HUBBARD, Trent D.¹, REGER, Richard D.² and GALLAGHER, Patricia E.¹, (1)Alaska Division of Geological & Geophysical Surveys, 3354 College Road, Fairbanks, AK 99709, (2)Reger's Geologic Consulting, P.O. Box 3326, Soldotna, AK 99669, trent.hubbard@alaska.gov, trent.hubbard@alaska.gov

EASTON, R. Michael, Ontario Geological Survey, Precambrian Geoscience Section, B7064, 933 Ramsey Lake Road, Sudbury, ON P3E 6B5, Canada, mike.easton@ontario.ca, mike.easton@ontario.ca

CLELLAND, Steven M., SIMILOX-TOHON, Dominique and GIBBS, Alan D., Midland Valley Exploration Ltd, 144 West George Street, Glasgow, G2 2HG, United Kingdom, steven@mve.com, steven@mve.com

GARRITY, Christopher P., U.S. Geological Survey, 12201 Sunrise Valley Drive, MS 950, Reston, VA 20192 and SOLLER, David R., U.S. Geological Survey, 926-A National Center, Reston, VA 20192, cgarrity@usgs.gov, cgarrity@usgs.gov

MACCORMACK, Kelsey E., Alberta Geological Survey, Alberta Energy Regulator, 402 Twin Attria Building, 4999 - 98 Avenue, Edmonton, AB T6B 2X3, Canada, SLOMKA, Jessica Marie, School of Geography and Earth Sciences, McMaster University, Hamilton, ON L8s4K1, Canada, ARNAUD, Emmanuelle, School of Environmental Sciences, University of Guelph, 50 Stone Road East, Guelph, ON N1G2W1, Canada, PARKER, Beth L., G360 Centre for Applied Groundwater Research, University of Guelph, 50 Stone Rd E, Guelph, ON N1G 2W1, Canada, EYLES, Carolyn H., Integrated Science Program & School of Geography & Earth Sciences, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada and MEYER, Jessica R., G360 Centre for Applied Groundwater Research, School of Engineering, University of Guelph, 50 Stone Road East, Guelph, ON N1G2W1, Canada, kelsey.maccormack@aer.ca, kelsey.maccormack@aer.ca

HAUGERUD, Ralph A., U.S. Geological Survey, Dept Earth and Space Sciences, University of Washington, Box 351310, Seattle, WA 98195, SOLLER, David R., U.S. Geological Survey, 926-A National Center, Reston, VA 20192, THOMS, Evan E., U.S. Geological Survey, 4200 University Drive, Anchorage, AK 99508-4667 and RICHARD, Stephen M., Arizona Geological Survey, 416 W. Congress, #100, Tucson, AZ 85701-1381, rhaugerud@usgs.gov, rhaugerud@usgs.gov

PETERSON, Christopher D.¹, MURRAY, J.D.¹, TREXLER Jr, J.H.¹, CASHMAN, P.H.¹, HEATON, J.S.² and GRIMMER, A.², (1)University of Nevada, Reno, Department of Geological Sciences and Engineering, MS 172, Reno, NV 89557, (2)Department of Geography, University of Nevada, Reno, Reno, 89557, sedrx24@gmail.com, sedrx24@gmail.com

JØRGENSEN, Flemming¹, SCHEER, Wolfgang², THOMSEN, Steen³, BURSCHIL, Thomas⁴, WIEDERHOLD, Helga⁴, KIRSCH, Reinhard², ROTH, Bjarke⁵ and AUKEN, Esben⁵, (1)Geological survey of Denmark and Greenland, GEUS, Lyseng Alle 1, Højbjerg, 8270, (2)Landesamt für Natur und Umwelt des Landes Schleswig-Holstein, Flintbek, 24220, Germany, (3)Nature Agency, Ribe, 6760, Denmark, (4)Leibniz Institute for Applied Geophysics, Stilleweg 2, Hannover, 30655, Germany, (5)Aarhus University, Aarhus, 8000, Denmark, flj@geus.dk, flj@geus.dk

EMERY, Eleanor¹, CONTRERAS, Ashley¹, COWLING, Margaret¹, PORTER, Claire², SIDDOWAY, Christine³ and MORIN, Paul², (1)Department of Geology, Colorado College, 14 E. Cache La Poudre St, Colorado Springs, CO 80903, (2)Polar Geospatial Center, University of Minnesota, Pillsbury Hall, 310 Pillsbury Drive SE, Minneapolis, MN 55455, (3)Department of Geology, Colorado College, 14 East Cache La Poudre, Colorado Springs, CO 80903, eleanor.emery@coloradocollege.edu, eleanor.emery@coloradocollege.edu

