McCaslin Quartzite (WI)
McCaslin Formation (WI)
Paleoproterozoic
Not stated. Origin of name not stated by author, but apparently named from McCaslin Mountain, an east-west ridge of resistant quartzite in northeastern WI (Mancuso, 1961).
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 ([ ]).