| 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 |