Regional significance of pre-Wisconsinan till from Nantucket Island, Massachusetts
A major pre-Wisconsinan glacial event is the only possible source of the lower till on Nantucket Island, Massachusetts. The till occurs near the late Wisconsinan drift border and below fossiliferous marine beds of oxygen-isotope stage 5 (Sangamonian
-Wisconsinan (lower) till in New England may correlate with older tills elsewhere in the northeastern United States and in southeastern Canada that are considered to be early Wisconsinan or older in age.
The Late Wisconsinan savanna terrace in tributaries to the upper Mississippi River
The Savanna Terrace, composed of alternating red and gray clayey sediments of late Wisconsinan age, is the highest glaciofluvial-lacustrine deposit without a loess cover in the upper Mississippi valley. Chemical, physical, and mineralogical data
Sedimentology and palynology of Middle Wisconsinan deposits in the Pecatonica River valley, Wisconsin and Illinois
during the Early or Middle Wisconsinan (Altonian). Top and bottom radiocarbon dates from a 2.5-m section of peat overlying the diamicton are 26,820200 and 40,5001700 yr B.P., respectively. Together pollen and sediment data indicate that during the Middle
Wisconsinan, Pecatonica hillslopes progressed through a sequence of instability-stability-instability related to climatic fluctuations.
Terrestrial fossils in the marine Presumpscot Formation : implications for Late Wisconsinan paleoenvironments and isostatic rebound along the coast of Maine