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National Geologic Map Database

Geologic Unit: Overbrook

Usage:

Overbrook Sandstone Member of Springer Formation of Noble Ranch Group (OK)
Overbrook Sandstone of Springer Group (OK*-recognized locally in southern Arbuckle Mountains)


Geologic age:

Late Mississippian (Serpukhovian; Namurian A; Chesterian)*


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

Named from outcrop across middle of N/2 sec. 6, T. 6 S., R. 2 E., 0.25 mi east of village of Overbrook, at north edge of Love Co., Ardmore basin, central southern OK (Tomlinson, 1929).


AAPG geologic province:

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 ([ ]).