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National Geologic Map Database

Geologic Unit: Bluestone

Usage:

Bluestone Formation (KY*,TN*,VA*,WV*)
Bluestone Formation of Mauch Chunk Group (VA*,WV*)
Bluestone Formation of Pennington Group (KY,VA*)


Subunits:

(alphabetical): Belcher Member (VA,WV), Bent Mountain Member (VA,WV), Bramwell Member (VA*,WV*), Bratton Member (VA,WV), Glady Fork Sandstone Member (VA*,WV), Hunt Member (VA,WV), Mud Fork Member (VA,WV), Pipestem Shale Member (VA,WV), Pride Shale Member (KY,VA*,WV*), Princeton Sandstone Member (WV).


Geologic age:

Late Mississippian to Early Pennsylvanian*


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

Named from Bluestone River, Tazewell Co., southwestern VA (US geologic names lexicons, USGS Bull. 896, 1200).


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 ([ ]).