Usage:
Zenda Formation (WI)
Subunits:
Capron Member, Tiskilwa Member.
Geologic age:
Quaternary (Pleistocene)
Type section, locality, area and/or origin of name:
Type section: roadcut on south side of County Trunk Highway B, east of its intersection with Hillside Road, 1.1 mi (1.8 km) northeast of the locality of Zenda, in NW/4 NW/4 SW/4 sec. 26, T. 1 N., R. 17 E., [approx. Lat. 42 deg. 30 min. 58 sec. N., Long. 88 deg. 27 min. 42 sec. W.], Lake Geneva 7.5-min quadrangle, Walworth Co., southeastern WI (Mickelson and others, 1984; Syverson and others, 2011).
Named from community of Zenda, southwestern corner Lake Geneva 7.5-min quadrangle, Walworth Co., southeastern WI; name credited to Allan F. Schneider (Mickelson and others, 1984; Syverson and others, 2011).
Reference sections (Willman and Frye, 1970):
(1) Capron North section (=type section of Capron Member), roadcut 3 mi (5 km) north of Capron, in NE/4 SE/4 SE/4 sec. 23, T. 46 N., R. 4 E., [approx. Lat. 42 deg. 26 min. 44 sec. N., Long. 88 deg. 43 min. 34 sec. W.], Capron 7.5-min quadrangle, Boone Co., northeastern IL.
(2) Buda East section (=type section of Tiskilwa Member), roadcut 5 mi (8 km) northwest of Tiskilwa, IL, in SE/4 SE/4 SW/4 sec. 31, T. 16 N., R. 8 E., [approx. Lat. 41 deg. 19 min. 20 sec. N., Long. 89 deg. 37 min. 00 sec. W.], Buda 15-min quadrangle, Bureau Co., western northern IL.
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 ([ ]).