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National Geologic Map Database

Geologic Unit: Atchison

Usage:

Atchison Formation (KS*,NE*)


Geologic age:

Quaternary (Pleistocene)*


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

Named from exposures in the vicinity of Atchison, Atchison Co., northeastern KS. Not recognized beyond the limits of Kansan glaciation (Moore and others, 1951).
Type locality: exposures in creek bank, in SE/4 SW/4 sec. 2, T. 6 S., R. 20 E., Atchison Co., northeastern KS (Frye and Leonard, 1952).


AAPG geologic province:

Anadarko basin*
Forest City basin*


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 ([ ]).