Usage:
No current usage.
(†Cliffield Formation (TN,VA) or †Cliffield Group (TN,VA) considered obsolete.)
Geologic age:
late Middle and/or Late Ordovician (Chazyan to Turinian)
Type section, locality, area and/or origin of name:
Type section: along Pounding Mill Brook and U.S. Highway 19, south of the Norfolk and Western RR underpass. Named from Cliffield store and station, about 8 mi southwest of Tazewell, Tazewell Co., southwestern VA (Cooper and Prouty, 1943).
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 ([ ]).