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National Geologic Map Database

Geologic Unit: Moorefield

Usage:

Moorefield Formation (AR*,OK*)
Moorefield Formation of Mayes Group (OK)


Subunits:

(alphabetical): Bayou Manard Member (OK), Lindsey Bridge Member (OK), Ordnance Plant Member (OK), Ruddell Shale Member (AR*), Spring Creek Member (AR*), Tahlequah Member (OK).


Geologic age:

Mississippian, Late*
Meramecian*
Chesterian*


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

Named from Moorefield, Independence Co., AR (Adams, 1904).


AAPG geologic province:

Arkoma basin*
Chautauqua platform


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 ([ ]).