Quaternary volcanic flow rocks, unit 8 (Peninsular Ranges)

Quaternary volcanic flow rocks; minor pyroclastic deposits; in part Pliocene and Miocene.
State California
Name Quaternary volcanic flow rocks, unit 8 (Peninsular Ranges)
Geologic age Quaternary
Lithologic constituents
Major
Igneous > Volcanic > Mafic-volcanic > Basalt (Flow)
Stratigraphic units Santa Rosa Basalt
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.

https://pubs.er.usgs.gov/publication/i1091C

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.

NGMDB product
Counties Riverside - San Diego