U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Emporia

Usage:

Emporia Limestone of Wabaunsee Group (IA*,KS*,MO*,NE*,OK*)
Emporia Formation of Wabaunsee Group (IA*,MO*,NE*)
Emporia Limestone of Vanoss Group (OK)
Emporia Formation of of /Nemaha subgroup [informal] Wabaunsee Group (MO)
Emporia Limestone of /Nemaha subgroup [informal] of Wabaunsee Group (KS)

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


Subunits:

(alphabetical): Elmont Limestone Member (IA,KS*,MO*,NE,OK*), Harveyville Shale Member (KS*,MO,NE,OK), Reading Limestone Member (IA,KS*,MO,NE,OK).


Geologic age:

Late Pennsylvanian (Virgilian)*


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

Not designated. Quarried at Emporia, Lyon Co., eastern KS (Kirk, 1896).
Reference section: on KS Highway 10, in NW/4 sec. 31, T. 11 S., R. 14 E., Shawnee Co., eastern KS (Moore and Mudge, 1956).


AAPG geologic province:

Forest City basin*
Chautauqua platform*


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 ([ ]).