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National Geologic Map Database

Geologic Unit: Blue Springs

Usage:

Blue Springs Member of Matfield Shale of Chase Group (KS*,NE*)
Blue Springs Shale of Chase Group (KS,NE)
Blue Springs Shale of Oscar Group (OK)


Subunits:

Bruno Limestone [Bed] (KS,NE).


Geologic age:

Early Permian (Cisuralian; Wolfcampian)


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

Type locality: in foot of Blue River bluffs southeast of Blue Springs, Gage Co., southeastern NE (Condra and Upp, 1931).


AAPG geologic province:

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 ([ ]).