Usage:
Whiterock Bluff Shale Member of Monterey Shale (CA*)
Whiterock Bluff Shale Member of Monterey Formation (CA)
Whiterock Bluff Shale Member of Santa Margarita Formation (CA)
Geologic age:
Miocene, middle*
Type section, locality, area and/or origin of name:
Type area: Whiterock Bluff, in sec. 25, T. 11 N., R. 28 W., Caliente Mountain 15-min quadrangle, San Luis Obispo Co., CA (English, 1916; Hill and others, 1958).
AAPG geologic province:
California Coast Ranges province*
Transverse 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 ([ ]).