Usage:
Peshtigo Monzonite (WI)
/Peshtigo Mangerite (WI*)
Originally called Peshtigo River Porphyry (WI).
["The lithic term should be a common and familiar term, such as schist, gneiss, gabbro. Specialized terms and terms not widely used, such as websterite and jacupirangite, and compound terms, such as graphitic schist and augen gneiss, should be avoided." (NACSN, 1983, Art. 40a).]
Geologic age:
Mesoproterozoic*
Type section, locality, area and/or origin of name:
Not designated. Mapped in vicinity of McCaslin syncline in western Marinette Co., WI (Read and Weis, 1962).
Occurs near High Falls reservoir, Marinette Co., northeastern WI.
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 ([ ]).