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National Geologic Map Database

Geologic Unit: Wreford

Usage:

Wreford Limestone of Chase Group (KS*,NE,OK*)
Wreford Limestone of Oscar Group (OK)


Subunits:

(alphabetical): Fourmile Member (KS,NE,OK), Havensville Shale Member (KS*,NE*,OK), Schroyer Member (KS*,NE,OK), Threemile Member (KS*,OK).


Geologic age:

Permian, Early*


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

Named from occurrence at Wreford, Geary Co., eastern KS, where it has been quarried and burned for lime (Hay, 1893).


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 ([ ]).