Usage:
Androscoggin pluton [informal] (ME)
(†Androscoggin pluton abandoned by the USGS. Replaced with Vassalboro Formation and Patch Mountain Limestone Member of Sangerville Formation. See Vassalboro and Patch Mountain.)
Considered informal by the ME Geol. Survey. The rank or lithologic term should not be capitalized.
Geologic age:
Ordovician(?)
Type section, locality, area and/or origin of name:
Type locality: at City Rapids, between Lewiston and Auburn [Androscoggin Co.], southwestern ME (Fisher, 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 ([ ]).