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National Geologic Map Database

NGMDB

Geologic Unit: Tuscaloosa

Usage:

Tuscaloosa Formation (AL*,AR,FL*,GA*,IL,KY*,LA*,MS*,TN*)
Tuscaloosa Group (AL*,LA,MS*)
Tuscaloosa Gravel (TN*)
"Tuscaloosa Formation" of Oconee Group (GA)


Subunits:

GROUP STATUS (alphabetical): Coker Formation (AL*,MS*), Eagle Ford Formation (LA-local), Gordo Formation (AL*,GA*,MS*), Pepper Shale (LA-local).


Geologic age:

Late Cretaceous*


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

Named from Tuscaloosa, Tuscaloosa Co., AL, and Tuscaloosa (Black Warrior) River at Steele's Bluff and White's Bluff, Hale Co., AL (Smith and Johnson,1887).


AAPG geologic province:

Black Warrior basin*
Mid-Gulf Coast basin*
Gulf Coast basin*
South Georgia sedimentary province*
Florida platform*
Upper Mississippi embayment*
Illinois basin


NGMDB

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 ([ ]).

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Page Last Modified: Tue Jun 3 16:32:43 2014