- Usage in publication:
-
- Boston Till, Drift
- Modifications:
-
- Named
- Dominant lithology:
-
- Till
- Loam
- Silt
- AAPG geologic province:
-
- Cincinnati arch
Summary:
Unit named for occurrence 3.4 km east of Boston, Highland Co., OH. Described as yellowish-brown calcareous till. Contains sparse pebbles and cobbles in compact, uncemented silt loam matrix. Thickness ranges from 2 to 3 m. Overlies Rainsboro drift/till; underlies surface loess cap. Name originally from author's 1970 Ph.D. thesis. Dated at 21,080+/-200 ka.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Boston Till
- Modifications:
-
- Overview
- AAPG geologic province:
-
- Cincinnati arch
Summary:
Boston Till of Highland Co. mapped in Ross Co. Areally, texturally, and compositionally distinct from all other tills in Ross Co. Reference section designated. Till is friable, pebble-rich, yellow-brown. Leached of carbonates to depth of 32 in. Thickness 7 ft. Underlies unnamed loess. Age is late Wisconsinan.
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 ([ ]).