Devonian marine rocks, unit 2 (Eastern Klamath Mountains)

Limestone and dolomite, sandstone and shale; in part tuffaceous
State California
Name Devonian marine rocks, unit 2 (Eastern Klamath Mountains)
Geologic age Devonian
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)Chiefly black siliceous shale; primary component of Kennett Fm.
Sedimentary > Clastic > Mixed-clastic > Siltstone-mudstone (Bed)
Minor
Igneous > Volcanic (Pyroclastic-tuff)Includes tuff, coarse pyroclastic rocks, and flow breccia. Mostly keratophyre and quartz keratophyre
Sedimentary > Clastic > Sandstone (Bed, Tuffaceous)In part tuffaceous
Incidental
Sedimentary > Carbonate > Limestone (Bed)Contains minor chert
Comments Eastern Klamath Mountains. Composed mainly of black siliceous shale and pyroclastic rocks (Kennett Fm.) and laminated siltstone and shale (part of Gazelle Fm.)
Stratigraphic units Kennett Fm., Gazelle Fm. (upper part)
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.

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

Strand, R.G., 1964, Geologic map of California, Olaf P. Jenkins edition, Weed sheet, scale 1:250,000.

Wagner, D.L., and Saucedo, G.J., 1987, Geologic map of the Weed quadrangle, California: California Division of Mines and Geology, Regional Geologic Map Series, Map 4A, 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

Potter, A.W., Hotz, P.E., and Rohr, D.M., 1977, Stratigraphy and inferred tectonic framework of lower Paleozoic rocks in the eastern Klamath Mountains, northern California, in Stewart, J.H., Stevens, C.H., and Fritsche, A.E., eds., Paleozoic paleogeography of the western United States: Society of Economic Paleontologists and Mineralogists, Pacific Section, Pacific Coast Paleogeography Symposium 1, p. 421-440.

Irwin, W.P., 1977, Review of Paleozoic rocks of the Klamath Mountains, in Stewart, J.H., Stevens, C.H., and Fritsche, A.E., eds., Paleozoic paleogeography of the western United States: Society of Economic Paleontologists and Mineralogists, Pacific Section, Pacific Coast Paleogeography Symposium 1, p. 441-454.

Potter, A.W., and others, 1990, Early Paleozoic stratigraphic, paleogeographic, and biogeographic relations of the eastern Klamath belt, northern California, in Harwood, D.S., and Miller, M.M., eds., Paleozoic and early Mesozoic paleogeographic relations; Sierra Nevada, Klamath Mountains, and related terranes: Geological Society of America Special Paper 255, p. 57-74.

Miller, M.M., and Harwood, D.S., 1990, Paleogeographic setting of upper Paleozoic rocks in the northern Sierra and eastern Klamath terranes, northern California, in Harwood, D.S., and Miller, M.M., eds., Paleozoic and early Mesozoic paleogeographic relations; Sierra Nevada, Klamath Mountains, and related terranes: Geological Society of America Special Paper 255, p. 175-192.

Albers, J.P., and Robertson, J.F., 1961, Geology and ore deposits of East Shasta copper-zinc district, Shasta County, California: U.S. Geological Professional Paper 338, 107 p., scale 1:24,000.

https://pubs.er.usgs.gov/publication/pp338

NGMDB product
Counties Shasta - Siskiyou