LUSARDI, Barbara A.¹, JOHNSON, Mark D.², ADAMS, Roberta S.¹, GOWAN, Angela S.³, HARRIS, Kenneth L.¹, HOBBS, Howard C.¹, JENNINGS, Carrie E.¹, KNAEBLE, Alan R.¹ and MEYER, Gary N.³, (1)Minnesota Geological Survey, University of Minnesota, 2642 University Avenue West, St. Paul, MN 55114, (2)Earth Sciences Institute, University of Gothenburg, Göteborg, 40530, Sweden, (3)Minnesota Geological Survey, University of Minnesota, 2609 West Territorial Road, St. Paul, MN 55114-1009, lusar001@umn.edu, lusar001@umn.edu

MICKELSON, D.M., Geo-Professional Consultants LLC, 2166 Keyes Ave, Madison, WI 53711, BRICKNELL, M.S., State Cartographer's Office, University of Wisconsin, 550 North Park St, Madison, WI 53706, ATTIG, John, Wisconsin Geological and Natural History Survey, Univ of Wisconsin, Madison, WI 53705 and CLARK, James A., Geology and Environmental Science, Wheaton College, 501 College Ave, Wheaton, IL 60187, geoprofs@yahoo.com, geoprofs@yahoo.com

KILGORE, Susan M., Dept. of Geoscience, University of Iowa, 121 Trowbridge Hall, Iowa City, IA 52242, BETTIS III, E. Arthur, Earth and Environmental Sciences, University of Iowa, 121 Trowbridge Hall, Iowa City, IA 52242 and QUADE, Deborah J., Iowa Department of Natural Resources Geological and Water Survey Bureau, 109 Trowbridge Hall, Iowa City, IA 52242, susan-kilgore@uiowa.edu, susan-kilgore@uiowa.edu

EWALD, Stephanie K., Geosciences, Western Michigan University, Kalamazoo, MI 49008, KEHEW, Alan E., Department of Geosciences, Western Michigan University, Kalamazoo, MI 49008 and ESCH, John M., Michigan Dept. of Environmental Quality, Office of Oil, Gas, and Minerals, P.O. 30256, Lansing, MI 48909, stephanie.k.ewald@wmich.edu, stephanie.k.ewald@wmich.edu

LOWELL, Thomas V., Department of Geology, University of Cincinnati, 500 Geology/Physics Building, Cincinnati, OH 45221 and CURRY, Brandon, Illinois State Geological Survey, 615 E. Peabody Dr, Champaign, IL 61820, thomas.lowell@uc.edu, thomas.lowell@uc.edu

WANG, Jie, PAN, Baotian, ZHANG, Guoliang, CAO, Bo and GENG, Haopeng, Key Laboratory of Western China's Environmental Systems (Ministry of Education), Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, China, lzuwangjie@gmail.com, lzuwangjie@gmail.com

GOWAN, Angela S. and THORLEIFSON, L. Harvey, Minnesota Geological Survey, University of Minnesota, 2609 West Territorial Road, St. Paul, MN 55114-1009, gowa0001@umn.edu, gowa0001@umn.edu

SHRODER Jr, John F.¹, BISHOP, Michael P.², BURGET, Angela¹ and ALI, Ghazanfar³, (1)Department of Geography & Geology, University of Nebraska at Omaha, 60th & Dodge, Omaha, NE 68182, (2)Geography and Geology, Univ of Nebraska at Omaha, Omaha, NE 68182, (3)Gcisc, Islamabad, Box # 3022, Pakistan, jshroder@unomaha.edu, jshroder@unomaha.edu

BENEDIKTSSON, Ívar Örn, Institute of Earth Sciences, University of Iceland, Askja, Sturlugata 7, Reykjavík, IS-101, Iceland and MÖLLER, Per, Department of Earth and Ecosystem Sciences, Division of Geology, Lund University, Sölvegatan 12, Lund, SE-223 62, Sweden, iob2@hi.is, iob2@hi.is

HUMPHRIES, Elizabeth E., Environmental Studies, College of the Holy Cross, 1 College Street, Worcester, MA 01610 and MITCHELL, Sara Gran, Department of Biology, College of the Holy Cross, PO Box B, 1 College St, Worcester, MA 01610, eehump12@g.holycross.edu, eehump12@g.holycross.edu

