Usage:
Colvin Mountain Sandstone (AL)
Colvin Mountain Sandstone of Chickamauga Group (AL*)
Geologic age:
Late Ordovician (Mohawkian)*
Type section, locality, area and/or origin of name:
[Type locality: excellent exposures along US Hwy 431 in the cut through Colvin Mountain, called Alexander Gap, Glencoe 7.5-min quadrangle, Calhoun Co., northeastern AL] (Drahovzal and Neathery, 1971).
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 ([ ]).