North-Central Section - 39th Annual Meeting (May 19–20, 2005)

Session No. 19
Thursday, 19 May 2005: 1:20 PM-5:20 PM

T11. Landscape Development

 

Lesley A. Perg and Kelly MacGregor, Advocates
Paper #
Start Time
1
1:20 PM
RECORDS OF PAST EROSION RATES FROM COSMOGENIC-NUCLIDE CONCENTRATIONS IN OLD ALLUVIUM
BALCO, Greg, Dept of Earth and Space Sciences and Quaternary Research Center, Univ of Washington, Seattle, WA 98195-1310 and STONE, John O., Department of Earth and Space Sciences, Univ of Washington, Box 351310, Seattle, WA 98195-1310, balcs@u.washington.edu, balcs@u.washington.edu
2
1:40 PM
SURFACE ANALYSIS USING BOTH COSMOGENIC NUCLIDE DATING AND AIRBORNE LASER SWATH MAPPING (ALSM) ON OFFSET ALLUVIAL FANS ON THE CALICO FAULT, MOJAVE DESERT, CALIFORNIA
BLUMENTRITT, D.J.1, PERG, L.A.1 and OSKIN, M.E.2, (1)National Center for Earth-surface Dynamics, Dept. of Geology and Geophysics, Univ of Minnesota, 310 Pillsbury Drive SE, Minneapolis, MN 55455, (2)Department of Geological Sciences, Univ of North Carolina at Chapel Hill, CB #3315, Chapel Hill, NC 27599, blum0123@umn.edu, blum0123@umn.edu
3
1:55 PM
INTERPLAY OF LANDSCAPE RESPONSE TO TECTONIC OR CLIMATIC PERTURBATIONS AND COSMOGENIC-NUCLIDE CONCENTRATIONS: IMPLICATIONS FOR CALCULATING BASIN-SCALE EROSION RATES
SWENSON, John B., Department of Earth & Environmental Sciences, University of Minnesota Duluth, 1114 Kirby Dr, Duluth, MN 55812 and BROWN, Erik T., Large Lakes Observatory and Dept of Geol. Sci, Univ of Minnesota Duluth, Duluth, MN 55812, jswenso2@d.umn.edu, jswenso2@d.umn.edu
4
2:15 PM
INFLUENCE OF ALPINE GLACIAL EROSION ON THE HEIGHT AND MORPHOLOGY OF THE WASHINGTON CASCADES
MITCHELL, Sara Gran, Earth and Space Sciences, Univ of Washington, Box 351310, University of Washington, Seattle, WA 98195 and MONTGOMERY, David R., Earth and Space Sciences & Quaternary Research Center, Univ of Washington, 63 Johnson Hall, Box 351310 University of Washington, Seattle, WA 98195, sgm1@u.washington.edu, sgm1@u.washington.edu
5
2:30 PM
PHYSIOGRAPHIC CONTROLS ON FIRE REGIMES IN CENTRAL MINNESOTA OVER THE PAST 1000 YEARS
HARTLEY, Andrew and SHUMAN, Bryan, Geography, Univ of Minnesota, 414 Social Science Building, 267 - 19th Avenue S, Minneapolis, MN 55455, hart0392@umn.edu, hart0392@umn.edu
6
2:45 PM
ARIDITY AND THE EVOLUTION OF CLOSED BASINS IN ASIA
CARROLL, Alan R., Department of Geology and Geophysics, Univ of Wisconsin, 1215 W Dayton St, Madison, WI 53706, GRAHAM, S.A., Department of Geological and Environmental Sciences, Stanford Univ, Stanford, CA 94305 and SMITH, M. Elliot, Department of Geology and Geophysics, Univ of Wisconsin-Madison, 1215 W Dayton St, Madison, WI 53706-1692, carroll@geology.wisc.edu, carroll@geology.wisc.edu
7
3:05 PM
EVOLUTION OF BRAIDED MORPHOLOGY IN RESPONSE TO VEGETATION FORCING IN A LABORATORY CHANNEL
TAL, Michal, Geology & Geophysics, Univ of Minnesota, 310 Pillsbury Drive SE, Room 108, Minneapolis, MN 55455-0219 and PAOLA, Chris, National Ctr for Earth-surface Dynamics, St. Anthony Falls Laboratory, 2 Third Ave. SE, Minneapolis, MN 55414, talx0001@umn.edu, talx0001@umn.edu
8
3:20 PM
BED DEFORMATION BY ICE SHEETS: EVALUATING THE ASSUMPTIONS BEHIND THE PARADIGM
IVERSON, Neal R.1, HOOYER, Thomas S.2, THOMASON, Jason1, MOORE, Peter1, FISCHER, Urs H.3 and COHEN, Denis1, (1)Geological and Atmospheric Sciences, Iowa State Univ, Ames, IA 50011, (2)Wisconsin Geological and Natural History Survey, Univ of Wisconsin, Madsion, 53705, (3)Laboratory of Hydraulics, Hydrology and Glaciology, ETH, Zurich, CH-8092, Switzerland, niverson@iastate.edu, niverson@iastate.edu
9
3:40 PM
USE OF ANISOTROPY OF MAGNETIC SUSCEPTIBILITY TO INFER TILL SHEAR STRAIN IN A DRUMLIN OF THE GREEN BAY LOBE, WISCONSIN
GRAESCH, Matthew Allan, Geological Atmospheric Sciences, Iowa State Univ, 353 Science 1, Ames, IA 50011, IVERSON, Neal R., Geological and Atmospheric Sciences, Iowa State Univ, Ames, IA 50011 and JACKSON, Michael, Institute for Rock Magnetism, 291 Shepard Labs, 100 Union Street S.E, Minneapolis, MN 55455, mgraesch@iastate.edu, mgraesch@iastate.edu
10
3:55 PM
A LABORATORY AND FIELD STUDY OF THE MICROSTRUCTURAL STRAIN SIGNATURE IN A BASAL TILL, LAKE MICHIGAN LOBE
THOMASON, Jason F. and IVERSON, Neal R., Geological and Atmospheric Sciences, Iowa State Univ, Ames, IA 50011, jfthom@iastate.edu, jfthom@iastate.edu
11
4:10 PM
EVALUATING THEORETICAL MODELS FOR THE SPATIAL DISTRIBUTION OF SUBGLACIAL EROSION IN THE SAWATCH RANGE OF COLORADO
LABLANC, Kelly J., Department of Geology, Univ of Cincinnati, 500 Geology/Physics Bldg, Cincinnati, OH 45221, klablanc@hotmail.com, klablanc@hotmail.com
12
4:25 PM
EROSION AT THE SUMMIT: UNLOCKING THE KEY TO CIRQUE FORMATION
MATHERS, Genevive R. and MACGREGOR, Kelly R., Department of Geology, Macalester College, 1600 Grand Ave, St. Paul, MN 55105, gmathers@macalester.edu, gmathers@macalester.edu
13
4:40 PM
A QUARRYING EXPERIMENT BENEATH A THICK VALLEY GLACIER: ROLE OF TRANSIENT WATER PRESSURE
HOOYER, Thomas S.1, COHEN, Denis2, IVERSON, Neal P.2, THOMASON, Jason2 and JACKSON, Miriam3, (1)Wisconsin Geological and Natural History Survey, Univ of Wisconsin, Madison, WI 53705, (2)Geological and Atmospheric Sciences, Iowa State Univ, Ames, IA 50011, (3)Norwegian Water Rscs and Energy Directorate, Oslo, Norway, tshooyer@wisc.edu, tshooyer@wisc.edu
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