JÓNSSON, Sverrir A.¹, SCHOMACKER, Anders², BENEDIKTSSON, Ívar Örn¹, JOHNSON, Mark D.³, BRYNJÓLFSSON, Skafti² and INGÓLFSSON, Ólafur¹, (1)Institute of Earth Sciences, University of Iceland, Askja, Sturlugata 7, Reykjavík, IS-101, Iceland, (2)Department of Geology, Norwegian University of Science and Technology, Sem Saelands Veg 1, Bergbygget, Trondheim, N-7491, Norway, (3)Earth Science, University of Gothenburg, Box 460, 405 30 Göteborg, Göteborg, 405 30, Sweden, saj7@hi.is, saj7@hi.is

HAUZENBERGER, Barbara M., Department of Earth and Atmospheric Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907 and HEYMAN, Jakob, Department of Earth and Atmospheric Sciences, Purdue University, West Lafayette, IN 47907, bhauzenb@purdue.edu, bhauzenb@purdue.edu

WITTKOP, Chad¹, BRUGGER, Keith A.², BOLEY, Tyler D.¹, BLEESS, Ryan¹ and GERMAN, Questor¹, (1)Chemistry and Geology, Minnesota State University, Mankato, MN 56001, (2)Geology Discipline, University of Minnesota, Morris, 600 E. 4th Street, Morris, MN 56267, bruggeka@morris.umn.edu, bruggeka@morris.umn.edu

SIEGEL, Jacob, Earth Science, Rice University, Rice University MS-126, 6100 Main Street, Houston, TX 77005, DUGAN, Brandon, Earth Science, Rice University, 6100 Main Street, MS 126, Houston, TX 77005, LIZARRALDE, Dan, WHOI, Woods Hole, MA 02543, PERSON, Mark, Dept of Earth & Environmental Science, New Mexico Tech, 801 Leroy Place, Socorro, NM 87801, MILLER, Nathaniel, Geology and Geophysics, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, MA 02543 and DEFOOR, Whitney, Earth and Environmental Science, New Mexico Tech, 801 Leroy Place, Socorro, NM 87801, js22@rice.edu, js22@rice.edu

ISHMAN, Scott, Dept. of Geology & Center for Ecology, Southern Illinois Univ, 1259 Lincoln Drive, Carbondale, IL 62901-4324, DOMACK, Eugene W., Department of Geosciences, Hamilton College, 198 College Hill Rd, Clinton, NY 13323, LEVENTER, Amy, Geology, Colgate University, 13 Oak Drive, Hamilton, NY 13346, BRACHFELD, Stefanie, Earth and Environmental Studies, Montclair State Univ, 252 Mallory Hall, Upper Montclair, NJ 07043, LAVOIE, Caroline, GEMAR/RIMA - Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Borgo Grotta Gigante 42/C - 34010 Sgonico, Trieste, Italy, HUBER, Bruce, Division of Ocean and Climate Physics, Lamont-Doherty Earth Observatory and Columbia University, Palisades, NY 10964, WELLNER, Julia, Department of Geosciences, University of Houston, 312 Science & Research Building 1, Houston, TX 77204-5007 and MATULAITIS, Ilona, Department of Geology, Southern Illinois University Carbondale, Carbondale, IL 62901, sishman@siu.edu, sishman@siu.edu

LONGBOTTOM, Todd L., Geology, University of Cincinnati, Cincinnati, OH 45208, OWEN, Lewis, Geology, University of Cincinnati, Cincinnati, OH 45221-0013, CAFFEE, M.W., Department of Physics, Purdue University, 1396 PHYSICS BLDG, W. Lafayette, IN 47907-1396 and MURARI, Madhav K., Geology Department, University of Cincinnati, 500 Geology/Physics, Cincinnati, OH 45220, todd.longbottom1@gmail.com, todd.longbottom1@gmail.com

SCHMID, Ginger L. and WILKERSON, Forrest D., Department of Geography, Minnesota State University, 7 Armstrong Hall, Mankato, MN 56001, ginger.schmid@mnsu.edu, ginger.schmid@mnsu.edu

VERMEULEN, Michael¹, TODD, Claire¹, BALCO, Greg², HUYBERS, Kathleen³, CAMPBELL, Seth⁴ and SIMMONS, Christopher⁵, (1)Department of Geosciences, Pacific Lutheran University, Tacoma, WA 98447, (2)Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709, (3)Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195, (4)School of Earth and Climate Sciences, University of Maine, Orono, ME 04469, (5)Pro Guiding Service, Seattle, WA 98045, vermeume@plu.edu, vermeume@plu.edu