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National Geologic Map Database

Geologic Unit: Zilpha

Usage:

Zilpha Shale of Claiborne Group (MS)
Zilpha Clay of Claiborne Group (MS*)


Subunits:

Zama Member (MS).


Geologic age:

early Tertiary (middle Eocene)*


Type section, locality, area and/or origin of name:

Type locality: along county road at Bucksnort Hill, 1.5 mi north of Zilpha Creek and near center sec. 8, T. 16 N., R. 6 E., northwestern Attala Co., western MS (Thomas, 1942).


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 ([ ]).