Usage:
Tadmuck Brook Schist (MA*)
Geologic age:
Precambrian*
Proterozoic, Late*
Ordovician*
Silurian(?)*
Type section, locality, area and/or origin of name:
Area on both sides of Tadmuck Brook in town of Westford, delineated on southeast side by upper forks of brook and on northwest side by Lowell Road, Westford quadrangle, Middlesex Co., central MA (Bell and Alvord, 1976).
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 ([ ]).