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National Geologic Map Database

Geologic Unit: Cedar Bluff

Usage:

Cedar Bluff Group (IL,KY)


Subunits:

(alphabetical) --all in IL: Downeys Bluff Limestone, Renault Limestone, Yankeetown Sandstone.


Geologic age:

Mississippian, Late
Meramecian
Chesterian


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

Type section: Cedar Bluff (formerly Ohara) quarry near Princeton, Caldwell Co., western KY (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 ([ ]).