Usage:
No current usage.
(†Maricopa Shale (CA) is synonym of Monterey Shale. See Monterey.)
Geologic age:
Miocene, middle
Type section, locality, area and/or origin of name:
Type section: south of Pioneer, in secs. 13 and 24, T. 11 N., R. 24 W., Kern Co., CA (Pack, 1920).
AAPG geologic province:
California Coast Ranges province
San Joaquin basin
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 ([ ]).