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National Geologic Map Database

Geologic Unit: Duchesne River

Usage:

Duchesne River Formation (CO*,UT*)
Originally called Duchesne.


Subunits:

(alphabetical) --all in UT*: Brennan Basin Member, Dry Gulch Creek Member, Lapoint Member, Starr Flat Member.


Geologic age:

Eocene and Oligocene*


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

First described along Duchesne River, Duchesne Co., UT (Peterson, 1932; Kay, 1934).


AAPG geologic province:

Uinta basin*
Piceance 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 ([ ]).