An Illinoian drift above deposits of Abington interstadial, as defined in this report, is considered to belong to one recessional stade, here named Richmond glacial stade. Type section designated on Wildman Farm in Wayne Co., southeastern IN.
Source: GNU records (USGS DDS-6; Reston GNULEX).
Unit, referred to here as Richmond Till, is described in southeastern IN and southwestern OH. Overlies Abington interstadial; underlies Whitewater Till (52,000 ka). Age is Illinoian.
Source: GNU records (USGS DDS-6; Reston GNULEX).
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 ([ ]).