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National Geologic Map Database

Geologic Unit: Cora

Usage:

Cora Member of Clore Formation (IL,KY)


Geologic age:

Late Mississippian (Serpukhovian; late Chesterian)*


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

Type section: exposed in Mississippi Valley bluff at south edge of Degonia Creek Hollow, 0.25 mi north of Cora, in SW/4 SE/4 sec. 16, T. 8 S., R. 5 W., Campbell Hill quadrangle, Jackson Co., IL (Swann, 1963).


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 ([ ]).