GSA Annual Meeting in Phoenix, Arizona, USA - 2019

TREMBLAY, Marissa M., Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907; Scottish Universities Environmental Research Centre, Rankin Avenue, East Kilbride, Scotland, G75 0QF, United Kingdom, SPRAIN, Courtney J., Department of Geological Sciences, University of Florida, Williamson Hall, Gainseville, FL 32611; Geomagnetism Laboratory, Department of Earth, Ocean and Ecological Sciences, University of Liverpool, Liverpool, L69 7ZE, United Kingdom, MARK, Darren, Scottish Universities Environmental Research Centre, Rankin Avenue, East Kilbride, Scotland, G75 0QF, United Kingdom; Department of Earth and Environmental Sciences, University of St Andrews, Irvine Building, St Andrews, KY16 9AL, United Kingdom and SANDERSON, David, Scottish Universities Environmental Research Centre, Rankin Avenue, East Kilbride, Scotland, G75 0QF, United Kingdom

BROWN, Nathan D., Department of Earth and Planetary Science, University of California, Berkeley, 307 McCone Hall, Berkeley, CA 94720 and MOON, Seulgi, Department of Earth, Planetary, and Space Science, University of California, Los Angeles, 595 Charles Young Dr. East, Los Angeles, CA 90095

PERILLA-CASTILLO, Paula J., Earth and Planetary Sciences, University of Tennessee Knoxville, 1621 Cumberland Avenue, Knoxville, TN 37996, MCKAY, Larry D., Dept. of Earth and Planetary Sciences, College of Arts and Sciences, The University of Tennessee, Knoxville, TN 37996-1410 and HORN, Sally P., Department of Geography, University of Tennessee Knoxville, 304 Burchfiel Geography Building, 1000 Phillip Fulmer Way, Knoxville, TN 37996

MOHR, Michael T., Department of Geosciences, Boise State University, Boise, ID 83725, SAMUELS, Joshua X., Don Sundquist Center of Excellence in Paleontology, East Tennessee State University, Johnson City, TN 37614, FAMOSO, Nicholas A., John Day Fossil Beds National Monument, National Park Service, Kimberly, OR 97848, TRAYLER, Robin B., Department of Life and Environmental Sciences, University of California, Merced, Merced, CA 95343, LAIB, Amanda, Boise, ID 83725, SCHMITZ, Mark, Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725 and LOVELOCK, Elizabeth Clare, Kimberly, OR 97848

QUINN, Daven P.¹, SCHAEN, Allen², SUNDELL, Kurt E.³, GEHRELS, George⁴, GORING, Simon⁵, MARCOTT, Shaun A.⁶, MEYERS, Stephen R.⁷, PETERS, Shanan E.⁸, ROSS, Jake⁹, SCHMITZ, Mark D.¹⁰, SINGER, Bradley S.⁷ and WILLIAMS, John W.¹¹, (1)University of Wisconsin – Madison Department Of Geoscience, 1215 W Dayton St., Madison, WI 53706, (2)Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53706, (3)Department of Geosciences, University of Arizona, Tucson, AZ 85721, (4)Dept. of Geosciences, University of Arizona, Tucson, AZ 85721, (5)Department of Geography, University of Wisconsin, 550 N Park St, Madison, WI 53706, (6)Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton St, Madison, WI 53706, (7)Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St., Madison, WI 53706, (8)Department of Geoscience, University of Wisconsin–Madison, 1215 W. Dayton St, Madison, WI 53706, (9)New Mexico Geochronology Research Laboratory, New Mexico Bureau of Geology and Mineral Resources, 801 Leroy, Socorro, NM 87801, (10)Department of Geosciences, Boise State University, Boise, ID 83725, (11)Department of Geography, University of Wisconsin-Madison, 550 N Park St, Madison, WI 53706

CORBETT, Lee B. and BIERMAN, Paul R., Department of Geology, University of Vermont, Delehanty Hall, 180 Colchester Ave, Burlington, VT 05405

FLOWERS, Rebecca M., Department of Geological Sciences, University of Colorado Boulder, Boulder, CO 80309, ARROWSMITH, J. Ramon, School of Earth and Space Exploration, Arizona State Univ, Tempe, AZ 85281-1404, MCCONNELL, Vicki S., Executive Director, Geological Society of America, PO Box 9140, Boulder, CO 80301, METCALF, James R., Department of Geological Sciences, University of Colorado, Boulder, CO 80309, RITTENOUR, Tammy M., Department of Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322, SCHOENE, Blair, Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544 and ERIKSSON, Susan C., Eriksson Associates LLC, 3980 Broadway, Suite 103 #168, Boulder, CO 80304

TRIPATHY-LANG, Alka, Berkeley Geochronology Center, Berkeley, CA 94709, FOX, Matthew, Department of Earth Science, University College London, London, WC1E 6BS, United Kingdom, SHUSTER, David L., Department of Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94720, CUFFEY, Kurt M., Department of Geography, University of California, Berkeley, Berkeley, CA 94720 and STOCK, Greg M., National Park Service, Yosemite National Park, El Portal, CA 95318

CRUZAN, Jordan D., Department of Geography, Geology and Planning, Missouri State University, 901 S. National Ave, Springfield, MO 65897 and MCKAY, Matthew P., Department of Geosciences, Missouri State University, 901 S National Ave, Springfield, MO 65897

HERRIOTT, Trystan M.¹, CROWLEY, James L.², SCHMITZ, Mark D.³, WARTES, Marwan A.¹ and GILLIS, Robert J.¹, (1)Alaska Division of Geological & Geophysical Surveys (DGGS), 3354 College Rd, Fairbanks, AK 99709-3707, (2)Department of Geosciences, Boise State University, Boise, ID 83725, (3)Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535

ROHRER, Riley Frances¹, JOHNSON, Thomas A.¹, COTTLE, John M.², LARSON, Kyle P.³ and KYLANDER-CLARK, Andrew R.C.⁴, (1)Department of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106, (2)Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106, (3)Earth, Environmental and Geographic Sciences, University of British Columbia, Okanagan, 3247 University Way, Kelowna, BC V1V 1V7, Canada, (4)Earth Science, University of California Santa Barbara, 1006 Webb Hall, University of California, Santa Barbara, CA 93106

MCDANNELL, Kalin¹, PINET, Nicolas², CURRIE, Lisel¹, O’SULLIVAN, Paul³, ZEITLER, Peter⁴ and METCALF, James⁵, (1)Natural Resources Canada, Geological Survey of Canada, 3303 33 St. NW, Calgary, AB T2L 2A7, Canada, (2)Natural Resources Canada, Geological Survey of Canada, 490 de la Couronne, Quebec, QC G1K 9A9, Canada, (3)GeoSep Services, 1521 Pine Cone Rd, Moscow, ID 83843, (4)Earth and Environmental Sciences, Lehigh University, 1 W Packer Ave, Bethlehem, PA 18015, (5)Department of Geological Sciences, University of Colorado Boulder, UCB 399, Boulder, CO 80309

SCHOENE, Blair, Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544 and SZYMANOWSKI, Dawid, Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544