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National Geologic Map Database

Geologic Unit: Waldron

Usage:

Waldron Shale (KY*,IN*)
Waldron Formation (IN)
Waldron Formation of Wayne Group (TN*)
Waldron Shale of Wayne Group (TN)
Waldron Clay Member of Wayne Formation (TN*)
Waldron Member of Pleasant Mills Formation (IN)


Geologic age:

Silurian*


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

Waldron, Shelby Co., IN.


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).