Triassic marine rocks, unit 3 (Lake Almanor)

Shale, conglomerate, limestone and dolomite, sandstone, slate, hornfels, quartzite; minor pyroclastic rocks
State California
Name Triassic marine rocks, unit 3 (Lake Almanor)
Geologic age Permian to Jurassic
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > SlateIn part tuffaceous
Minor
Sedimentary > Clastic > Sandstone (Bed)Volcaniclastic
Incidental
Metamorphic > Metasedimentary > Metaclastic > Argillite
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Conglomerate (Bed)
Comments Northern Sierra Nevada. Slate, volcaniclastic sandstone, limestone, and conglomerate
Stratigraphic units Cedar Fm.
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.

Lydon, P.A., Gay, T.E., Jr., and Jennings, C.W., 1960, Geologic map of California, Olaf P. Jenkins edition, Westwood sheet, scale 1:250,000.

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

NGMDB product
Counties Plumas