Usage:
Bear Branch Limestone Member of Olive Hill Formation (TN*)
Bear Branch Limestone Member of Ross Formation (TN)
Bear Branch facies (informal) in Ross Limestone (TN)
For informal usage, the rank or lithologic term should not be capitalized.
Geologic age:
Early Devonian*
Type section, locality, area and/or origin of name:
Named from exposure on Bear Branch, about 2 mi southeast of Olive Hill [Olivehill], Hardin Co., western TN, where it forms low bluff showing 20 feet of low-grade ore resembling Clinton ore (Dunbar, 1918).
AAPG geologic province:
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 ([ ]).