ROGERS, Daniel, Amsted Industries, 180 Stetson, Suite 1800, Chicago, IL 60601, KAUFMAN, Martin, The University of Michigan-Flint, 516 Murchie Science Building, Flint, MI 48502, MURRAY, Kent S., Natural Sciences, University of Michigan-Dearborn, 4901 Evergreen Rd, Dearborn, MI 48128 and RITTENOUR, Tammy, Department of Geology and Luminescence Laboratory, Utah State University, Logan, UT 84322, drogers@amsted.com, drogers@amsted.com

ARGYILAN, Erin, Dept. of Geosciences, Indiana University Northwest, 3400 Broadway, Gary, IN 46408, FORMAN, Steven L., Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, IL 60607, LEPPER, Kenneth, Department of Geosciences, North Dakota State University, P.O. Box 6050, Dept. 2745, Fargo, ND 58108-6050, THOMPSON, Todd A., Indiana Geological Survey, Indiana University, 611 North Walnut Grove, Bloomington, IN 47405-2208, JOHNSTON, John W., Department of Geography, University of Toronto Mississauga, 3359 Mississauga Road N, South Building, Mississauga, ON L5L 1C6, Canada and WILCOX, Douglas A., Environmental Science and Biology, SUNY-Brockport, 350 New Campus Drive, Brockport, NY 14420, eargyila@iun.edu, eargyila@iun.edu

LAMOTHE, Michel¹, AUCLAIR, Marie², BALESCU, Sanda³, BARRE, Magali², CAMUS, Maguelone² and HUOT, Sébastien², (1)Département des Sciences de la Terre et de l'Atmosphère, Université du Québec à Montréal, CP 8888 Centre-ville, Montréal, QC H3C 3P8, Canada, (2)Département des sciences de la Terre et de l'Atmosphère, Université du Québec à Montréal, CP 8888 Centre-ville, Montréal, QC H3C 3P8, Canada, (3)Laboratoire Halma Ipel, UMR 8164 (CNRS), Université des Sciences et Technologies de Lille, Villeneuve d’Ascq, 59655, France, lamothe.michel@uqam.ca, lamothe.michel@uqam.ca

LEPPER, Kenneth, Department of Geosciences, North Dakota State University, P.O. Box 6050, Dept. 2745, Fargo, ND 58108-6050 and LEWIS, Adam R., Department of Geosciences, North Dakota State University, P.O. Box 6050 Dept. 2745, Fargo, ND 58108-6050, ken.lepper@ndsu.edu, ken.lepper@ndsu.edu

BURDETTE, Kevin, School of Geography and Earth Sciences, McMaster University, General Science Bldg. Rm 311, Hamilton, ON L8S 4L8, Canada, RINK, W. Jack, School of Geography and Earth Sciences, McMaster University, 1280 Main St. West, Hamilton, ON L8S 4K1, Canada and MEANS, Guy, Florida Geological Survey, Tallahassee, FL 32304, burdetke@univmail.cis.mcmaster.ca, burdetke@univmail.cis.mcmaster.ca

PATTEN, John, University of Texas at Arlington, 3125 Major street, Fort Worth, TX 76112, johnbpatten@gmail.com, johnbpatten@gmail.com

WEBB, Laura D., Department of Geology, Bowling Green State University, 190 Overman Hall, Bowling Green, OH 43403 and EVANS, James E., Department of Geology, Bowling Green State University, Bowling Green, OH 43403, lwebb@bgsu.edu, lwebb@bgsu.edu

STAMM, John F., U.S. Geological Survey, 1608 Mountain View Road, Rapid City, SD 57702, HENDRICKS, Robert, Geology, South Dakota School of Mines, 501 East Saint Joseph St, Mineral Industries 334C, Rapid City, SD 57701, MAHAN, Shannon A., U.S. Geological Survey, Denver Federal Center, Denver, CO 80225, ZAPROWSKI, Brent J., Department of Geography and Geosciences, Salisbury University, Salisbury, MD 21801 and GEIBEL, Nicholas M., U.S. Army Corps of Engineers, Omaha District, 1616 Capitol Ave, Omaha, NE 68102, jstamm@usgs.gov, jstamm@usgs.gov

HENDRICKS, Robert, Geology, South Dakota School of Mines, 501 East Saint Joseph St, Mineral Industries 334C, Rapid City, SD 57701, SAWYER, J. Foster, Geology and Geological Engineering, South Dakota School of Mines and Technology, 501 E. St. Joseph St, Rapid City, SD 57701, STAMM, John, U.S. Geological Survey, 1608 Mountain View Road, Rapid City, SD 57702, MAHAN, Shannon A., U.S. Geological Survey, Denver Federal Center, Denver, CO 80225 and ZAPROWSKI, Brent J., Department of Geography and Geosciences, Salisbury University, Salisbury, MD 21801, robert.hendricks@mines.sdsmt.edu, robert.hendricks@mines.sdsmt.edu

MEIER, Holly A., Geology, Baylor University, One Bear Place #97354, Waco, TX 76798, NORDT, Lee C., Department of Geology, Baylor University, One Bear Place #97354, Waco, TX 76798 and FORMAN, Steven L., Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, IL 60607, holly_meier@baylor.edu, holly_meier@baylor.edu

HAYDEN, Anne, Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322-4505 and RITTENOUR, Tammy, Department of Geology and Luminescence Laboratory, Utah State University, Logan, UT 84322, anne.hayden@aggiemail.usu.edu, anne.hayden@aggiemail.usu.edu

BRUNHART-LUPO, Maria, Geology, Colorado School of Mines, 2415 Douglas Mountain Dr, Golden, CO 80403 and MAHAN, Shannon A., U.S. Geological Survey, Denver Federal Center, Denver, CO 80225, mbrunhar@mymail.mines.edu, mbrunhar@mymail.mines.edu

HOLEN, Steven, Curator of Archeology, Denver Museum of Nature and Science, Denver, CO 80205, MAHAN, Shannon, US Geol Survey, Box 25046 Federal Center, Denver, CO 80225 and MAY, David W., Department of Geography, University of Northern Iowa, 205 Innovative Teaching and Technology Center, Cedar Falls, IA 50614-0406, smahan@usgs.gov, smahan@usgs.gov