No current usage.
(Rocks of †Slater Sandstone Member of †Mingo Formation (KY*,TN*) reallocated to Breathitt Formation [or Hyden Formation of Breathitt Group] in KY, and to Graves Gap Formation in TN. See Breathitt, Graves Gap, and Hyden.)
late Early to early Middle Pennsylvanian (late Bashkirian to early Moscovian; Westphalian; latest Morrowan to early Atokan)
Named from Slater Fork of Catron Creek, Bell Co., southeastern KY (US geologic names lexicons, USGS Bull. 896, 1200).
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 ([ ]).