Usage:
Magnolia Member of Platteville Formation of Sinnipee Group (WI)
Magnolia Member of Platteville Formation (MN)
Magnolia Member of Platteville Formation of Galena Group (IA)
Magnolia Bed of McGregor Member of Platteville Formation (MN)
Geologic age:
Late Ordovician (Mohawkian; Turinian)
Type section, locality, area and/or origin of name:
Type exposure on or near Highways 13 and 14, 1 mi south of Magnolia, in NW/4 sec. 26, T. 3 N., R. 10 E., Rock Co., WI (Bays and Raasch, 1935).
AAPG geologic province:
Sioux uplift
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 ([ ]).