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National Geologic Map Database

Geologic Unit: Pennington

Usage:

Pennington Formation (AL*,KY*,TN*,VA*)
Pennington Group (KY,VA*,WV)
Pennington Shale (AL*,GA*,KY*,TN*,VA*)


Subunits:

GROUP STATUS (alphabetical): Bluefield Formation (KY), Bluestone Formation (KY,VA*), Hinton Formation (KY,VA*), Princeton Sandstone (KY,VA*,WV).
FORMATION STATUS (alphabetical): Little Stone Gap Member (KY*), Pinnacle Overlook Member (KY), Stony Gap Sandstone Member (KY*,VA).


Geologic age:

Middle Mississippian to Early Pennsylvanian*


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

Pennington Gap, Lee County, VA (Campbell, 1893).


AAPG geologic province:

Appalachian 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 ([ ]).