Usage:
Stones River Group (AL,GA*,TN*)
Stones River Formation (northern AL*)
Stones River Group, undivided (subsurface of MS)
Subunits:
GROUP STATUS (alphabetical): Carters Limestone (GA*,TN*), Jewell Bluff Formation (TN), Lebanon Limestone (GA*,TN*), Murfreesboro Limestone (GA*,TN*), Pierce Limestone (TN*), Pond Spring Formation (GA*,TN*), Ridley Limestone (GA*,TN*).
FORMATION STATUS: Deicke K-bentonite Bed (AL*).
Geologic age:
Middle to Late Ordovician (Whiterockian to Mohawkian)*
Type section, locality, area and/or origin of name:
Named from exposures on Stone River, in vicinity Nashville, TN. Although the river is now called Stone River, the name of the deposits is firmly entrenched in the literature as Stones River (US geologic names lexicons, USGS Bull. 896, 1200).
AAPG geologic province:
Appalachian basin*
Black Warrior basin*
Cincinnati arch*
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 ([ ]).