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National Geologic Map Database

Geologic Unit: Talladega

Usage:

Talladega Group (AL*)
Talladega Slate (AL*,GA*,NC,TN)
Talladega Formation (AL,GA,NC,TN)


Subunits:

GROUP STATUS: Lay Dam Formation and its Cheaha Quartzite Member (AL*), Butting Ram Sandstone (AL*), Jemison Chert (AL*).
FORMATION STATUS: Cheaha Sandstone Member (GA*).


Geologic age:

Paleozoic, middle*
Devonian, Early(?)*
Devonian, Middle(?)*


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

Talladega Creek, Talladega Co., AL (Smith, 1888).


AAPG geologic province:

Piedmont-Blue Ridge province*


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 ([ ]).