Usage:
Stanislaus Group (CA*,NV*)
Stanislaus Formation (CA,NV)
Subunits:
GROUP STATUS (alphabetical) --all in CA*,NV*: Dardanelles Formation, Eureka Valley Tuff, Table Mountain Latite.
FORMATION STATUS (alphabetical): Dardanelles Member (CA), Eureka Valley Member (CA,NV), Table Mountain Latite Member (CA).
Geologic age:
Tertiary
Miocene, late*
Type section, locality, area and/or origin of name:
Exposures on ridge of Bald Peak-Red Peak which separates Clarks Fork and Deadman Creek branches of Middle Fork of Stanislaus River, Dardanelles Cone and Sonora Pass 15-min quadrangles, Toulumne Co., CA (Slemmons, 1966).
AAPG geologic province:
Sierra Nevada 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 ([ ]).