Usage:
Garrison Shale of Oscar Group (OK)
(†Garrison Shale of Council Grove Group (KS,NE) abandoned. Rocks reallocated to several formations of Council Grove Group. See Council Grove.)
Geologic age:
early Permian (Wolfcampian)*
Type section, locality, area and/or origin of name:
Named from exposures at Garrison, Pottawatomie Co., KS (Prosser, 1902).
AAPG geologic province:
Chautauqua platform
Forest City basin
Nemaha anticline
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 ([ ]).