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 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 ([ ]).