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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).