Brush Creek Limestone Member of Conemaugh Formation (KY*,MD,PA*,WV*)
Brush Creek Limestone Member of Glenshaw Formation (PA,WV)
Brush Creek limestone (informal, unranked) in Conemaugh Group (OH)
For informal, unranked usage, the lithologic term should not be capitalized.
Late Pennsylvanian*
Brush Creek, Cranberry Twp., Butler Co., PA (White, 1878).
Appalachian 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 ([ ]).