Usage:
Avenal Sandstone (CA*)
Avenal Formation (CA)
Geologic age:
early Tertiary (Eocene)*
Type section, locality, area and/or origin of name:
Type section: in Big Tar Canyon [in sec. 18, T. 23 S., R. 17 E., Garza 7.5-min quadrangle, King Co., southern CA]. Named from Avenal wells at Tar Springs [in E/2 E/2 sec. 18, T. 23 S., R. 17 E., Diablo Range, Garza 7.5-min quadrangle, King Co., southern CA] (Anderson, 1905; Addicott, 1972).
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 ([ ]).