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National Geologic Map Database

Geologic Unit: Clay Creek

Usage:

Clay Creek Limestone Member of Kanwaka Shale of Shawnee Group (IA,KS*,NE)
Clay Creek Limestone Member of Kanwaka Formation of Shawnee Group (MO)


Geologic age:

Late Pennsylvanian (Virgilian)*


Type section, locality, area and/or origin of name:

Type locality: Clay Creek, approx. 1 mi west of Atchison, Atchison Co., northeastern KS. Persistent as far southward as Osage Co., KS (Moore, 1936).


AAPG geologic province:

Forest City basin*
Nemaha anticline


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).