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National Geologic Map Database

Geologic Unit: Chadwell

Usage:

Chadwell Member of Warren Point Sandstone of Breathitt Group (KY-local)
Chadwell Member of Lee Formation (recognized locally in KY*,TN*,VA*)
Notable exposures in Cumberland Mtn. area.


Geologic age:

Early Pennsylvanian (late Namurian; Morrowan)*


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

Type section: at Chadwell Gap, a notch in Cumberland Mountain, approx. 10 mi northeast of Cumberland Gap, Bell Co., southeastern KY (Englund, 1964).


AAPG geologic province:

Appalachian 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 ([ ]).