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National Geologic Map Database

Geologic Unit: Conant

Usage:

Conant Limestone Member of Carbondale Formation (IL)
Conant Limestone (KY)


Geologic age:

Middle Pennsylvanian (Desmoinesian)


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

In NW/4 NE/4 sec. 34, T. 5 S., R. 4 W., Perry Co., southern IL. Named from village of Conant, about 2 mi east of type locality (Kosanke and others, 1960).


AAPG geologic province:

Illinois basin


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 ([ ]).