ABDELKAREEM, Mohamed¹, EL-BAZ, Farouk¹, GHONEIM, Eman², AKAWY, Ahmed³ and ASKALANY, Mohamed³, (1)Center for Remote Sensing, Boston University, 725 Commonwealth Avenue, Boston, MA 02215-1401, (2)Department of Geography and Geology, University of North Carolina, Wilmington, Wilmington, NC 28403, (3)Geology Department, South Valley University, Qena, 83523, Egypt, mismail@bu.edu, mismail@bu.edu

HENDRICKSON, Matthew J., Geology, University of St. Thomas, 2115 Summit Ave, St. Paul, MN 55105, STRONG, Nikki, Geology, Univ of Minnesota, St. Anthony Falls Laboratory, Mississippi River at 3rd Ave SE, Minneapolis, MN 55414, FARRIS, David W., Earth, Ocean and Atmospheric Science, Florida State University, 909 Antarctic Way, Tallahassee, FL 32306, O'DEA, Aaron, Center for Tropical Paleoecology and Archeology, Smithsonian Tropical Research Institute, Apartado 0843 - 03092, Panama, 03092, Panama and RODRIGUEZ, Felix, Smithsonian Tropical Research Institute, Balboa Ancon, Panama, 2072, Panama, matthew.hendrickson1@gmail.com, matthew.hendrickson1@gmail.com

SCHUMACHER, Matthew¹, WEHRFRITZ, Andrew² and ROSS, Martin², (1)Earth Sciences, St. Francis Xavier University, Antigonish, NS B2G 2W5, Canada, (2)Earth and Environmental Sciences, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada, mschumac@stfx.ca, mschumac@stfx.ca

WERDON, Melanie B. and BURNS, Laurel E., Alaska Division of Geological & Geophysical Surveys, 3354 College Rd, Fairbanks, AK 99709-3707, melanie.werdon@alaska.gov, melanie.werdon@alaska.gov

LABUSCH, L., Geosciences, University of Arkansas, 216 Ozark Hall, Fayetteville, AR 72701, ROWLAND, A.R., Geosciences, University of Arkansas, 113 Ozark Hall, Fayetteville, AR 72701, KUNK, M.J., US Geological Survey, MS 926A, National Center, Reston, VA 20192 and GUCCIONE, M.J., Deparment of Geosciences, Univ of Arkansas, OZAR-113, Fayetteville, AR 72701, arowland@uark.edu, arowland@uark.edu

SASSER, Stan H., BOYER, Lane M. and WALLACE, Debra A., Geosciences, University of Arkansas, 113 Ozark Hall, Fayetteville, AR 72701, ssasser@uark.edu, ssasser@uark.edu

MA, Lina, Oregon Department of Geology and Mineral Industries, 800 NE Oregon St. #28, Suite 965, Portland, OR 97232, MADIN, Ian P., Oregon Department of Geology and Mineral Industries, 800 NE Oregon St. #28 Suite 965, Portland, OR 97232, DUPLANTIS, Serin, Geology, Portland State University, 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97210 and WILLIAMS, Kendra, Department of Geology, Portland State University, P.O. Box 751, Portland, OR 97207-0751, lina.ma@dogami.state.or.us, lina.ma@dogami.state.or.us

FAUNT, Claudia C., U.S. Geological Survey, 4165 Spruance Road, Suite 200, San Diego, CA 92101 and SWEETKIND, Donald S., U.S Geological Survey, Mail Stop 973, Box 25046, Denver, CO 80225, dsweetkind@usgs.gov, dsweetkind@usgs.gov

HARVEY, Janet C., Geological and Planetary Sciences, California Institute of Technology, MC 100-23, Pasadena, CA 91125, MILLER, D.M., U.S. Geological Survey, 345 Middlefield Road, MS 973, Menlo Park, CA 94025 and STOCK, Joann, Div. Geological and Planetary Sciences, Calif. Inst. Tech, MC 252-21, 1200 E California Blvd, Pasadena, CA 91125, jch@caltech.edu, jch@caltech.edu

MNICH, Marissa, CONDIT, Christopher D. and SANTANGELO, Leah, Department of Geosciences, University of Massachusetts Amherst, Amherst, MA 01003, mmnich@geo.umass.edu, mmnich@geo.umass.edu

