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National Geologic Map Database

Geologic Unit: Beechwood

Usage:

Beechwood Member of North Vernon Limestone (IN*)
Beechwood Limestone Member of Sellersburg Limestone (IN*,KY*)
Beechwood Formation (IN)
(†Sellersburg Limestone not used by the IN Geol. Survey. Replaced with North Vernon Limestone.)


Geologic age:

late Middle Devonian (Givetian)*


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

Named from Beechwood Station, Jefferson Co., KY. Exposed in stream a few rods [1 rod = 16.5 ft] north of the Shelbyville Turnpike, 0.5 mi south of Beechwood Station on the Louisville and Nashville RR, and 1.5 mi east of St. Mathews, [Prospect 15-min quadrangle], Jefferson Co., KY (Butts, 1915).


AAPG geologic province:

Cincinnati arch*
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 ([ ]).