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National Geologic Map Database

Geologic Unit: Stephensport

Usage:

Stephensport Group (KY,IN,IL)


Subunits:

(alphabetical): Beech Creek Limestone, Big Clifty Formation, Golconda Limestone, Haney Limestone, Hardinsburg Formation and Glen Dean Limestone (all IN) [Group appears to be undivided in KY and IL. No references in GNC index card files to indicate otherwise.]


Geologic age:

Late Mississippian (Chesterian)


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

Town of Stephensport, Breckinridge Co., KY (Cumings, 1922).


AAPG geologic province:

Cincinnati arch


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 ([ ]).