Usage:
Cuyamaca Gabbro (CA*)
Geologic age:
Early Cretaceous*
Type section, locality, area and/or origin of name:
Named from the three peaks of Cuyamaca Mountains [in T. 13 and 14 S., R. 3 and 4 E., Julian-Cuyamaca area, southeastern part of Ramona quadrangle and northeastern part of Cuyamaca quadrangle], San Diego Co., southern CA (Hudson, 1922).
AAPG geologic province:
Peninsular Ranges province*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).