Usage:
Chinquapin Metabasalt Member of South Fork Mountain Schist (CA*)
Geologic age:
Early Cretaceous* (metamorphic age)
Type section, locality, area and/or origin of name:
Chinquapin Butte, in sec. 21, T. 28 N., R. 8 E., and sec. 18, T. 28 N., R. 12 W., in southeast corner of Pickett Peak 15-min quadrangle, Trinity Co., northern CA. Origin of name not stated by authors, but probably named from Chinquapin Butte (Blake and others, 1967).
AAPG geologic province:
California Coast 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 ([ ]).