Usage:
Northfield Member of Gile Mountain Formation (VT*)
Northfield Formation (VT*)
Northfield Formation of St. Francis Group (VT)
Northfield Slate (VT*)
Geologic age:
Silurian(?)*
Devonian, Early*
Type section, locality, area and/or origin of name:
Village of Northfield, Northfield Twp., Barre quadrangle, Washington Co., northeastern VT, near which slate was formerly extensively quarried (Richardson, 1906; Currier and Jahns, 1941).
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 ([ ]).