Usage:
Cumnock Formation of Chatham Group of Newark Supergroup (NC*)
Geologic age:
Late Triassic (late Carnian)*
Type section, locality, area and/or origin of name:
Type section: Cumnock (formerly Egypt) coal mine shaft and four boreholes nearby, near Cumnock, Sanford basin, Lee Co., NC. (Campbell and Kimball, 1923).
AAPG geologic province:
Piedmont-Blue Ridge province*
Sanford basin*
Durham basin*
Deep River 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 ([ ]).