Usage:
No current usage?
(†/Williams Sand Member of Antelope Formation (CA) or †/Williams Sand Bed of Antelope Member of Monterey Formation (CA) abandoned? Antelope Member (or Antelope Formation) now Antelope unit (informal) of McClure Shale Member of Monterey Formation.)
[Preoccupied. Name previously applied to Williams Formation of Popenoe (1942), also in CA.]
Geologic age:
Miocene, late
Type section, locality, area and/or origin of name:
Outcrops in secs. 28, 33, 34, and 35, T. 32 S., R. 23 E., M.D., Midway Sunset field, southeast edge of San Joaquin Valley, southern CA (Callaway, 1962).
AAPG geologic 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 ([ ]).