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National Geologic Map Database

Geologic Unit: Jester

Usage:

Jester Dolomite Member of Blaine Formation of El Reno Group (OK*)
Jester Dolomite Bed of Elm Fork Member of Blaine Formation of El Reno Group (OK)


Geologic age:

Early Permian (Cisuralian; Leonardian)*


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

Notable exposures where road from Jester crosses the heavy gypsums, in SE corner sec. 25, T. 7 N., R. 24 W., [Plainview 7.5-min quadrangle], Greer Co., southwestern OK (Suffel, 1930).
Type locality stated to be in SE/4 sec. 26, T. 7 N., R. 24 W., [Plainview 7.5-min quadrangle], Greer Co., OK (Johnson, 1990).


AAPG geologic province:

Anadarko basin*
Palo Duro basin*
South Oklahoma folded belt*


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 ([ ]).