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Quaternary volcanic flow rocks, unit 4 (Sutter Buttes)

Quaternary volcanic flow rocks; minor pyroclastic deposits; in part Pliocene and Miocene.
StateCalifornia
NameQuaternary volcanic flow rocks, unit 4 (Sutter Buttes)
Geologic ageQuaternary (1.5-2.5 Ma)
Original map labelQv
Primary rock typerhyolite
Secondary rock typeandesite
Other rock typesdacite; volcanic breccia (agglomerate)
Lithologic constituents
Minor
Igneous > Volcanic > Mafic-volcanic > Andesite (Flow)
Igneous > Volcanic > Mafic-volcanic > Andesite (Dome)
Igneous > Volcanic > Felsic-volcanic > Dacite (Dome)
Igneous > Volcanic > Felsic-volcanic > Dacite (Flow)
Igneous > Volcanic > Felsic-volcanic > Rhyolite (Flow)
Igneous > Volcanic > Felsic-volcanic > Rhyolite (Dome)
Map references
Jennings, C.W., Strand, R.G., and Rogers, T.H., 1977, Geologic map of California: California Division of Mines and Geology, scale 1:750,000.
Unit references
Luedke, R.G., and Smith, R.L., 1981, Map showing distribution, composition, and age of late Cenozoic volcanic centers in California and Nevada: U.S. Geological Survey Miscellaneous Investigations Series Map I-1091-C, scale 1:1,000,000.
Hausback, B.P. and Nilsen, T.H., 1999, Sutter Buttes: California Division of Mines and Geology Special Publication, v. 119, p. 246-254.
Jennings, C.W., Strand, R.G., and Rogers, T.H., 1977, Geologic map of California: California Division of Mines and Geology, scale 1:750,000.
Geographic coverageSutter

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