Oligocene nonmarine rocks, unit 2 (Central and Southern California)

Sandstone, shale, and conglomerate; in part Miocene and Eocene.
State California
Name Oligocene nonmarine rocks, unit 2 (Central and Southern California)
Geologic age middle Eocene to early Miocene
Comments Central and southern California
Primary rock type sandstone
Secondary rock type conglomerate
Other rock types mudstone; siltstone; sedimentary breccia; evaporite; limestone
Lithologic constituents
Map references
Jennings, C.W., Strand, R.G., and Rogers, T.H., 1977, Geologic map of California: California Division of Mines and Geology, scale 1:750,000.
Unit references
Jennings, C.W., Strand, R.G., and Rogers, T.H., 1977, Geologic map of California: California Division of Mines and Geology, scale 1:750,000.
Jennings, C.W., 1985, An explanatory text to accompany the 1:750,000 scale fault and geologic maps of California: California Division of Mines and Geology, Bulletin 201, 197 p.
Smith, A.R., 1965, Geologic map of California, Olaf P. Jenkins edition, Bakersfield sheet, scale 1:250,000.
Jennings, C.W., and Strand, R.G., 1969, Geologic map of California, Olaf P. Jenkins edition, Los Angeles sheet, scale 1:250,000.
Jennings, C.W., 1967, Geologic map of California, Olaf P. Jenkins edition, Salton Sea sheet, scale 1:250,000.
Rogers, T.H., 1969, Geologic map of California, Olaf P. Jenkins edition, San Bernardino sheet, scale 1:250,000.
Jennings, C.W., 1959, Geologic map of California, Olaf P. Jenkins edition, San Luis Obispo sheet, scale 1:250,000.
Rogers, T.H., 1966, Geologic map of California, Olaf P. Jenkins edition, Santa Ana sheet, scale 1:250,000.
Jennings, C.W., and Strand, R.G., 1959, Geologic map of California, Olaf P. Jenkins edition, Santa Cruz sheet, scale 1:250,000.
Jennings, C.W., 1959, Geologic map of California, Olaf P. Jenkins edition, Santa Maria sheet, scale 1:250,000.
Yerkes, R.F., and Campbell, R.H., 1997, Preliminary geologic map of the west half, Los Angeles 60' x 30' quadrangle: U.S. Geological Survey Open-File Report 97-483, scale 1:100,000.
Tennyson, M.E., 1992, Preliminary geologic map of the Santa Maria 30' x 60' quadrangle, California: U.S. Geological Survey Open-File Report 92-189, 9 p., scale 1:100,000.
Brabb, E.E., Graymer, R.W., and Jones, D.L., 2000, Geologic map and map database of the Palo Alto 30' x 60' quadrangle, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-2332, 30 p., scale 1:100,000.
Morton, D.M., 1999, Preliminary digital geologic map of the Santa Ana 30' x 60' quadrangle, southern California: U.S. Geological Survey Open-File Report 99-172, scale 1:100,000.
Dibblee, T.W., Jr., 1973, Regional geologic map of San Andreas and related faults in Carrizo Plain, Temblor, Caliente, and La Panza Ranges and vicinity, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-757, scale 1:125,000.
Durham, D.L., 1974, Geology of the southern Salinas Valley area, California: U.S. Geological Survey Professional Paper 819, 111 p., scale 1:125,000.
Clark, J.C., and Rietman, J.D., 1973, Oligocene stratigraphy, tectonics, and paleogeography southwest of the San Andreas fault, Santa Cruz Mountains and Gabilan Range, California Coast Ranges: U.S. Geological Survey Professional Paper 783, 18 p., scale 1:125,000.
Clark, J.C., 1981, Stratigraphy, paleontology, and geology of the central Santa Cruz Mountains, California Coast Ranges: U.S. Geological Survey Professional Paper 1168, 51 p., scale 1:24,000.
Bartow, J.A., 1991, Geologic map of the northwestern Caliente Range, San Luis Obispo County, California: U.S. Geological Survey Miscellaneous Investigations Series Map I-2077, scale 1:36,000.
Frizzell, V.A., Jr., and Weigand, P.W., 1993, Whole-rock K-Ar ages and geochemical data from middle Cenozoic volcanic rocks, southern California: A test of correlations across the San Andreas fault, in Powell, R.E., Weldon, R.J., II, and Matti, J.C., eds., The San Andreas fault system: Displacement, palinspastic reconstruction, and geologic evolution: Geological Society of America Memoir 178, p. 273-287.
Law, R.D., Eriksson, K., and Davisson, C., 2001, Formation, evolution, and inversion of the middle Tertiary Diligencia basin, Orocopia Mountains, southern California: Geological Society of America Bulletin, v. 113, p. 196-221.
Cole, R.B., and Stanley, R.G., 1995, Middle Tertiary extension recorded by lacustrine fan-delta deposits, Plush Ranch basin, western Transverse Ranges, California: Journal of Sedimentary Research, v. B65, p. 455-468.
Howard, J.L., and Lowry, W.D., 1995, Medial Cenozoic paleogeography of the Los Angeles area, southwestern California, and adjacent parts of the United States, in Fritsche, A.E., ed., Cenozoic paleogeography of the western United States--II: Pacific Section, SEPM (Society for Sedimentary Geology), Book 75, p. 22-41.
Minor, S.A., Kellogg, K.S., Stanley, R.G., Stone, P., Powell, C.L., II, Gurrola, L.D., Selting, A.J., and Brandt, T.R., 2002, Preliminary geologic map of the Santa Barbara coastal plain area, Santa Barbara County, California: U.S. Geological Survey Open-file Report 02-136, scale 1:24,000, 21 p.
Counties Kern - Los Angeles - Monterey - Orange - Riverside - San Luis Obispo - Santa Barbara - Santa Cruz - Ventura