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National Geologic Map Database

Geologic Unit: Nashville

Usage:

Nashville Group (AL*,GA*,TN*)
Nashville Formation of Chickamauga Group (AL*,GA)


Subunits:

GROUP STATUS: Hermitage Formation (AL,GA*,TN*) or Limestone (GA,TN*), Bigby Limestone (TN*), Cannon Limestone (AL,GA*,TN*), and Catheys Formation (GA*,TN*) or Limestone (TN*).
FORMATION STATUS: Hermitage Member (GA), Cannon Member (GA), and Catheys Member (GA).


Geologic age:

Late Ordovician (Mohawkian to Cincinnatian; Chatfieldian to Edenian)*


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

Not designated. Named from Nashville, TN.


AAPG geologic province:

Appalachian basin*
Cincinnati arch*


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 ([ ]).