Usage:
Manitowoc Member of Kewaunee Formation of Wedron Group (IL-subsurface)
(†Manitowoc Member of Kewaunee Formation of Wedron Group not used by the WI Geol. Survey, type section in WI. Sediments probably included in Valders Member of Kewaunee Formation. See Valders.)
Geologic age:
Quaternary (Pleistocene; Wisconsinan)
Type section, locality, area and/or origin of name:
Type section (subsurface): depth-interval 259 cm to 328 cm, core 904, in Lake Michigan, 28 mi (45 km) southeast of Manitowoc, Lat. 43 deg. 45 min. N., Long. 87 deg. 22.2 min. W., Manitowoc Co., WI. Named from Manitowoc, Manitowoc Co., WI (Lineback and others, 1974).
AAPG geologic province:
Michigan basin
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 ([ ]).