North-Central Section - 54th Annual Meeting - 2020

Session No. 24
Tuesday, 19 May 2020: 8:00 AM-12:00 PM
Lake Superior Ballroom O (Duluth Entertainment Convention Center)

T11. Glaciation and Deglaciation along the Southern Margin of the Laurentide Ice Sheet I: Bringing Multiple Tools to Bear

GSA Quaternary Geology and Geomorphology Division

 

Jennifer McDonald, David J Ullman and Kenneth Lepper, Advocates
Paper #
Start Time
8:00 AM
CHRONOLOGY AND EXTENT OF THE LAURENTIDE ICE SHEET IN THE ARROWHEAD REGION, NORTHEASTERN MINNESOTA, USA
MCDONALD, Jennifer, WAGNER, Kaleb G. and MEYER, Gary N., Minnesota Geological Survey, University of Minnesota, 2609 W Territorial Rd, St Paul, MN 55114
8:20 AM
LOBATE INTERACTIONS AND GLACIAL LANDSYSTEM HETEROGENEITY ALONG THE SOUTHERN MARGIN OF THE LAURENTIDE ICE SHEET, NORTHEASTERN MINNESOTA
WAGNER, Kaleb G., MCDONALD, Jennifer and MEYER, Gary N., Minnesota Geological Survey, University of Minnesota, 2609 W Territorial Rd, St Paul, MN 55114
8:40 AM
A NEW GLACIAL VARVE CHRONOLOGY FROM NORTHERN MINNESOTA AND NORTHWESTERN ONTARIO
BRECKENRIDGE, Andy J.1, LOWELL, Thomas V.2, WATTRUS, Nigel3, PETEET, Dorothy4, DOUGLAS, Peter1, MORETTO Jr., Michael5 and NORRIS, Nathaniel6, (1)Department of Natural Sciences, University of Wisconsin - Superior, Belknap and Catlin, P.O. Box 2000, Superior, WI 54880, (2)Department of Geology, University of Cincinnati, Cincinnati, OH 45221, (3)Large Lakes Observatory & Department of Earth and Environmental Sciences, University of Minnesota Duluth, 1114 Kirby Drive, HH229, Duluth, MN 55812, (4)NASA/Goddard Institute for Space Studies, 2880 Broadway, New York, NY 10025, (5)Natural Sciences Department, University of Wisconsin-Superior, P.O. Box 2000, Superior, WI 54880, (6)Department of Geology, University of Cincinnati, 500 Geology/Physics Building, Cincinnati, OH 45221-0013
9:00 AM
A NEW SURFACE EXPOSURE CHRONOLOGY FOR THE MOST RECENT DEGLACIATION OF SOUTHERN LAKE SUPERIOR AND THE IMPLICATIONS FOR PROGLACIAL LAKE EVOLUTION AND CONTINENTAL-SCALE MELTWATER ROUTING
ULLMAN, David J.1, MORENCY, Michelle2, PRINCE, Karlee K.3, FITZ, Tom2, BARTH, Aaron M.4, BRECKENRIDGE, Andy J.5, CEPERLEY, Elizabeth G.6, MARCOTT, Shaun A.7 and CAFFEE, Marc W.8, (1)Department of Geoscience, Northland College, 1411 Ellis Ave., Ashland, WI 53804, (2)Department of Geoscience, Northland College, 1411 Ellis Ave S., Ashland, WI 54806, (3)U.S. Geological Survey, Florence Bascom Geoscience Center, 12201 Sunrise Valley Drive, USGS National Center, Mail Stop 926A, Reston, VA 20192; Department of Geoscience, Northland College, 1411 Ellis Ave S., Ashland, WI 54806, (4)Division of Geology & Mineral Resources, Virginia Department of Mines, Minerals & Energy, 900 Natural Resources Drive, Charlottesville, VA 22902, (5)Department of Natural Sciences, University of Wisconsin - Superior, Belknap and Catlin, P.O. Box 2000, Superior, WI 54880, (6)Department of Geology, Oberlin College, 52 W Lorain St, Oberlin, OH 44074, (7)Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton St, Madison, WI 53706, (8)Department of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayette, IN 47907
9:20 AM
WHAT BEACH IS IT? GEOMORPHOLOGICAL OR GEOCHRONOLOGICAL CORRELATION OF LAKE AGASSIZ SHORELINES IN NORTHWESTERN MINNESOTA, USA
LEPPER, Kenneth, Department of Geosciences, North Dakota State University, P.O. Box 6050 / 2745, Fargo, ND 58108-6050
 
9:40 AM
Break
9:55 AM
SOUTHERN LAURENTIDE ICE SHEET FLUCTUATIONS DURING TERMINATION 1
LOWELL, Thomas V.1, HEATH, Stephanie L.1, HALL, Brenda L.2, KELLY, Meredith A.3 and DIEFENDORF, Aaron F.4, (1)Department of Geology, University of Cincinnati, 500 Geology/Physics Building, Cincinnati, OH 45221, (2)School of Earth and Climate Sciences and The Climate Change Institute, University of Maine, Orono, ME 04469, (3)Earth Sciences, Dartmouth College, HB 6105 Fairchild Hall, Hanover, NH 03755, (4)Department of Geology, University of Cincinnati, Cincinnati, OH 45221
10:15 AM
EVOLUTION OF THE TWIN CITIES MEMBER TILL: IMPLICATIONS FOR LITHOLOGIC VARIATION IN THE NEW ULM FORMATION
BERTHOLD, Angela J., Minnesota Geological Survey, University of Minnesota, 2609 Territorial Road, St. Paul, MN 55114 and MOOERS, Howard D., Earth and Environmental Sciences, University of Minnesota Duluth, 230 Heller Hall, 1114 Kirby Dr., Duluth, MN 55812
10:35 AM
STRATIGRAPHY AND GEOCHRONOLOGY OF THE SOUTHWEST MARGIN OF THE LAURENTIDE ICE SHEET: QUATERNARY SEDIMENTARY SEQUENCES ON THE NORTHERN PLAINS, MONTANA
HILL, Christopher L., National Science Foundation, Alexandria, VA 22314; Geosciences and Anthropology, Boise State University, 1910 University Drive, Boise, ID 83725 and FEATHERS, James K., Department of Anthropology, University of Washington, Seattle, WA 98117
10:55 AM
DETERMINING A GLACIAL BOUNDARY WITHOUT TRADITIONAL STRATIGRAPHIC AND GEOMORPHIC EVIDENCE: MAPPING THE MIDDLE WISCONSINAN SHELDON CREEK FORMATION IN NORTH-CENTRAL IOWA
TASSIER-SURINE, Stephanie A. and KERR, Phillip J., Iowa Geological Survey, University of Iowa, 340 Trowbridge Hall, Iowa City, IA 52242
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