Usage:
Little Falls Formation of Mille Lacs Group (MN)
Geologic age:
Precambrian, middle
Proterozoic, Early
Type section, locality, area and/or origin of name:
Exposures on and near Mill Island, in valley of Mississippi River near center of city of Little Falls (in sec. 8, T. 41 N., R. 32 W., and sec. 19, T. 129 N., R. 32 W.), Morrison Co., MN (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 ([ ]).