COOK, Joseph P.¹, PEARTHREE, Philip A.¹, HOUSE, P. Kyle², BIGIO, Erica³, ONKEN, Jill A.⁴ and YOUBERG, Ann⁵, (1)Arizona Geological Survey, 416 W. Congress, #100, Tucson, AZ 85701-1381, (2)U.S. Geological Survey, 2255 North Gemini Drive, Flagstaff, AZ 86001, (3)Laboratory of Tree-Ring Research, University of Arizona, 105 W. Stadium, University of Arizona, Tucson, AZ 85716, (4)Dept. of Geosciences, University of Arizona, Gould-Simpson Building #77, 1040 E 4th St, Tucson, AZ 85721, (5)Arizona Geological Survey, 416 W. Congress St, Suite 100, Tucson, AZ 85701, joe.cook@azgs.az.gov, joe.cook@azgs.az.gov

IANNO, Adam J., Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, ZHS 117, Los Angeles, CA 90089-0740 and PATERSON, Scott R., Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, Zumberge Hall of Science (ZHS), Los Angeles, CA 90089-0740, ianno@usc.edu, ianno@usc.edu

MIAO, Xiaodong, THOMASON, Jason F., BROWN, Steven E. and STOHR, Christopher, Illinois State Geological Survey, Prairie Research Institute, University of Illinois at Urbana-Champaign, 615 E. Peabody Dr, Champaign, IL 61820, miao@isgs.illinois.edu, miao@isgs.illinois.edu

CARLIN, Daniel E., KASHOUH, Michele V. and HOLBROOK, John M., Department of Earth & Environmental Sciences, The University of Texas at Arlington, 500 Yates Street, Arlington, TX 76019, daniel.carlin@mavs.uta.edu, daniel.carlin@mavs.uta.edu

ADAMS, Roberta S., Minnesota Geological Survey, University of Minnesota, 2642 University Avenue West, St. Paul, MN 551514, JENNINGS, Carrie E., Minnesota Geological Survey, University of Minnesota, 2642 University Avenue West, St. Paul, MN 55114 and REGAN, Charles P., Minnesota Pollution Control Agency, 520 Lafayette Rd N, St Paul, MN 55155, radams@umn.edu, radams@umn.edu

PHILLIPS, Andrew C.¹, GRIMLEY, David A.² and KEEFER, Donald A.¹, (1)Illinois State Geological Survey, Prairie Research Institute, University of Illinois, 615 E. Peabody Dr, Champaign, IL 61820, (2)Illinois State Geological Survey, University of Illinois, 615 E. Peabody Dr, Champaign, IL 61820, phillips@isgs.illinois.edu, phillips@isgs.illinois.edu

OLSEN, William C., Dakota County Water Resources Department, 14955 Galaxie Avenue, Apple Valley, MN 55124, bill.olsen@co.dakota.mn.us, bill.olsen@co.dakota.mn.us

ATKINSON, Lisa A.¹, ROSS, Martin A.², STUMPF, Andrew³ and DEY, William S.³, (1)Alberta Geology Survey, Alberta Energy Regulator, 4999-98 Avenue, Edmonton, AB T6B 2X3, Canada, (2)Earth and Environmental Sciences, University of Waterloo, 200 University Ave. West, Waterloo, ON N2L 3G1, Canada, (3)Prairie Research Institute, Illinois State Geological Survey, 615 E. Peabody Dr, Champaign, IL 61820, lisa.atkinson@aer.ca, lisa.atkinson@aer.ca

HEINZEL, Chad¹, BOSSHART, Nicholas², VASTINE, Jordan³, KREMAN, Drew⁴ and SCHMITZ, Jessica², (1)Earth Science, The University of Northern Iowa, Latham Hall, Cedar Falls, IA 50614, (2)University of Northern Iowa, Latham Hall, Cedar Falls, IA 50614, (3)University of Northern Iowa, The University of Northern Iowa, Latham Hall, Cedar Falls, IA 50614, (4)Geosciences, University of Arkansas, Ozark Hall, Fayetteville, AR 72701, chad.heinzel@uni.edu, chad.heinzel@uni.edu

LUCZAJ, John, Natural & Applied Sciences, University of Wisconsin - Green Bay, 2420 Nicolet Drive, Green Bay, WI 54311, luczajj@uwgb.edu, luczajj@uwgb.edu

CREASON, C. Gabe¹, HEKMAN, Marjorie S.¹, VALLOTTO, Marco¹, HALFEN, Alan F.² and JOHNSON, William C.², (1)Geology, University of Kansas, 1475 Jayhawk Blvd, 120 Lindley Hall, Lawrence, KS 66045, (2)Geography, University of Kansas, 1475 Jayhawk Blvd, Rm. 213, Lawrence, KS 66045, ccreason@ku.edu, ccreason@ku.edu

