GSA Annual Meeting in Phoenix, Arizona, USA - 2019

LYONS, Timothy W. and DIAMOND, Charles W., Department of Earth and Planetary Sciences, University of California, Riverside, CA 92521

SHIELDS, Graham A., Department of Earth Sciences, University College London, Gower Street, London, WC1E 6BT and MILLS, Benjamin J., School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom

MACDONALD, Francis A., Department of Earth Science, UCSB, 2111 Webb Hall, Santa Barbara, CA 93109 and FLOWERS, Rebecca, Department of Geological Sciences, University of Colorado, Campus Box 399, 2200 Colorado Ave, Boulder, CO 80309

LI, Zheng-Xiang¹, PISAREVSKY, Sergei¹, WU, Lei¹, LOU, Yebo¹ and ERNST, Richard E.², (1)Earth Dynamics Research Group, School of Earth and Planetary Sciences, Curtin University, Bentley, Perth, WA GPO Box U1987, Australia, (2)Department of Earth Science, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1N5B6, Canada; Faculty of Geology and Geography, Tomsk State University, 36 Lenin Ave, Tomsk, 634050, Russian Federation

DEHLER, Carol M.¹, SCHMITZ, Mark D.², BULLARD, Abigail R.¹, BLAKEY, Ronald³, KARLSTROM, Karl E.⁴ and TIMMONS, J. Michael⁵, (1)Department of Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322, (2)Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535, (3)Colorado Plateau Geosystems, 1663 Chamisal ct, Carlsbad, CA 92011, (4)Department of Earth & Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, (5)New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801

ROONEY, Alan, Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511

PORTER, Susannah M., Department of Earth Science, University of California Santa Barbara, Santa Barbara, CA 93106

SUMMONS, Roger E., Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, MIT, E25-633, 77 Massachusetts Ave, Cambridge, MA 02139, CUI, Xingqian, Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 45 Carleton Street, Cambridge, MA 02139, ROCHER, Donald, GeoMark Research, 9748 Whithorn Dr, Houston, TX 77095, ZUMBERGE, John E., GeoMark Research, Ltd, 9748 Whithorn Drive, Houston, TX 77095 and ZUMBERGE, J. Alex, Earth Sciences, University of California, Riverside, Riverside, CA 92521-0423

ERWIN, Douglas H., Dept. of Paleobiology MRC-121, Smithsonian Institution, Washington, DC 20013-7012

KAUFMAN, Alan J., Department of Geology and Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD 20742, KRIESFELD, Les, Monash University, School of Earth, Atmosphere and Environment, Melbourne, 3800, Australia, VICKERS-RICH, Patricia, School of Geosciences, Monash University, Clayton, 3800, Australia and NARBONNE, Guy M., Queens University, Department of Geological Sciences and Geological Engineering, 36 Union Street, Kingston, ON K7L 3N6, Canada

JIANG, Ganqing, Department of Geoscience, University of Nevada, Las Vegas, NV 89154-4010

XIAO, Shuhai¹, CUI, Huan², KANG, Junyao¹, MCFADDEN, Kathleen A.³, KAUFMAN, Alan J.⁴, KITAJIMA, Kouki⁵, FOURNELLE, John H.⁶ and VALLEY, John W.⁷, (1)Department of Geosciences, Virginia Tech, Blacksburg, VA 24061, (2)Analytical, Environmental, and Geo- Chemistry Group, Division of Earth System Science, Free University of Brussels (Vrije Universiteit Brussel), Brussels, 1050, Belgium; ET-HOME (Evolution and Tracers of the Habitability of Mars and Earth) Astrobiology Research Consortium, Brussels, 1050, Belgium; NASA Astrobiology Institute & WiscSIMS, Department of Geoscience, University of Wisconsin, Madison, WI 53706, (3)ConocoPhillips Company, 600 N Dairy Ashford, Houston, TX 77077, (4)Department of Geology and Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD 20742, (5)Department of Geoscience, University of Wisconsin-Madison, Madison, WI 53706, (6)Department of Geoscience, University of Wisconsin, Madison, WI 53706, (7)WiscSIMS Laboratory, Department of Geoscience, University of Wisconsin–Madison, Madison, WI 53706