Usage:
La Jolla Group (CA*)
Subunits:
(alphabetical) --all in CA: Ardath Shale*, Delmar Formation* or Delmar Sand, Friars Formation*, Mount Soledad Formation*, Scripps Formation*, Torrey Sandstone*.
Geologic age:
Tertiary
Eocene, early(?)* to Eocene, middle*
Type section, locality, area and/or origin of name:
Not synopsized to date. Named from exposures in La Jolla 15-min quadrangle, San Diego Co., CA (Hanna, 1926; Kennedy and Moore, 1971).
AAPG geologic province:
Peninsular 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 ([ ]).