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National Geologic Map Database

Geologic Unit: Jewell Bluff

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