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National Geologic Map Database

Geologic Unit: Thimble

Usage:

Thimble Limestone Member of Carrara Formation (CA*,NV*)


Geologic age:

Early Cambrian*


Type section, locality, area and/or origin of name:

Exposures on west side of Titanothere Canyon below Thimble Peak, Grapevine Mountains [Thimble Peak 7.5-min quadrangle], Inyo Co., southeastern CA. Named for Thimble Peak (Palmer and Halley, 1979).


AAPG geologic province:

Great Basin 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 ([ ]).