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National Geologic Map Database

Geologic Unit: Lecompton

Usage:

Lecompton Formation of Shawnee Group (IA*,MO*,NE*)
Lecompton Limestone of Shawnee Group (KS*)
Lecompton Limestone Member of Pawhuska Formation of Shawnee Group (OK*)
Lecompton Limestone Member of Pawhuska Formation of Ada Group (OK)


Subunits:

(alphabetical): Avoca Limestone Member (IA*,KS*,MO*,NE*), Beil Member (IA,KS*,NE*) or Beil Limestone Member (MO,OK), Big Springs Member (IA,KS*,NE) or Big Springs Limestone Member (MO), Doniphan Shale Member (IA,KS*,MO,NE), King Hill Shale Member (IA,KS*,MO,NE*), Queen Hill Shale Member (IA,KS*,MO,NE*), Spring Branch Member (IA,KS*,NE) or Spring Branch Limestone Member (MO).


Geologic age:

Late Pennsylvanian (Virgilian)*


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

Not synopsized to date.


AAPG geologic province:

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 ([ ]).