Usage:
Tuna Canyon Formation (CA*)
Geologic age:
Late Cretaceous*
Type section, locality, area and/or origin of name:
Tuna Canyon, Santa Monica Mountains, in sec. 30, T. 1 S., R. 16 W., west-central Topanga quadrangle, Los Angeles Co., CA (Yerkes and Campbell, 1979).
AAPG geologic 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 ([ ]).