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National Geologic Map Database

Geologic Unit: Hinsdale

Usage:

Hinsdale Formation (CO*,NM*)
Hinsdale Basalt (NM)


Subunits:

(alphabetical) --all in NM: Cisneros Basalt Member, Dorado Basalt Member, Jarita Member, Servilleta Member.


Geologic age:

Tertiary (Oligocene to Pliocene)*


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

Named from exposures in Hinsdale Co., southwestern CO (Cross, 1911).


AAPG geologic province:

Piceance basin*
San Juan basin*
San Juan Mountains province*
San Luis basin*


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 ([ ]).