., Jr., 1993, Geologic map of the Figueroa Mountain quadrangle, Santa Barbara County, California: Dibblee Geological Foundation, Map DF-43 (Ehrenspeck, H.E., ed.), scale 1:24,000. Dibblee, T.W., Jr., 1996, Geologic map of the Topatopa Mountains quadrangle, Ventura County: Dibblee Geological Foundation, Map DF-60 (Ehrenspeck, H.E., ed.), scale 1:24,000. Kellogg, K.S., 1999, Geologic map of the Lockwood Valley quadrangle, Ventura County, California: U.S. Geological Survey Open-File Report 99-130, scale 1:24,000. Ross, D.C., 1972, Geologic map of the pre-Cenozoic basement rocks, Gabilan Range, Monterey and San Benito Counties, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-357, scale 1:125,000. Tennyson, M.E., Beeman, W. R., and Urban, Stephanie B., 1995, Preliminary digital geologic map of the Santa Maria 30' X 60' quadrangle, California, in ARC/INFO, with exploration well locations and subsurface formation depths: U.S. Geological Survey Open-File Report 95-25, scale 1:100,000. Vedder, J. G., Dibblee, T. W., Jr., and Brown, R. D., Jr., 1973, Geologic map of the upper Mono Creek-Pine Mountain area, California, showing rock units and structures offset by the Big Pine fault: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-752, scale 1:48,000. Vedder, J.C., Howell, D.G., McLean, Hugh, Stanley, R.G., and Wiley, T.J., 1991, Geologic map of the Tepusquet Canyon and Manzanita Mountain quadrangles: U.S. Geological Survey Open-File Report 91-109, scale 1:24,000. Vedder, J.G., Howell, D.G., and McLean, Hugh, 1994, Preliminary geologic map of Bates Canyon and part of Peak Mountain quadrangles, California: U.S. Geological Survey Open-File Report 94-128, 1:24,000 scale. Vedder, J.G., McLean, Hugh, and Stanley, R.G., 1995, Preliminary geologic map of Big Pine Mtn. quadrangle, California: U.S. Geological Survey Open-File Report 95-554, scale 1:24,000. Digital Geologic-Map Data Bases Minor, Scott A., 1999, Preliminary Geologic Map of the San Guillermo Mountain Quadrangle, Ventura County, California, Version 1.0: U.S. Geological Survey Open-File Report 99-032, scale 1:24,000. Stanley, R.G., and Vedder, J.G., 2000, Digital geologic map of the San Rafael Mountain 7.5' quadrangle, Santa Barbara County, California, version 1.0: U.S. Geological Survey Open-File Report 2000-XXX, scale 1:24,000 (in press). Geologic-Setting and Geologic-History Investigations Basin-Evolution and Clast-Provenance Studies Blake, G.H., 1991, Review of the Neogene biostratigraphy and stratigraphy of the Los Angeles basin and implications for basin evolution, in Biddle, K.T., ed., Active margin basins: American Association of Petroleum Geologists Memoir 52, p. 135-184. Goodman, E.D., and Malin, R.E., 1992, Evolution of the southern San Joaquin Basin and mid-Tertiary "transitional" tectonics, central California: Tectonics, v. 11, p. 478-498. Howell, D.G., Champion, D.E., and Vedder, J.G., 1987, Terrane accretion, crustal kinematics, and basin evolution, southern California, in Ingersoll, R.A., and Ernst, W.G., eds., Cenozoic basin development of coastal California (Rubey Volume VI): Englewood Cliffs, Prentice-Hall, p. 242-258. Luyendyk, B.P., and Hornafius, J.S., 1987, Neogene crustal rotations, fault slip, and basin development in southern California, in Ingersoll, R.V., and Ernst, W.G., eds., Cenozoic basin development of coastal California (Rubey Volume VI): Englewood Cliffs, New Jersey, Prentice-Hall, p. 259-283. McCrory, P.A., Wilson, D.S., Ingle, J.C., Jr., and Stanley, R.G., 1995, Neogene tectonic evolution of Santa Maria basin, California, and its relationship to transfer of central California to the