Cenozoic (Tertiary) granitic rocks, unit 2 (Catalina Island)

Cenozoic (Tertiary) granitic rocks--quartz monzonite, quartz latite, and minor monzonite, granodiorite, and granite; found in the Kingston, Panamint, Amargosa, and Greenwater Ranges in southeastern California.
State California
Name Cenozoic (Tertiary) granitic rocks, unit 2 (Catalina Island)
Geologic age early Miocene
Lithologic constituents
Major
Igneous > Plutonic > Dioritic > Quartz-diorite (Pluton)Porphyritic hornblende quartz diorite
Comments Quartz diorite pluton of early Miocene age (19 Ma) on Santa Catalina Island
Stratigraphic units Catalina Island pluton
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.

Jennings, C.W., 1962, Geologic map of California, Olaf P. Jenkins edition, Long Beach sheet, scale 1:250,000.

Rowland, S.M., 1984, Geology of Santa Catalina Island: California Geology, v. 37, no. 11, p. 239-251.

Forman, J.A., 1970, Age of the Catalina Island pluton, California, in Bandy, O.L., ed., Radiometric dating and paleontologic zonation: Geological Society of America Special Paper 124, p. 37-45.

NGMDB product
Counties Los Angeles