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National Geologic Map Database

Geologic Unit: Foraker

Usage:

Foraker Limestone of Council Grove Group (KS*,NE*,OK*)
Foraker Limestone of Vanoss Group (OK)


Subunits:

(alphabetical) --all in KS*,NE*,OK*: Americus Limestone Member, Hughes Creek Shale Member, Long Creek Limestone Member.


Geologic age:

Late Pennsylvanian (Virgilian)*


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

Named from Foraker, Foraker quadrangle, Osage Co., central northern OK. Forms the rim of Foraker Canyon, and is prominent along line of bluffs in eastern part of Foraker quadrangle (Heald, 1916).
Type section stated to be near Foraker, Osage Co., central northern OK (Mudge and Burton, 1959).


AAPG geologic province:

Chautauqua platform*
Cherokee basin*
Forest City basin*
Nemaha anticline*


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 ([ ]).