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