| State | California |
|---|---|
| Name | Paleozoic marine rocks, undivided, unit 6 (Northwestern Sierra Nevada) |
| Geologic age | Permian(?) to Jurassic(?) |
| Lithologic constituents |
Major
Metamorphic > Metasedimentary > Metaclastic > Argillite
Metamorphic > Metasedimentary > Metaclastic > Phyllite
Minor
Sedimentary > Chemical > Chert (Bed)
Metamorphic > Metasedimentary > Metaclastic > Slate
Incidental
Metamorphic > Metasedimentary > Metacarbonate > Marble
Metamorphic > Metaigneous > Greenstone
Sedimentary > Clastic > Sandstone (Bed)
|
| Comments | Northwestern Sierra Nevada, west of Melones fault. Sedimentary and metasedimentary rocks, primarily argillite, phyllite, and chert |
| Stratigraphic units | Calaveras Complex (part), Clipper Gap Fm., Horseshoe Bend 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.Edelman, S.H., Day, H.W., Moores, E.M., Zigan, S.M., Murphy, T.P., and Hacker, B.R., 1989, Structure across a Mesozoic ocean-continent suture zone in the northern Sierra Nevada, California: Geological Society of America Special Paper 224, 56 p.Silberling, N.J., Jones, D.L., Blake, M.C., Jr., and Howell, D.G., 1987, Lithotectonic terrane map of the western conterminous United States: U.S. Geological Survey Miscellaneous Field Studies Map MF-1874-C, scale 1:2,500,000.https://pubs.er.usgs.gov/publication/mf1874C 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.Hietanen, A., 1981, The Feather River area as a part of the Sierra Nevada suture system in California: U.S. Geological Survey Professional Paper 1226-B, 13 p.https://pubs.er.usgs.gov/publication/pp1226AC |
| NGMDB product | |
| Counties | Butte - Nevada - Placer - Plumas - Sierra - Yuba |