Usage:
Prairie Mountain Formation of Jackfork Group (OK*)
Subunits:
Prairie Hollow Member (OK).
Geologic age:
Pennsylvanian, Early*
Morrowan*
Type section, locality, area and/or origin of name:
In center sec. 25, T. 1 S., R. 12 E., Atoka Co., OK (Harlton, 1938).
AAPG geologic province:
Ouachita folded belt*
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 ([ ]).