Usage:
Grandfather Mountain Formation of Crossnore Complex (NC*)
Grandfather Mountain Formation (NC)
Subunits:
Montezuma Member (NC*); numerous informal conglomerate units (see Neton and Raymond, 1995).
Geologic age:
Neoproterozoic*
Type section, locality, area and/or origin of name:
Grandfather Mountain, Avery Co., north-central NC (Bryant, 1962).
AAPG geologic province:
Piedmont-Blue Ridge province*
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 ([ ]).