GSA Annual Meeting in Phoenix, Arizona, USA - 2019

LAABS, Benjamin J., Geosciences, North Dakota State University, Stevens Hall, 1340 Bolley Dr #201, Fargo, ND 58102, OVIATT, Charles G., Department of Geology, Kansas State University, Manhattan, KS 66506 and JEWELL, Paul, Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84103

HODELKA, Bailee¹, MCGLUE, Michael M.¹, PALACIOS-FEST, Manuel R.² and ZIMMERMAN, Susan Herrgesell³, (1)Department of Earth and Environmental Sciences, University of Kentucky, Lexington, KY 40506, (2)Terra Nostra Earth Sciences Research LLC, Tucson, AZ 85740, (3)Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, P.O. Box 808, L-397, Livermore, CA 94550

KOETTER, Sabrina, Earth and Environmental Sciences, Wesleyan University, Middletown, CT 06457, BRUMBERGER, Haley, Earth and Environmental Sciences, Wesleyan University, Middletown, CT 06459, CAULEY, Christina N., Earth & Enviromental Sciences, Wesleyan University, 265 Church Street, Middletown, CT 06459, THOMAS, Ellen, Geology and Geophysics and Department of Earth and Environmental Sciences, Yale University and Wesleyan University, P O Box 208109, New Haven, CT 06520-8109 and VAREKAMP, Johan C., Dept. of Earth & Environmental Sciences, Wesleyan University, 265 Church Street, Middletown, CT 06459

MURPHY, Collin, Department of Earth and Environmental Sciences and Large Lakes Observatory, University of Minnesota Duluth, 1114 Kirby Drive Heller Hall, 229, Duluth, MN 55812, STEINMAN, Byron A., Department of Earth and Environmental Sciences and Large Lakes Observatory, University of Minnnesota Duluth, 1114 Kirby Drive Heller Hall 229, Duluth, MN 55812, POMPEANI, David P., Department of Geography, Kansas State University, 1002 Seaton Hall, 920 N. 17th Street, Manhattan, KS 66506, SCHREINER, Kathryn, Large Lakes Observatory and Department of Chemistry & Biochemistry, University of Minnesota Duluth, 2205 E 5th St, Duluth, MN 55812 and DEPASQUAL, Seth, Cultural Resources, Isle Royale National Park, Houghton, MI 49931

LAROSE, Kayleen Mary, Environmental Science and Policy, Plymouth State University, 45b birdie way, Laconia, NH 03246

WAN, Elmira, U.S. Geological Survey, 345 Middlefield Rd, Menlo Park, CA 94025-3591, WALKUP, Laura C., U.S. Geological Survey, 345 Middlefield Rd, MS-973, Menlo Park, CA 94025, PRASSACK, Kari A., National Park Service, Hagerman Fossil Beds National Monument, 221 North State Street, PO Box 570, Hagerman, ID 83332 and HART, William K., Department of Geology and Environmental Earth Science, Miami University, Oxford, OH 45056

WALKUP, Laura C.¹, PRASSACK, Kari A.², WAN, Elmira³, STARRATT, Scott W.³ and HART, William K.⁴, (1)U.S. Geological Survey, 345 Middlefield Rd, MS-973, Menlo Park, CA 94025, (2)National Park Service, Hagerman Fossil Beds National Monument, 221 North State Street, PO Box 570, Hagerman, ID 83332, (3)U.S. Geological Survey, 345 Middlefield Rd, Menlo Park, CA 94025-3591, (4)Department of Geology and Environmental Earth Science, Miami University, Oxford, OH 45056

RAMIREZ, Gabriela Yvonne, Geosciences and Geological and Petroleum Engineering, Missouri University of Science and Technology, 1201 N State St, Rolla, MO 65409; Geosciences and Geological and Petroleum Engineering, Missouri University of Science and Technology, 1201 N State St, Rolla, MO 65409, LOCMELIS, Marek, Department of Geosciences and Geological and Petroleum Engineering, Missouri University of Science & Technology, 129 McNutt Hall, 1400 North Bishop Avenue, Rolla, MO 65409 and OBRIST-FARNER, Jonathan, Missouri University of Science and Technology, Rolla, MO 65409

ZHANG, Wentao¹, OBRIST-FARNER, Jonathan² and YANG, Wan¹, (1)Geology and Geophysics Program, Missouri University of Science and Technology, Rolla, MO 65409, (2)Missouri University of Science and Technology, Rolla, MO 65409

BUCKLEY, Kasey L., Department of Geosciences and Geological and Petroleum Engineering, Missouri University of Science and Technology, Rolla, MO 65409 and OBRIST-FARNER, Jonathan, Missouri University of Science and Technology, Rolla, MO 65409

KEARNEY, John C. and JOHNSON, Claudia C., Department of Earth and Atmospheric Sciences, Indiana University, 1001 E. Tenth St., Bloomington, IN 47405-1405

DUONG, Lisa N.¹, BASH, Jennifer G.², DEOCAMPO, Daniel M.¹, GEBREGIORGIS, Daniel¹, NJAU, Jackson K.³, MCHENRY, Lindsay J.⁴, STANISTREET, Ian G.⁵, STOLLHOFEN, Harald⁶, SCHICK, Kathy⁷, TOTH, Nick⁷ and DEINO, Alan L.⁸, (1)Department of Geosciences, Georgia State University, 24 Peachtree Center Ave NE, Atlanta, GA 30303, (2)Geosciences, Georgia State University, Atlanta, GA 30303, (3)Department of Earth and Atmospheric Sciences, Indiana University, 1001 E. 10th St., Bloomington, IN 47405, (4)Geosciences, UW Milwaukee, PO Box 413, Milwaukee, WI 53201, (5)Department of Earth & Ocean Sciences, University of Liverpool, Brownlow Street, Liverpool, L69 3BX, United Kingdom, (6)GeoZentrum Nordbayern, Friedrich-Alexander-University (FAU), Erlangen-Nürnberg, 91054 Erlangen, Germany, (7)Stone Age Institute, Indiana University, Bloomington, IN 47407, (8)Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709

BENAVENTE, Cecilia Andrea¹, MANCUSO, Adriana Cecilia¹, BOHACS, Kevin M.² and IRMIS, Randall B.³, (1)Instituto Argentino de Nivología Glaciología y Ciencias Ambientales (IANIGLA), CONICET, Av. Adrián Ruiz Leal, Parque ral. San Martín CC 330, Mendoza, 5500, Argentina, (2)KMBohacs GEOconsulting, 10018 Sugar Hill Drive, Houston, TX 77042-1540, (3)Natural History Museum of Utah and Department of Geology & Geophysics, University of Utah, 301 Wakara Way, Salt Lake City, UT 84108-1214