Usage:
Bascom Formation of Beekmantown Group (VT*)
Bascom Formation of Stockbridge Group (MA*)
Subunits:
FORMATION STATUS:
Brownell Mountain Phyllite Member (VT).
Geologic age:
Early Ordovician (Ibexian)*
Type section, locality, area and/or origin of name:
Named from "Bascom's Ledge," eastern Shoreham Twp., Addison Co., central western VT (Cady, 1945).
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 ([ ]).