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History of investigation and classification of Wisconsinan drift in northcentral
Late Wisconsin fluctuations of the Laurentide ice sheet in southern and eastern
Wisconsinan history of the HudsonChamplain Lobe G Gordon Connolly
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Altonian America Bull basal bedrock Canada Catfish Creek clay climatic Connally core correlation Croix Moraine Croix phase curve Dreimanis drift Drolet Lentil Drumlin eastern Erie Interstade Erie Lobe eskers Farmdalian flow glacial advance Glacial geology glacier Globorotalia inflata Goldthwait granodioritic Grantsburg Sublobe gravel Gulf of Mexico Highland Holocene Huron ice lobes ice sheet Illinoian Indiana indicate interglacial interstadial Iowan Jour Karrow Lake Erie Lake Michigan Lake Michigan Lobe Lake Superior Basin late Wisconsin layer Lennoxville Leverett loess Lowland Minnesota Moines Lobe Morner mounds northern northwestern Ohio Ontario Lobe outwash permafrost pingo Pleistocene pollen proglacial lake Quaternary radiocarbon dates readvance region Rept retreat River rocks samples sand sediments silt Sirkin soil southern stratigraphic subglacial Substage Superior Lobe surface Survey Bull temperature tunnel valleys U.S. Geol ultrabasic Univ Wallkill western Wisconsin glaciation Wisconsinan Woodfordian Wright yrs ago yrs B.P. zone