Mesozoic granitic rocks, unit 4 (Klamath Mountains and Northern Sierra Nevada)

Mesozoic granite, quartz monzonite, granodiorite, and quartz diorite
State California
Name Mesozoic granitic rocks, unit 4 (Klamath Mountains and Northern Sierra Nevada)
Geologic age Devonian
Lithologic constituents
Major
Igneous > Plutonic > Granitic > Granodiorite (Pluton)
Igneous > Plutonic > Granitic > Tonalite > Trondhjemite (Pluton)
Minor
Igneous > Plutonic > Granitic > Granite (Pluton)
Incidental
Igneous > Plutonic > Dioritic > Quartz-diorite (Pluton)
Comments Plutons of Devonian age in northern Sierra Nevada and eastern Klamath Mts. Mostly granodiorite and trondhjemite coeval with associated island-arc volcanic rocks. Presumed to be Mesozoic at time of compilation of State geologic map
Stratigraphic units Bowman Lake Batholith, Wolf Creek Stock, Mule Mountain Stock
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.

Burnett, J.L., and Jennings, C.W., 1962, Geologic map of California, Olaf P. Jenkins edition, Chico sheet, scale 1:250,000.

Strand, R.G., 1962, Geologic map of California, Olaf P. Jenkins edition, Redding sheet, scale 1:250,000.

Saucedo, G.J., and Wagner, D.L., 1992, Geologic map of the Chico quadrangle, California: California Division of Mines and Geology, Regional Geologic Map Series, Map 7A, scale 1:250,000.

Fraticelli, L.A., Albers, J.P., Irwin, W.P., and Blake, M.C., Jr., 1987, Geologic map of the Redding 1 X 2 degree quadrangle, Shasta, Tehama, Humboldt, and Trinity Counties, California: U.S. Geological Survey Open-File Report 87-257, scale 1:250,000.

https://pubs.er.usgs.gov/publication/ofr87257

Irwin, W.P., 1994, Geologic map of the Klamath Mountains, California and Oregon: U.S. Geological Survey Miscellaneous Investigations Series Map I-2148, scale 1:500,000.

https://pubs.er.usgs.gov/publication/i2148

Harwood, D.S., 1992, Stratigraphy of Paleozoic and lower Mesozoic rocks in the Northern Sierra Terrane, California: U.S. Geological Survey Bulletin 1957, 78 p., scale 1:250,000.

https://pubs.er.usgs.gov/publication/b1957

Albers, J.P., Kistler, R.W., and Kwak, L., 1981, The Mule Mountain stock, an early Middle Devonian pluton in northern California: Isochron/West, v. 31, p. 17.

Isotopic age constraints on middle Paleozoic deformation in the northern Sierra Nevada, California: Geology, v. 15, p. 757-760.

Hanson, R.E., Saleeby, J.B., and Schweickert, R.A., 1988, Composite Devonian island-arc batholith in the northern Sierra Nevada, California: Geological Society of America Bulletin, v. 100, p. 446-457.

NGMDB product
Counties Nevada - Plumas - Shasta - Sierra