U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Tuna Canyon

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