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National Geologic Map Database

Geologic Unit: Diamond A

Usage:

Diamond A Formation (NV)


Geologic age:

Carboniferous


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

Exposures along north side of Bearpaw Mountain (sec. 17 and N/2 sec. 19, T. 47 N., R. 57 E.; SE/4 sec. 24, T. 47 N., R. 56 E.) and along Bruneau River from Rowland, west of hill 5767, northward to McDonald Creek, northeastern NV. Named from Diamond A Desert which lies just northwest of Bearpaw Mountain, Rowland quadrangle, Elko Co., NV (Bushnell, 1967).


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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).