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 published by U.S. Geological Survey authors.
"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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).