U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Rockcastle

Usage:

Rockcastle Sandstone Member of Bee Rock Sandstone of Breathitt Group (KY)
Rockcastle Sandstone Member of Lee Formation (KY*)
Rockcastle Conglomerate Member of Lee Formation (KY*)
Rockcastle Member of Lee Formation (KY*)
Rockcastle Sandstone Tongue of Lee Formation (KY*)
Rockcastle Conglomerate of Crab Orchard Mountains Group (TN*)
Rockcastle Sandstone (GA*-local)


Geologic age:

Early Pennsylvanian (Bashkirian; Westphalian A; late Morrowan)*


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

Named from exposures along Rockcastle River, [Rockcastle and Laurel Cos.], east-central KY (US geologic names lexicon, USGS Bull. 896).
Type locality: Rockcastle Cove, near Jamestown, Fentress Co., northern TN (see Wilson and others, 1956).


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).