Usage:
/Mount Garfield Porphyritic Quartz Syenite of White Mountain Igneous Suite (NH*)
Geologic age:
Late(?) Triassic to Early Jurassic*
Type section, locality, area and/or origin of name:
Type area: From just north of Mount Hale southwest to Hardwood Ridge, Franconia 15-min quadrangle, Grafton Co., northwestern NH. Named from Mount Garfield (Billings and Williams, 1935).
AAPG geologic province:
New England 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 ([ ]).