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National Geologic Map Database

Geologic Unit: Walker

Usage:

Walker Formation (CA*)


Geologic age:

Miocene
Oligocene
Eocene


Type section, locality, area and/or origin of name:

Origin of name not stated; no indication of whether or not exposed. Study area in Kern Co., southern CA (Wilhelm and Saunders, 1927).
Type section: along southeast bank of Walker Basin Creek, 1 to 2 mi northeast of Bena, Breckenridge Mountain quadrangle, Kern Co., southern CA (Dibblee and Chesterman, 1953).


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).