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National Geologic Map Database

Geologic Unit: Wiggins

Usage:

Wiggins Formation (WY)
Wiggins Formation of Thorofare Creek Group of Absaroka Volcanic Supergroup (WY*)


Subunits:

(alphabetical) --all in WY: Beaver Divide Conglomerate Member, [†?]Blue Point Member*, Crosby Breccia Member.


Geologic age:

early Tertiary (Eocene)*


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

Named from Wiggins River, in southwest part of T. 41 and 42 N., R. 105 and 106 W., Fremont Co., WY (Love, 1939).


AAPG geologic province:

Bighorn basin*
Wind River basin*
Yellowstone 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 ([ ]).