Usage:
Allens Grove Member of Walworth Formation (IL,WI)
Geologic age:
Quaternary (Pleistocene; Illinoian)
Type section, locality, area and/or origin of name:
Type section: base of west wall of borrow pit, 0.5 mi (0.8 km) east of Allens Grove, about 2.5 mi (4 km) west of Capron Ridge and just north of old Highway 15, in NW/4 SE/4 SW/4 sec. 32, T. 2 N., R. 15 E., [approx. Lat. 42 deg. 34 min. 59 sec. N., Long. 88 deg. 44 min. 59 sec. W.], western edge Sharon 7.5-min quadrangle, Walworth Co., southeastern WI; name credited to Carl Fricke and David M. Mickelson (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 ([ ]).