Usage:
Coal Bluff Marl Member of Naheola Formation of Midway Group (AL*,MS*)
Geologic age:
early Tertiary (Paleocene; latest Midwayan Provincial Age)*
Type section, locality, area and/or origin of name:
Named from exposures on Alabama River at Coal Bluff, on west side of river in SE/4 sec. 7, T. 11 N., R. 7 E., [Coy 7.5-min quadrangle], Wilcox Co., southern AL (US geologic names lexicons, USGS Bull. 896, 1200).
[There is a Coal Bluff Landing along west bank of river in center of W/2 sec. 17, T. 11 N., R. 7 E., Lat. 31 deg. 55 min. 36 sec. N., Long. 87 deg. 23 min. 45 sec. W., Coy 7.5-min quadrangle, Wilcox Co., southern AL (USGS GNIS database, Alabama Maps, alabamamaps.ua.edu, and USGS historical topographic map collection TopoView).]
AAPG geologic province:
Mid-Gulf Coast 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 ([ ]).