Usage:
Beaver Brook Member of Nashoba Formation (MA*)
Geologic age:
Neoproterozoic or Ordovician*
Type section, locality, area and/or origin of name:
Type locality: area bounded on northeast by Mill Road, on southeast by Foster Street in town of Littleton, on southwest by Old Turnpike-Littleton County Road in towns of Boxborough and Harvard, and on northwest by southeast foot of Oak Hill in towns of Harvard and Littleton, Middlesex Co., central MA; Ayer, Hudson, and Westford quadrangles, Middlesex Co., central MA. Origin of name not stated (Bill and Avord, 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 ([ ]).