Usage:
Quatal Formation (CA*)
Geologic age:
late Tertiary (Pliocene)*
Type section, locality, area and/or origin of name:
Type locality: Ballinger Canyon, Ballinger Canyon 7.5-min quadrangle, Santa Barbara and Ventura Cos., southern CA. Named from exposures in Quatal Canyon, Apache Canyon and Cuyama Peak 7.5-min quadrangles, Santa Barbara and Ventura Cos., southern CA (VerPlanck, 1952; Hill and others, 1958).
AAPG geologic province:
Ventura 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 ([ ]).