Usage:
Sevier Shale (GA,TN*,VA*)
Sevier Formation (GA,TN*)
Sevier Formation of Chickamauga Group (TN)
Subunits:
(alphabetical) --all in TN*: Bacon Bend Member, Meadow Marble Member.
Geologic age:
Late Ordovician (Whiterockian to Mohawkian; late Chazyan to Turinian)*
Type section, locality, area and/or origin of name:
Type area: Sevier Co., eastern TN (US geologic names lexicon, USGS Bull. 896).
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 ([ ]).