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National Geologic Map Database

Geologic Unit: Pool Creek

Usage:

Pool Creek Member of Carlile Shale (MT*,SD*,WY*)


Geologic age:

Late Cretaceous (Turonian)*


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

Near point at which Highway 85 crosses head of Pool Creek, 5 mi north of Belle Fourche, in NW/4 sec. 14, T. 9 N., R. 2 E., Butte Co., SD. Origin of name not stated by authors, but probably named from Pool Creek (Knechtel and Patterson, 1962).


AAPG geologic province:

Powder River basin*
Williston 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 ([ ]).