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National Geologic Map Database

Geologic Unit: Mauch Chunk

Usage:

Mauch Chunk Group (VA*,WV*)
Mauch Chunk Formation (MD*,PA*,WV*)


Subunits:

GROUP STATUS (alphabetical): Bluefield Formation (VA*,WV*), Bluestone Formation (VA*,WV*), Hinton Formation (VA*,WV*), Lillydale Shale (WV), Princeton Sandstone (VA*,WV*), Reynolds Limestone (WV), Webster Springs Sandstone (WV).
FORMATION STATUS (alphabetical): Deer Valley Limestone Member (MD,PA), Greenbrier Limestone Member (PA*), Loyalhanna Limestone Member (PA), Nescopeck paleosol (informal) (PA), Reynolds Member (MD), Trough Creek Limestone Member (PA*), Wymps Gap Limestone Member (PA).


Geologic age:

Late Mississippian (Chesterian)*


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

Type locality not stated but commonly assumed to be at Mauch Chunk [now Jim Thorpe], Carbon Co., eastern PA.


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 ([ ]).