Usage:
Eskridge Shale of Council Grove Group (KS*,NE*,OK*)
Eskridge Shale of Oscar Group (OK)
Geologic age:
early Permian (Wolfcampian)*
Type section, locality, area and/or origin of name:
Named from exposures near Eskridge, Wabaunsee Co., eastern KS (Beede, 1902).
Type locality: vicinity of Eskridge, Wabaunsee Co., eastern KS. Probable type section: about 1 and one-eighth mi south of Eskridge, in SW/4 NW/4 NW/4 sec. 17, T. 14 S., R. 12 E., where upper half of shale is exposed (Mudge and Burton, 1959).
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 ([ ]).