Usage:
Calabasas Formation of Topanga Group (CA*)
Calabasas Formation (CA)
Subunits:
(alphabetical) --all in CA*: Dry Canyon Sandstone Member, Escondido Canyon Shale Member, Latigo Canyon Breccia Member, Mesa Peak Breccia Member, Newell Sandstone Member, Stokes Canyon Breccia Member.
Geologic age:
late Tertiary (middle Miocene)*
Type section, locality, area and/or origin of name:
Type locality: exposures in Stokes Canyon, in sec. 3, T. 1 S., R. 17 W., 3 km west of Calabasas Peak, Santa Monica Mountains, north-central Malibu Beach quadrangle, Los Angeles Co., CA (Yerkes and Campbell, 1979).
AAPG geologic province:
Los Angeles 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 ([ ]).