Usage:
Sauk Rapids Metamorphic Complex (MN)
Subunits:
(alphabetical) --all in MN: St. Wendel Metagabbro, [?]Sartell Gneiss, Watab Amphibolite.
Geologic age:
Archean
Type section, locality, area and/or origin of name:
Not designated. Named from city of Sauk Rapids in Benton Co., MN, near the south edge of the outcrop area, in parts of T. 125 N., R. 28 and 29 W., and T. 36 and 37 N., R. 31 W. (Morey, 1978).
AAPG geologic province:
Lake Superior region
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 ([ ]).