Mesozoic granitic rocks, unit 1 (Salinian Block)

Mesozoic granite, quartz monzonite, granodiorite, and quartz diorite
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