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National Geologic Map Database

NGMDB

Geologic Unit: Cloud Chief

Usage:

Cloud Chief Formation (OK*,TX*)
[?] Cloud Chief Formation of Foss Group (OK)


Subunits:

(alphabetical) --all in OK: Big Basin Member, Day Creek Dolomite Member*, Kiger Shale Member, Moccasin Creek Gypsum Member*.


Geologic age:

Middle Permian (Guadalupian)*


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

Typically exposed near town of Cloud Chief in eastern Washita Co., central western OK (Gould, 1924).


AAPG geologic province:

Anadarko basin*
Bend arch*
Palo Duro basin*
Permian basin*


NGMDB

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 ([ ]).

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Page Last Modified: Tue Jun 3 17:03:13 2014