Usage:
No current usage?
(†/Beecher Gneiss (WI), or [?]†/Beecher Formation (WI), considered abandoned? Uncertain if used by the WI Geol. Survey. Abandoned by the USGS.)
[Preoccupied. Name previously applied to Beecher Member of Dunlieth Formation by Templeton and Willman (1952) in IL.]
Geologic age:
Late Archean
Type section, locality, area and/or origin of name:
Type locality not stated by authors. Mapped in northeastern WI. Origin of name not stated by authors (Dutton and Bradley, 1970).
AAPG geologic province:
Lake Superior region
Wisconsin arch
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 ([ ]).