2015 GSA Annual Meeting in Baltimore, Maryland, USA (1-4 November 2015)

HEAD, James W., Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912, James_Head@brown.edu

PLESCIA, Jeffrey, Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Drive, Laurel, MD 20723-6099, jeffrey.plescia@jhuapl.edu

SUSORNEY, Hannah C.¹, BARNOUIN, Olivier S.², ERNST, Carolyn M.² and NEUMANN, Gregory A.³, (1)Earth and Planetary Science, Johns Hopkins University, Baltimore, MD 21218, (2)Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, (3)Planetary Geodynamics Laboratory, NASA Goddard Space Flight Center, Mail Code 698, Greenbelt, MD 20771, hsusorn1@jhu.edu

SCHMERR, Nicholas C., Department of Geology, University of Maryland, Geology Building #237, College Park, MD 20742, BANKS, Maria E., Planetary Science Institute, Tucson, AZ 85719 and DAUBAR, Ingrid, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, nschmerr@umd.edu

COX, Rónadh, Geosciences, Williams College, Williams College, Williamstown, MA 01267 and BAUER, Aaron W., Geosciences, Williams College, Williamstown, MA 01267, rcox@williams.edu

EBEL, Denton S.¹, MAHMOOD, Shaun², JARET, Steven J.³, BIGOLSKI, John N.⁴, ALDOROTY, Rachel J.⁵, SESSA, Jocelyn A.⁶ and LANDMAN, Neil H.⁶, (1)Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West at 79th St, New York, NY 10024; Department of Earth and Environmental Sciences, Columbia University, Lamont-Doherty Earth Observatory, 61 Route 9W, Palisades, NY 10964; The Graduate Center, City University of New York, 365 Fifth Ave., New York, NY 10016, (2)Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West at 79th Street, New York, TX 10024-5192; Earth and Environmental Science, Wesleyan University, 45 Wyllys Ave, Middletown, CT 06459, (3)Department of Geosciences, Stony Brook University, Stony Brook, NY 11794-2100, (4)The Graduate Center, City University of New York, 365 Fifth Ave., New York, NY 10016; Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West at 79th St, New York, NY 10024, (5)Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, (6)Division of Paleontology, American Museum of Natural History, Central Park West at 79th St, New York, NY 10024, debel@amnh.org

GLASS, Billy P., Geological Sciences, University of Delaware, 255 Academy St, Newark, DE 19716, bglass@udel.edu

KOEBERL, Christian, Department of Lithospheric Research, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria, also of the Natural History Museum, Burgring 7, A-1010 Vienna, Austria, christian.koeberl@univie.ac.at

HARRIS, R. Scott, Fernbank Science Center, 156 Heaton Park Drive, Atlanta, GA 30307, SCHULTZ, Peter H., Department of Earth, Environmental, and Planetary Science, Brown University, P.O. Box 1846, Providence, RI 02912 and ZARATE, Marcelo Aristides, CONICET-Universidad Nacional de La Pampa, INCITAP, Avenida Uruguay 151, Santa Rosa, 6300, Argentina, scott.harris@fernbank.edu

SCHULZ, Toni¹, SACKL, Florian¹ and KOEBERL, Christian², (1)Department of Lithospheric Research, University of Vienna, Althanstrasse 14, Vienna, 1090, Austria, (2)Department of Lithospheric Research, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria, also of the Natural History Museum, Burgring 7, A-1010 Vienna, Austria, toni.schulz@univie.ac.at

TOHVER, Eric, School of Earth and Environment, University of Western Australia, 35 Stirling Highway, Perth, 6009, Australia, SCHMIEDER, Martin, Lunar and Planetary Institute, Houston, TX 77058, ERICKSON, Timmons M., Department of Applied Geology, Curtin Univ, PO Box 9000, Perth, 6102, Australia, LANA, Cristiano, Universidade Federal de Ouro Preto, Ouro Preto, 35.400-000, Brazil, TIMMS, Nick, Applied Geology, Curtin University, GPO Box U1987, Perth, W, Australia and JOURDAN, Fred, Western Australian Argon Isotope Facility, JdL Centre & Department of Applied Geology, Curtin University of Technology, GPO Box U1987, Perth, 6845, Australia, eric.tohver@uwa.edu.au

CHATTERJEE, Sankar, Geosciences, Museum of Texas Tech University, 3301 4th Street, Lubbock, TX 79409, sankar.chatterjee@ttu.edu