LANDOWSKI, Claire M., Geology and Geophysics, University of Wyoming, 1000 E. University Ave, Laramie, WY 82071, HUMPHREY, Neil, Department of Geology and Geophysics, University of Wyoming, 1000 E. University Ave, Laramie, WY 82071, HARPER, Joel T., Department of Geosciences, University of Montana, 32 Campus Dr. #1296, Missoula, MT 59812 and SIMS, Kenneth W.W., Department of Geology and Geophysics, University of Wyoming, Laramie, WY 82071-2000, claire.landowski@gmail.com, claire.landowski@gmail.com

ADAMS, Roberta S.¹, JENNINGS, Carrie E.², LUSARDI, Barbara A.² and ROSS, Martin A.³, (1)Minnesota Geological Survey, University of Minnesota, 2642 University Avenue West, St. Paul, MN 551514, (2)Minnesota Geological Survey, University of Minnesota, 2642 University Avenue West, St. Paul, MN 55114, (3)Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. West, Waterloo, ON N2L 3G1, Canada, radams@umn.edu, radams@umn.edu

CLINE, Mitchell D., Geological and Atmospheric Sciences, Iowa State University, 359 Science 1, Ames, IA 50014, IVERSON, Neal R., Geological and Atmospheric Sciences, Iowa State University, 253 Science I, Ames, IA 50011 and HARDING, Chris, Dept. of Geological and Atmospheric Sciences/Human Computer Interaction Program, Iowa State University, Ames, IA 50011-3212, mdcline@iastate.edu, mdcline@iastate.edu

KEHEW, Alan E., Department of Geosciences, Western Michigan University, Kalamazoo, MI 49008, ESCH, John M., Michigan Dept. of Environmental Quality, Office of Oil, Gas, and Minerals, P.O. 30256, Lansing, MI 48909, EWALD, Stephanie K., Geosciences, Western Michigan University, Kalamazoo, MI 49008 and KOZLOWSKI, Andrew L., Geologic Survey, New York State Museum, 3140 Cultural Education Center, Albany, NY 12230, alan.kehew@wmich.edu, alan.kehew@wmich.edu

IVERSON, Neal R., Geological and Atmospheric Sciences, Iowa State University, 253 Science I, Ames, IA 50011, niverson@iastate.edu, niverson@iastate.edu

ANDERSON, Robert S.¹, DÜHNFORTH, Miriam², COLGAN, William³ and ANDERSON, Leif¹, (1)Department of Geological Sciences, INSTAAR, University of Colorado at Boulder, Campus Box 450, Boulder, CO 80309-0450, (2)Instaar, University of Colorado Boulder, Campus Box 450, Boulder, CO 80309-0450, (3)Cires, Department of Geography, University of Colorado at Boulder, Boulder, CO 80309, andersrs@colorado.edu, andersrs@colorado.edu

BOULTON, Geoffrey, University of Edinburgh, Grant Institute, The King's Buildings, West Mains Road, Edinburgh, EH9 3JW, United Kingdom, G.boulton@ed.ac.uk, G.boulton@ed.ac.uk

EVENSON, Edward¹, GENTOSO, Matt¹, KODAMA, Kenneth¹, IVERSON, Neal², ALLEY, Richard B.³, BERTI, Claudio⁴ and KOZLOWSKI, Andrew L.⁵, (1)Earth and Environmental Sciences, Lehigh University, Bethlehem, PA 18015, (2)Geological and Atmospheric Sciences, Iowa State Univ, 253 Science I, Ames, IA 50011, (3)Department of Geosciences, The Pennsylvania State Univ, Deike Builiding, University Park, PA 16802, (4)Earth and Environmental Sciences, Lehigh University, 1 W. Packer Ave, Bethlehem, PA 18015, (5)Geologic Survey, New York State Museum, 3140 Cultural Education Center, Albany, NY 12230, ebe0@lehigh.edu, ebe0@lehigh.edu

BIERMAN, Paul, Geology and School of Natural Resources, University of Vermont, Delehanty Hall, 180 Colchester Ave, Burlington, VT 05405, CORBETT, Lee B., Department of Geology and Rubenstein School of Environment and Natural Resources, University of Vermont, Delehanty Hall, 180 Colchester Ave, Burlington, VT 05405, FINKEL, Robert, Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, MS L-397, 7000 East Avenue, Livermore, CA 94550-9234, GRALY, Joseph A., Department of Geology and Geophysics, University of Wyoming, 1000 University Ave, Laramie, WY 82071, HUGHES, John, Department of Geology, University of Vermont, Delehanty Hall, 180 Colchester Ave, Burlington, VT 05405, LINI, Andrea, Geology, University of Vermont, 180 Colchester Ave, Burlington, VT 05405, NEUMANN, Thomas A., NASA Goddard Space Flight Center, Cryospheric Sciences Branch, Code 614.1, 8800 Greenbelt Road, Greenbelt, MD 20770 and ROOD, Dylan, Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA 94550-9234, pbierman@zoo.uvm.edu, pbierman@zoo.uvm.edu

REMPEL, Alan W., Geological Sciences, University of Oregon, 1272 University of Oregon, Eugene, OR 97403, rempel@uoregon.edu, rempel@uoregon.edu

CREYTS, Timothy T.¹, FERRACCIOLI, Fausto², BELL, Robin E.¹, WOLOVICK, Michael¹, CORR, Hugh², JORDAN, Tom², FREARSON, Nicholas¹, DAMASKE, Detlef³, ROSE, Kathryn C.² and BRAATEN, David⁴, (1)Lamont-Doherty Earth Observatory, Columbia University, 61 Rt. 9W, 109B Oceanography, Palisades, NY 10964, (2)British Antarctic Survey, High Cross, Maddingley Road, Cambridge, CB3 0ET, United Kingdom, (3)Bundesanstalt für Geowissenschaften und Rohstoffe, Geozentrum Hannover, (4)Center for the Remote Sensing of Ice Sheets, Kansas University, Lawrence, KS 66045, tcreyts@ldeo.columbia.edu, tcreyts@ldeo.columbia.edu

MOORE, Peter L., Geological and Atmospheric Sciences, Iowa State University, 253 Science 1, Ames, IA 50011, IVERSON, Neal R., Geological and Atmospheric Sciences, Iowa State University, 253 Science I, Ames, IA 50011, UNO, Kevin T., Geology and Geophysics, University of Utah, Salt Lake City, UT 84112, BRUGGER, Keith A., Geology Discipline, University of Minnesota, Morris, 600 E. 4th Street, Morris, MN 56267 and DETTINGER, Matthew, Department of Geosciences, University of Arizona, Gould-SimpsonBuilding #77, 1040 E 4th St, Tucson, AZ 85721, pmoore@iastate.edu, pmoore@iastate.edu

MICKELSON, D.M., Geo-Professional Consultants LLC, 2166 Keyes Ave, Madison, WI 53711, geoprofs@yahoo.com, geoprofs@yahoo.com