QUANTIFYING PLEISTOCENE LOESS PROVENANCE IN MIDCONTINENTAL NORTH AMERICA USING MULTIPLE SEDIMENT SOURCES AND A MIXING MODEL: IMPLICATIONS FOR GLACIAL LOBE EVOLUTION ALONG THE SOUTHERN LAURENTIDE ICE SHEET
DENDY, Sarah, University of Illinois, Urbana-Champaign, Department of Geology, 1301 W Green St, Urbana, IL 61801; Illinois State Geological Survey, Prairie Research Institute, University of Illinois at Urbana-Champaign, 615 E. Peabody Drive, Champaign, IL 61820, GUENTHNER, William, Department of Earth Science & Environmental Change, University of Illinois at Urbana-Champaign, Urbana, IL 61801, GRIMLEY, David A., Illinois State Geological Survey, Prairie Research Institute, University of Illinois at Urbana-Champaign, 615 E. Peabody Drive, Champaign, IL 61820 and CONROY, Jessica L., Department of Earth Science & Environmental Change, University of Illinois at Urbana-Champaign, 3081 Natural History Building, 1301 W. Green St., Urbana, IL 61801; Department of Plant Biology, University of Illinois Urbana-Champaign, 1301 W Green St, Urbana, IL 61801