Usage:
Belvidere Till Member of Glasford Formation (IL)
Geologic age:
Quaternary
Pleistocene
Illinoian
Type section, locality, area and/or origin of name:
Type section: Belvidere South Boring, near junction of U.S. Route 20 and Genoa Road, 0.8 km southeast of Belvidere, in NW/4 NW/4 NW/4 sec. 6, T. 43 N., R. 4 E., Boone Co., IL (Kempton and others, 1985).
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 ([ ]).