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National Geologic Map Database

Geologic Unit: Chinquapin

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