GSA Annual Meeting in Phoenix, Arizona, USA - 2019

CLAGUE, John J., Department of Earth Sciences, Simon Fraser University, 8888 University Dr., Burnaby, BC V6B 1R6, Canada

LUCKMAN, Brian H.¹, SPERLING, Bonnie¹ and OSBORN, Gerald², (1)Geography, University of Western Ontario, London, ON N6A 5C2, Canada, (2)Geoscience, University of Calgary, Calgary, AB T2N 1N4, Canada

HAWKINS, Adam C., Geography Program and Natural Resources and Environmental Studies Institute, University of Northern British Columbia, 3333 University Way, Prince George, BC V2N 4Z9, Canada, MENOUNOS, Brian, University of Northern British Columbia, 3333 University Way, Prince George, BC V2N 4Z9, Canada and GOEHRING, Brent M., Dept. of Earth and Environmental Sciences, Tulane University, 6823 St Charles Ave, New Orleans, LA 70118

CRUMP, Sarah E., Geological Sciences and Institute of Arctic and Alpine Research, University of Colorado – Boulder, Boulder, CO 80309, YOUNG, Nicolás E., Lamont-Doherty Earth Observatory, Columbia University, 219 Comer, 61 Route 9W - PO Box 1000, Palisades, NY 10964-8000, PENDLETON, Simon L., Geological Sciences and Institute of Arctic and Alpine Research, University of Colorado – Boulder, Boulder, CO 80309; Woods Hole Oceanographic Institute, Woods Hole, MA 02543, MILLER, Gifford H., INSTAAR and Geological Sciences, University of Colorado, Boulder, CO 80309-0450, ANDERSON, Robert S., Department of Geological Sciences and INSTAAR, University of Colorado, Boulder, CO 80309 and BRINER, Jason P., Department of Geology, University at Buffalo, 126 Cooke Hall, Buffalo, NY 14260

WILES, Gregory¹, GAGLIOTI, Ben², RACE, Victoria¹, CHARLTON, Joshua¹, ALLEY, Karen¹, GUNDERSON, Jeffrey³ and WIESENBERG, N.¹, (1)Department of Earth Sciences, The College of Wooster, 1189 Beall Ave., Wooster, OH 44691, (2)Tree Ring Lab, Lamont-Doherty Earth Observatory, Palisades, NY 10964, (3)Department of Geography and Byrd Polar Research Center, The Ohio State University, 1036 Derby Hall, 154 North Oval Mall, Columbus, OH 43210

CLARK, Douglas H., Geology, Western Washington University, 516 High st, Geology Dept, Bellingham, WA 98225

FOUNTAIN, Andrew G., Department of Geology, Portland State University, Portland, OR 97207-0751, GLENN, Bryce, Department of Geography; Department of Geology, Portland State University, Portland, OR 97201, GRAY, Christina, Department of Geology, Portland State University, 1721 SW Broadway, Portland, OR 97201 and MENOUNOS, Brian, University of Northern British Columbia, 3333 University Way, Prince George, BC V2N 4Z9, Canada

THACKRAY, Glenn D., Department of Geosciences, Idaho State University, Pocatello, ID 83209 and LINK, Paul K., Geosciences, Idaho State University, Pocatello, ID 83209

LAABS, Benjamin J., Geosciences, North Dakota State University, Stevens Hall, 1340 Bolley Dr #201, Fargo, ND 58102 and MUNROE, Jeffrey S., Department of Geology, Middlebury College, Middlebury, VT 05753

TULENKO, Joseph P.¹, CAFFEE, William¹, SCHWEINSBERG, Avriel D.¹, BRINER, Jason P.¹ and LEONARD, Eric M.², (1)Department of Geology, University at Buffalo, 126 Cooke Hall, Buffalo, NY 14260, (2)Department of Geology, Colorado College, Colorado Springs, CO 80903

DAVIS, P. Thompson¹, MARCOTT, Shaun A.², VAVRUS, Claire³, BARTH, Aaron², SHAKUN, Jeremy D.⁴ and CAFFEE, M.W.⁵, (1)Department of Natural & Applied Sciences, Bentley University, 175 Forest St, Waltham, MA 02452, (2)Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton St, Madison, WI 53706, (3)Department of Geoscience, University of Wisconsin-Madison, Madison, WI 53706, (4)Department of Earth and Environmental Sciences, Boston College, Chestnut Hill, MA 02467, (5)Department of Physics, Purdue University, 1396 PHYSICS BLDG, W. Lafayette, IN 47907-1396

MENOUNOS, Brian, University of Northern British Columbia, 3333 University Way, Prince George, BC V2N 4Z9, Canada

OSBORN, Gerald, Geoscience, University of Calgary, 2500 University Dr NW, Calgary, AB T2N1N4, Canada