Usage:
Trafalgar Formation (IN)
Subunits:
Center Grove and Cartersburg Till Members (IN); informal Earl Park till (IN)
Geologic age:
Quaternary
Pleistocene
Wisconsinan
Type section, locality, area and/or origin of name:
Type section: along Buckhart Creek about 2 mi east of Trafalgar and 500 ft north of IN Highway 252, in SE/4 NW/4 sec. 8, T. 11 N., R. 4 E., Johnson Co., south-central IN (Wayne, 1963).
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 ([ ]).