State | California |
---|---|
Name | Mesozoic granitic rocks, unit 1 (Salinian Block) |
Geologic age | Early to Late Cretaceous |
Lithologic constituents |
Major
Igneous > Plutonic > Granitic > Granodiorite (Pluton)
Igneous > Plutonic > Syenitic > Quartz-monzonite (Pluton)
Minor
Igneous > Plutonic > Granitic > Tonalite (Pluton)
Igneous > Plutonic > Dioritic > Quartz-diorite (Pluton)
Incidental
Igneous > Plutonic > Granitic > Leucocratic-granitic > Alaskite (Dike or sill)
Igneous > Plutonic > Gabbroic > Gabbro (Pluton)
Igneous > Plutonic > Granitic > Granite (Pluton)
|
Comments | Salinian terrane, west-central California. Granitic rocks of varied composition and with emplacement ages of about 75 to 120 Ma |
Stratigraphic units | Bodega Diorite, Santa Lucia Quartz Diorite |
References | Jennings, C.W., Strand, R.G., Rogers, T.H., Boylan, R.T., Moar, R.R., and Switzer, R.A., 1977, Geologic Map of California: California Division of Mines and Geology, Geologic Data Map 2, 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.Jennings, C.W., and Burnett, J.L., 1961, Geologic map of California, Olaf P. Jenkins edition, San Francisco sheet, scale 1:250,000.Rogers, T.H., 1966, Geologic map of California, Olaf P. Jenkins edition, San Jose 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.Jennings, C.W., and Strand, R.G., 1959, Geologic map of California, Olaf P. Jenkins edition, Santa Cruz sheet, scale 1:250,000.Koenig, J.B., 1963, Geologic map of California, Olaf P. Jenkins edition, Santa Rosa sheet, scale 1:250,000.Wagner, D.L., Bortugno, E.J., and McJunkin, R.D., 1990, Geologic map of the San Francisco-San Jose quadrangle, California: California Division of Mines and Geology, Regional Geologic Map Series, Map 5A, scale 1:250,000.Wagner, D.L., and Bortugno, E.J., 1982, Geologic map of the Santa Rosa quadrangle, California: California Division of Mines and Geology, Regional Geologic Map Series, Map 2A, scale 1:250,000.Blake, M.C., Jr., Graymer, R.W., and Stamski, R.E., 2002, Geologic map and map database of western Sonoma, northernmost Marin, and southernmost Mendocino Counties, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-2402, 43 p., scale 1:100,000.https://pubs.er.usgs.gov/publication/mf2402 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.https://pubs.er.usgs.gov/publication/mf2332 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.https://pubs.er.usgs.gov/publication/mf357 Ross, D.C., 1976, Reconnaissance geologic map of pre-Cenozoic basement rocks, northern Santa Lucia Range, Monterey County, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-750, 7 p., scale 1:125,000.https://pubs.er.usgs.gov/publication/mf750 Page, B.M., 1981, The southern Coast Ranges, in Ernst, W.G., ed., The geotectonic development of California (Rubey Volume 1): Englewood Cliffs, N.J., Prentice-Hall, p. 329-417.James, E.W., and Mattinson, J.M., 1988, Metamorphic history of the Salinian block: an isotopic reconnaissance, in Ernst, W.G., ed., Metamorphism and crustal evolution of the western United States (Rubey Volume 7): Englewood Cliffs, N.J., Prentice-Hall, p. 938-952.Ross, D.C., and McCulloch, D.S., 1979, Cross section of the southern Coast Ranges and San Joaquin Valley from offshore Point Sur to Madera, California: Geological Society of America Map and Chart Series, MC-28H, 4 p., scale 1:250,000.Clark, J.C., and Brabb, E.E., 1997, Geology of the Point Reyes National Seashore and vicinity, Marin County, California: A digital database: U.S. Geological Survey Open-file Report 97-456, scale 1:48,000.https://pubs.er.usgs.gov/publication/ofr97456 Kistler, R.W., and Champion, D.E., 2001, Rb-Sr whole-rock and mineral ages, K-Ar, 40Ar/39Ar, and U-Pb mineral ages, and strontium, lead, neodymium, and oxygen isotopic compositions for granitic rocks from the Salinian composite terrane, California: U.S. Geological Survey Open-File Report 01-453, 84 p.https://pubs.er.usgs.gov/publication/ofr01453 Mattinson, J.M., and James, E.W., 1985, Salinian block U/Pb age and isotopic variations: Implications for origin and emplacement of the Salinian terrane, in Howell, D.G., ed., Tectonostratigraphic terranes of the circum-Pacific region: Houston, Tex., Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, Number 1, p. 215-226. |
NGMDB product | |
Counties | Fresno - Marin - Monterey - San Benito - San Francisco - San Luis Obispo - San Mateo - Santa Cruz - Sonoma |