Usage:
Edgar Member of Marathon Formation (WI)
Geologic age:
Quaternary (Pleistocene)
Type section, locality, area and/or origin of name:
Type section: exposure in Chicago and Northwestern RR cut, [about 1.5 mi south-southwest of Edgar], on south side of County Trunk Highway N, in NW/4 NE/4 NW/4 sec. 24, T. 28 N., R. 4 E., [approx. Lat. 44 deg. 54 min. 04 sec. N., Long. 89 deg. 58 min. 39 sec. W.], Edgar 7.5-min quadrangle, Marathon Co., central WI. Named from the village of Edgar, Edgar 7.5-min quadrangle, Marathon Co., central WI; name credited to William N. Mode (Mickelson and others, 1984; Syverson and others, 2011).
Reference section: exposure in Minneapolis, St. Paul, and Sault Ste. Marie RR cut, on north side of Yellowstone Drive, about 0.3 mi (0.5 km) west of its intersection with Day Road, and about 0.6 mi (0.9 km) east of village of Hewitt, in SE/4 SW/4 SE/4 sec. 13, T. 25 N., R. 3 E., [approx. Lat. 44 deg. 38 min. 28 sec. N., Long. 90 deg. 05 min. 06 sec. W.], Hewitt 7.5-min quadrangle, Wood Co., central WI (Mickelson and others, 1984; Syverson and others, 2011).
AAPG geologic province:
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 ([ ]).