Usage:
Aurora Till Member of Wolf Creek Formation (IL?,IA)
Geologic age:
Quaternary
Pleistocene
Type section, locality, area and/or origin of name:
Type locality (subsurface): Aurora drilling transect, a series of coreholes on divide between Wapsipinicon and Maquoketa Rivers, 3.2 km southwest of town of Aurora, in NE/4 sec. 23, T. 90 N., R. 8 W., Buchanan Co., northeastern IA (Hallberg, 1980).
AAPG geologic province:
Iowa shelf
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 ([ ]).