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National Geologic Map Database

Geologic Unit: Blue Rapids

Usage:

Blue Rapids Shale of Council Grove Group (KS*,NE*,OK)
Blue Rapids Shale of Oscar Group (OK)


Geologic age:

Early Permian (Wolfcampian)*


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

Type locality: in cuts of Highway 77, about 1.5 mi north of Blue Rapids, Marshall Co., eastern KS. Named from town of Blue Rapids, Marshall Co., eastern KS (Condra and Upp, 1931).


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 ([ ]).