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National Geologic Map Database

Geologic Unit: Kyrock

Usage:

Kyrock Conglomerate (KY)
Kyrock Sandstone Member of Caseyville Formation of Racoon Creek Group (KY)


Geologic age:

Pennsylvanian, Early


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

Notable exposures on Nolin River at Kyrock, Edmonson Co., central KY (Wanless, 1939; McFarlan, 1943).


AAPG geologic province:

Cincinnati arch
Illinois basin


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).