Triassic marine rocks, unit 5 (Northern Sierra Nevada)

Shale, conglomerate, limestone and dolomite, sandstone, slate, hornfels, quartzite; minor pyroclastic rocks
State California
Name Triassic marine rocks, unit 5 (Northern Sierra Nevada)
Geologic age Middle to Late Triassic
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)
Metamorphic > Metasedimentary > Metaclastic > SlateIn part tuffaceous
Minor
Sedimentary > Clastic > Conglomerate (Bed)
Incidental
Igneous > Volcanic > Mafic-volcanic > Andesite (Pyroclastic-tuff)
Comments Northern Sierra Nevada. Slate, limestone, and conglomerate
Stratigraphic units Hosselkus Limestone, Pit Fm., Swearinger 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.

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.

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

Grose, T.L.T., Saucedo, G.J., and Wagner, D.L., 1990, Geologic map of the Susanville quadrangle, Lassen and Plumas Counties, California: California Division of Mines and Geology, Open-File Report 91-1, 25 p., scale 1:100,000.

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Counties Placer - Plumas