Pacific plate: U.S. Geological Survey Bulletin 1995-J, p. J1-J38. Nilsen, T.H., and Clarke, S.H., Jr., 1975, Sedimentation and tectonics in the early Tertiary continental borderland of central California: U.S. Geological Survey Professional Paper 925, 64 p. Yokoyama, C.E., Cole, R.B., Schwartz, R.K., and Stanley, R.G., 1996, Provenance evaluation using sandstone petrography in a middle Tertiary extensional basin, Plush Ranch Formation, California: Geological Society of America Abstracts with Programs, v. 28, no. 3, p. 111. | Return to Geologic-Setting and Geologic-History Listings | Return to Table of Contents | Crystalline Basement-Rock Studies Ague, J.J., and Brimhall, G.H., 1988, Magmatic arc asymmetry and distribution of anomalous plutonic belts in the batholiths of California: effects of assimilation, crustal thickness, and depth of crystallization: Geological Society of America Bulletin, v. 100, p. 912-927. Ague, J.J., and Brimhall, G.H., 1988, Regional variations in bulk chemistry, mineralogy, and the compositions of mafic and accessory minerals in the batholiths of California: Geological Society of America Bulletin, v. 100, p. 891-911. Ross, D.C., 1970, Quartz gabbro and anorthositic gabbro: Markers of offset along the San Andreas fault in the California Coast Ranges: Geological Society of America Bulletin, v. 81, p. 3647-3662. Ross, D.C., 1972, Petrographic and chemical reconnaissance study of some granitic and gneissic rocks near the San Andreas fault from Bodega Head to Cajon Pass, California: U.S. Geological Survey Professional Paper 698, 92 p. Ross, D.C., 1974, Map showing basement geology and location of wells drilled to basement Salinian block, central and southern Coast Ranges, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-588, scale 1:500,000. Ross, D.C., 1976, Metagraywacke in the Salinian block, central Coast Ranges, California-and a possible correlative across the San Andreas fault: U.S. Geological Survey Journal of Research, v. 5, p. 683-696. Ross, D.C., 1977, Pre-intrusive metasedimentary rocks of the Salinian block, California-a paleotectonic dilemma, in Stewart, J.H., Stevens, C.H., and Fritsche, A.E., eds., Paleozoic Paleogeography of the Western United States: Society of Economic Paleontologists and Mineralogists, Pacific Coast Paleogeography Symposium 1, p. 371-380. Ross, D.C., 1978, The Salinian block-a Mesozoic granitic orphan in the California Coast Ranges, in Howell, D.G., and McDougall, K.A., eds., Mesozoic Paleogeography of the Western United States: Pacific Section, Society of Economic Paleontologists and Mineralogists, Pacific Coast Paleogeography Symposium 2, p. 509-522. Ross, D.C., 1984, Possible correlations of basement rocks across the San Andreas, San Gregorio-Hosgri, and Rinconada-Reliz-King City faults, California: U.S. Geological Survey Professional Paper 1317, 37 p. Ross, D.C., 1986, Basement-rock correlations across the White Wolf-Breckenridge-southern Kern Canyon fault zone, southern Sierra Nevada, California: U.S. Geological Survey Bulletin 1651, 25 p. Sorensen, S.S., 1985, Petrologic evidence for Jurassic, island arc-like basement rocks in the southwestern Transverse Ranges and California Continental Borderland: Geological Society of America Bulletin, v. 96, p. 997-1006. Sorensen, S.S., 1988, Tectonometamorphic significance of the basement rocks of the Los Angeles basin and the inner Continental Borderland, in Ernst, W.G., ed., Metamorphism and crustal evolution of the western United States (Rubey Volume VII): Englewood Cliffs, New Jersey, Prentice-Hall, p. 998-1022. 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