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National Geologic Map Database

Geologic Unit: North Twistwood Creek

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 usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).