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National Geologic Map Database

Geologic Unit: Holdenville

Usage:

Holdenville Shale of Marmaton Group (KS*,MO*,OK*)
Holdenville Formation of Marmaton Group (MO*,OK*)
/Holdenville subgroup [informal] of Marmaton Group (MO)

["Subgroup" not recognized as a formal stratigraphic rank term (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). Subgroup considered informal and should not be capitalized.]


Subunits:

FORMATION STATUS (alphabetical) --all in OK: Eleventh Street Limestone Member, Homer Limestone Member, Lost Branch Member, Memorial Shale Member, Sasakwa Limestone Member.
/SUBGROUP STATUS (alphabetical) --all in MO: Lenapah Formation, Lost Branch Formation, Memorial Shale, Nowata Shale.


Geologic age:

Middle Pennsylvanian (Desmoinesian)*


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

Named from Holdenville, which is located on the shale, in Hughes Co., central OK (Taff, 1901).


AAPG geologic province:

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 ([ ]).