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National Geologic Map Database

Geologic Unit: Caseyville

Usage:

Caseyville Formation (KY*)
Caseyville Formation of McCormick Group (IL*)
Caseyville Formation of Morrow Supergroup (IA)


Subunits:

(alphabetical): Battery Rock Sandstone Member (IL*,KY*), Bee Spring Sandstone Member (KY), Drury Member (IL), Gentry Coal Member (IL), Kyrock Sandstone Member (KY), Lusk Member (KY*) or Lusch Shale Member (IL*), Pounds Sandstone Member (IL*,KY*), Sellers Limestone Member (IL), Wayside Member (IL), Wildcat Den Coal Member (IA), Wyoming Hill Coal Member (IA).


Geologic age:

Early Pennsylvanian (Morrowan)*


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

Type area: measured from outcrops on IL shore of Ohio River, between mouth of Saline River and Gentrys Landing below Battery Rock, in T. 11 S., R. 10 E., Shawneetown quadrangle, Hardin Co., IL. Named from Caseyville, Union Co., KY (Lee, 1916).


AAPG geologic province:

Illinois basin*
Iowa shelf


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 ([ ]).