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

FLOWERS, Rebecca M.¹, BAUGHMAN, Jaclyn S.¹, JOHNSON, Joshua E.², LANDMAN, Rachel L.³, STANLEY, Jessica¹, WEISBERG, Wesley R.⁴ and METCALF, James R.¹, (1)Department of Geological Sciences, University of Colorado Boulder, Boulder, CO 80309, (2)Department of Geological Sciences, University of Colorado, Campus Box 399, 2200 Colorado Ave, Boulder, CO 80309, (3)Department of Geological Sciences, University of Colorado, UCB 399, 2200 Colorado Avenue, Boulder, CO 80309, (4)Department of Geography, Geology and Planning, Missouri State University, 910 S John Q Hammons Pkwy, Springfield, MO 65897, rebecca.flowers@colorado.edu

GALSTER, Federico¹, OVTCHAROVA, Maria², SCHALTEGGER, Urs² and MÜNTENER, Othmar³, (1)Institute of Earth Sciences, University of Lausanne, Lausanne, 1015, Switzerland; Department of Geological Sciences, University of Texas, Austin, TX 78712-1722, (2)Section of Earth and Environmental Sciences, University of Geneva, rue des Maraîchers 13, Geneva, 1205, Switzerland, (3)Institute of Earth Sciences, University of Lausanne, Lausanne, 1015, Switzerland, federico.galster@unil.ch

WONG, Martin S., Department of Geology, Colgate University, Hamilton, NY 13346, GANS, Phillip B., Dept. of Earth Science, UC Santa Barbara, Santa Barbara, CA 93106-9630, ZEITLER, Peter, Earth & Environmental Sciences, Lehigh University, 1 West Packer Avenue, Bethlehem, PA 18015 and IDLEMAN, Bruce, Dept of Earth and Environmental Sciences, Lehigh University, Bethlehem, PA 18015, mswong@colgate.edu

HEMMING, Sidney R.¹, BRACHFELD, Stefanie A.², COOK, Carys³, LICHT, Kathy⁴, PIERCE, Elizabeth L.⁵, REINERS, Peter W.⁶, THOMSON, Stuart N.⁶, VAN DE FLIERDT, Tina⁷ and WILLIAMS, Trevor⁸, (1)Department of Earth and Environmental Sciences and Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, (2)Earth and Environmental Studies, Montclair State University, 252 Mallory Hall, Upper Montclair, NJ 07043, (3)Department of Geological Sciences, University of Florida, Gainesville, FL 32611-2120, (4)Department of Earth Sciences, Indiana University-Purdue University Indianapolis, 723 West Michigan Street, SL 118, Indianapolis, IN 46202, (5)Earth and Environmental Sciences, Columbia Universtiy, New York, NY 10025, (6)Department of Geosciences, University of Arizona, 1040 E. 4th St., Tucson, AZ 85721, (7)Department of Earth Science and Engineering, Imperial College, London, SW7 2AZ, United Kingdom, (8)Lamont-Doherty Earth Observatory, Palisades, NY 10964, sidney@ldeo.columbia.edu

ORME, Devon A.¹, GUENTHNER, William R.², LASKOWSKI, Andrew³ and REINERS, Peter W.³, (1)Department of Geological and Environmental Sciences, Stanford University, Braun Hall #118, 450 Serra Mall, Bldg 320, Stanford, CA 94305, (2)Department of Geology, University of Illinois, Urbana-Champaign, 152 Computer Applications Bldg, 605 E. Springfield Ave, Champaign, IL 61820, (3)Department of Geosciences, University of Arizona, Tucson, AZ 85721, dorme@email.arizona.edu

GINSTER, Ursula, Department of Geosciences, University of Arizona, 1040 4rth Street, Tucson, AZ 85721, REINERS, Peter W., Department of Geosciences, University of Arizona, 1040 E. 4th St., Tucson, AZ 85721, FARLEY, Ken A., Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125 and NASDALA, Lutz, Institute of Mineralogy and Crystallography, University of Vienna, Althanstr. 14, Wien, A-1090, Austria, uginster@email.arizona.edu

TREMBLAY, Marissa M., Department of Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94720; Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709, SHUSTER, David L., Department of Earth and Planetary Science, 479 McCone Hall, University of California, Berkeley, CA 94720; Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709, BALCO, Greg, Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709 and BADEN, Curtis W., Department of Geological Sciences, Stanford University, Stanford, CA 94305, mtremblay@berkeley.edu

MCQUARRIE, Nadine, Department of Geology & Planetary Science, University of Pittsburgh, Pittsburgh, PA 15260, GILMORE, Michelle E., Department of Geology & Planetary Science, University of Pittsburgh, Pittsburgh, PA 15206, RAK, Adam J., Geology and Planetary Science, University of Pittsburgh, Pittsburgh, PA 15260 and EHLERS, Todd A., Department of Geosciences, University of Tuebingen, Wilhelmstrasse 56, Tuebingen, 72074, Germany, nmcq@pitt.edu

STEVENS, Andrea L., Geosciences, University of Arizona, 1040 E. 4th Street, Tucson, AZ 85721, BALGORD, Elizabeth, Geosciences, University of Arizona, 1040 E 4th St, Tucson, AZ 85721 and CARRAPA, Barbara, Geosciences, University of Arizona, Gould-Simpson Building #77, 1040 E 4th St, Tucson, AZ 85721, andreastevens@email.arizona.edu

BONICH, Mariana B.¹, SAMSON, Scott D.², FLOWERS, Rebecca M.³, METCALF, James R.³ and FEDO, Christopher M.⁴, (1)Department of Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244-1070, (2)Department of Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244, (3)Department of Geological Sciences, University of Colorado Boulder, Boulder, CO 80309, (4)Department of Earth & Planetary Sciences, University of Tennessee, 1412 Circle Drive, Knoxville, TN 37996, mbbonich@syr.edu

FAYON, Annia K., Department of Earth Sciences, University of Minnesota, Minneapolis, MN 55455 and HANSEN, Lars, Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, OX1 3AN, United Kingdom, fayon001@umn.edu

MILLER, Hayden B.D.¹, MCKEON, Ryan E.², JOHNSON, Jena J.¹, FISCHER, Woodward W.¹, BEUKES, Nicholas J.³ and FARLEY, Kenneth A.¹, (1)Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, (2)Department of Earth Sciences, Dartmouth College, Hanover, NH 03766, (3)Department of Geology, University of Johannesburg, Auckland Park, 2006, South Africa, hbmiller@caltech.edu