Usage:
North Twistwood Creek Clay Member of Yazoo Clay of Jackson Group (AL,MS)
North Twistwood Creek Member of Yazoo Formation of Jackson Group (AL*,MS*)
Originally called North Creek.
Geologic age:
early Tertiary (late Eocene)*
Type section, locality, area and/or origin of name:
Type section: on west side of North Twistwood Creek, 2 mi southwest of Rose Hill along State Highway [18] to Gridley and Turnersville, in SW/4 sec. 1, T. 3 N., R. 12 E., [approx. Lat. 32 deg. 07 min. 45 sec. N., Long. 89 deg. 01 min. 30 sec. W., Hero 7.5-min quadrangle], Jasper Co., eastern MS (Murray, 1947, 1963).
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 ([ ]).