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National Geologic Map Database

Geologic Unit: Brewer

Usage:

Brewer Phyllite (AL*)
Brewer Phyllite of Kahatchee Mountain Group (AL*)
Brewer Formation of Kahatchee Mountain Group (AL)


Subunits:

Sawyer Limestone Member (AL).


Geologic age:

Precambrian and Early Cambrian(?)*


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

Named from exposures at Brewer School, Columbiana quadrangle, Chilton Co., northeastern AL (Butts, 1940).


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 ([ ]).