Usage:
Jewell Bluff Formation of Stones River Group (TN)
Geologic age:
late Middle to Late Ordovician (Whiterockian to Mohawkian; Chazyan to Turinian)
Type section, locality, area and/or origin of name:
Type section: exposures in Jewell Bluff on the north side of Hiwassee River across from mouth of Gunstocker Creek, [approx. Lat. 35 deg. 22 min. 09 sec. N., Long. 84 deg. 55 min. 00 sec. W., northeastern corner Birchwood 7.5-min quadrangle], Meigs Co., south-central TN (Wilson, 1979; see also R.L. Wilson, 2017, Tennessee Geol. Survey Geol. Quad. Map, no. 119-SW, scale 1:24,000).
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 ([ ]).