Usage:
Nanafalia Formation of Wilcox Group (AL*,MS*,GA*)
Subunits:
Grampian Hills Member (AL*), Gravel Creek Sand Member (AL*), Gullette Bluff Member (AL*); Fearn Springs Member (MS*)
Geologic age:
early Tertiary (Paleocene)*
Type section, locality, area and/or origin of name:
Exposures at Nanafalia Landing, Tombigbee River, Marengo Co., western AL (Smith and Johnson, 1887).
AAPG geologic province:
Mid-Gulf Coast basin*
Black Warrior basin*
South Georgia sedimentary province*
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 ([ ]).