MUSCIETTA, Annelise, Earth and Atmospheric Sciences, SUNY Oneonta, Oneonta, NY 13820 and GROWDON, Martha, Earth and Atmospheric Sciences, SUNY College at Oneonta, Oneonta, NY 13820, muscav55@suny.oneonta.edu, muscav55@suny.oneonta.edu

SMITH, Theresa L., US Geological Survey, Woods Hole Science Center, 384 Woods Hole Road, Quissett Campus, Woods Hole, MA 02543-1598 and BOOTHROYD, Jon C., Rhode Island Geological Survey, Department of Geosciences, University of Rhode Island, 317 Woodward Hall, 9 East Alumni Avenue, Kingston, RI 02881, teriarati@comcast.net, teriarati@comcast.net

SECK, Alimatou, Department of Chemical, Biochemical & Environmental Engineering and Center for Urban Environmental Research and Education, University of Maryland, Baltimore Country, 1000 Hilltop Circle, TRC room 105, Baltimore, MD 21250, WELTY, Claire, Department of Chemical, Biochemical & Environmental Engineering and Center for Urban Environmental Research and Education, University of Maryland, Baltimore County, 1000 Hilltop Circle, TRC Room 102, Baltimore, MD 21250, COLE, Joshua, Center for Urban Environmental Research and Education, University of Maryland, Baltimore County, 1000 Hilltop Circle, TRC Room 102, Baltimore, MD 21250 and MYERS, Thomas, Department of Geography and Environmental Systems and Center for Urban Environmental Research and Education, University of Maryland, Baltimore Country, 1000 Hilltop Circle, TRC room 105, Baltimore, MD 21250, aseck1@umbc.edu, aseck1@umbc.edu

SEN, Pragnyadipta, Department of Geology, SUNY Oneonta, Oneonta, NY 13820, MARSHAK, Stephen, Dept. of Geology, Univ. of Illinois, 1301 W. Green St, Urbana, IL 61801, BURMEISTER, Kurtis C., Department of Geological & Environmental Sciences, University of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, MAJERCZYK, Chris, Department of Geology, University of Illinois at Urbana-Champaign, 1301 West Green Street, Urbana, IL 61801, YAKOVLEV, Petr, Department of Geological Sciences, University of Michigan, 2534 C.C. Little Building, 1100 North University Ave, Ann Arbor, MI 48109 and KUIPER, Yvette D., Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, pragnyadipta.sen@oneonta.edu, pragnyadipta.sen@oneonta.edu

DAVIAS, Michael, Stamford, CT 06907 and GILBRIDE, Jeanette L., North Carolina State University, Raleigh, NC 27695, michael@cintos.org, michael@cintos.org

BASSETT, Seth¹, GREEN, Richard C.¹, WILLIAMS, Christopher P.² and BURDETTE, Kevin¹, (1)Florida Geological Survey, 903 West Tennessee Street, Tallahassee, FL 32304-7700, (2)Florida Geological Survey, 3000 Commonwealth Blvd Ste 1, Tallahassee, FL 32303, seth.bassett@dep.state.fl.us, seth.bassett@dep.state.fl.us

BROCK, Candice, Earth Sciences, University of Memphis, Rm 206 Johnson Hall, Memphis, TN 38152, LARSEN, Daniel, Department of Earth Sciences, University of Memphis, Johnson Hall, Rm 1, Memphis, TN 38152, MACHIN, Sarah, Earth Sciences, University of Memphis, Johnson Hall, Memphis, TN 38152 and MUNGER, Zackary, Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24060, cfbrock@memphis.edu, cfbrock@memphis.edu

ALLISON, David T., Earth Sciences, University of South Alabama, Dept. of Earth Sciences 136 LSCB, 307 N. University Blvd, Mobile, AL 36688 and TULL, James F., Geological Sciences, Florida State University, Tallahassee, FL 32306, dallison@jaguar1.usouthal.edu, dallison@jaguar1.usouthal.edu

MCCLELLAN, Elizabeth¹, JESSEE, Marcus² and YONTS, Jason², (1)Geology, Radford University, P.O. Box 6939, 101 Reed Hall, Radford, VA 24142, (2)Dept. of Geology, Radford University, P.O. Box 6939, 101 Reed Hall, Radford, VA 24142, emcclellan@radford.edu, emcclellan@radford.edu

ANDREWS Jr., William, Kentucky Geological Survey, University of Kentucky, 228 Mining & Mineral Resources Bldg, Lexington, KY 40506-0107, wandrews@uky.edu, wandrews@uky.edu