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National Geologic Map Database

Geologic Unit: Coker

Usage:

Coker Formation of Tuscaloosa Group (AL*,LA,MS*)


Subunits:

Eoline Member (AL*)


Geologic age:

Late Cretaceous (Cenomanian to Turonian)*


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

Type locality: section on road from Spring Hill School, in secs. 21 and 22, T. 21 S., R. 11 W., 3 mi south of Coker, Tuscaloosa Co., west-central AL (Conant and Monroe, 1945).


AAPG geologic province:

Black Warrior basin*
Mid-Gulf Coast basin*
Arkla basin
Gulf Coast basin


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 ([ ]).