Usage:
Peyton Colluvium (IL)
Peyton Formation (IL)
Geologic age:
Quaternary
Pleistocene
Holocene
Type section, locality, area and/or origin of name:
Where Peyton Creek crosses formation at base of Illinois Valley bluffs, 2.4 km southwest of Glasford, NW/4 NE/4 sec. 32, T. 7 N., R. 6 E., Peoria Co., central IL (Willman and Frye, 1970).
AAPG geologic province:
Illinois 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 ([ ]).