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National Geologic Map Database

Geologic Unit: Blaine

Usage:

Blaine Formation of El Reno Group (OK*)
Blaine Formation of Pease River Group (TX*)
Blaine Formation of Nippewalla Group (KS*)
Blaine Formation (CO*,NE*)
Blaine Gypsum of El Reno Group (OK*)
Blaine Gypsum of Nippewalla Group (KS*)
Blaine Gypsum (CO*)
Blaine Gypsum Member of Lykins Formation (CO)


Subunits:

FORMATION STATUS (alphabetical): Acme Dolomite Member (TX*), Altona Dolomite Member (OK*), Aspermont Dolomite Member (TX*), Cedar Springs Dolomite Member (OK*), Cedartop Gypsum Member (OK*,TX*), Collinsworth Gypsum Member (OK*,TX*), Elm Fork Member (OK), Ferguson Gypsum Member (OK*), Guthrie Dolomite Member (TX*), Haskew Gypsum Member (KS*), Haystack Gypsum Member (OK*,TX*), Jester Dolomite Member (OK*), Kingfisher Creek Gypsum Member (OK*), Lovedale Gypsum Member (OK*), Magpie Dolomite Bed (OK) or Magpie Dolomite Member (OK*), Mangum Dolomite Member (OK*,TX*), McCaulley Dolomite [unranked] (TX), Medicine Lodge Gypsum Member (KS*,OK*,TX*), Nescatunga Gypsum Bed (OK) or Nescatunga Gypsum Member (KS*,OK*), Shimer Gypsum Member (KS*,OK*,TX*), Van Vacter Gypsum Member (OK*,TX*).


Geologic age:

Early Permian (Cisuralian; Leonardian)*


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

Type locality: in Salt Creek (Henquenet's) Canyon in northern Blaine Co., western OK. Named from exposures in Blaine Co. (US geologic names lexicons, USGS Bull. 896, 1200).


AAPG geologic province:

Anadarko basin*
Bend arch*
Chautauqua platform*
Las Animas arch*
Las Vegas-Raton basin*
Palo Duro basin*
Permian basin*
Sedgwick basin*
South Oklahoma folded belt*


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 ([ ]).