GSA Annual Meeting in Denver, Colorado, USA - 2016

Session No. 144
Monday, 26 September 2016: 1:30 PM-5:30 PM
Mile High Ballroom 3B (Colorado Convention Center)

T227. Time Matters: Celebrating the Scientific Legacy of Samuel A. Bowring

GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Structural Geology and Tectonics Division; Smithsonian Institution; GSA International/International Interdisciplinary Interest Group
Robert S. Hildebrand, Anke Friedrich and Marion E. Bickford, Advocates
1:30 PM
SAMUEL A. BOWRING-THE EARLY PROFESSIONAL YEARS (Invited Presentation)
VAN SCHMUS, W.R., Dept. of Geology, Univ of Kansas, 1475 Jayhawk Blvd, Room 120, Lawrence, KS 66045-7613, rvschmus@ku.edu
1:45 PM
SAM BOWRING’S ROLE IN REDEFINING U-PB GEOCHRONOLOGY IN THE SOUTHWESTERN USA (Invited Presentation)
KARLSTROM, Karl E., Department of Earth and Planetary Sciences, University of New Mexico, Northrop Hall, 221 Yale Blvd NE, University of New Mexico, Albuquerque, NM 87131, WILLIAMS, Michael L., Department of Geosciences, University of Massachusetts, Amherst, 611 North Pleasant Street, Amherst, MA 01003, CONDIE, Kent C., Earth and Environmental Science, New Mexico Tech, Socorro, NM 87801, HAWKINS, David P., Department of Geosciences, Wellesley College, 106 Central St, Wellesley, MA 02481, CHAMBERLAIN, Kevin R., Dept. of Geology and Geophysics, University of Wyoming, Dept. 3006, 1000 University Avenue, Laramie, WY 82071 and CROWLEY, James L., Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535, kek1@unm.edu
2:00 PM
COLLISION, SLAB FAILURE MAGMATISM, CORDILLERAN BATHOLITHS AND THE ORIGIN OF CONTINENTAL CRUST
HILDEBRAND, Robert S., Department of Earth & Planetary Sciences, University of California, Davis, CA 95616-8605 and WHALEN, Joseph B., Geological Survey of Canada, 601 Booth Street, Ottawa, ON K1A 0E8, Canada, bob@roberthildebrand.com
2:15 PM
THE EARTHTIME INITIATIVE: ACCELERATING ADVANCES IN GEOCHRONOLOGY SINCE 2003
CONDON, Daniel1, BOWRING, James F.2, CONNELLY, James N.3, ERWIN, Douglas H.4, HE, Huaiyu5, HEIZLER, Matthew T.6, HEMMING, Sidney R.7, HODGES, Kip V.8, HORSTWOOD, Matthew1, JOHNSON, Kirk9, KUIPER, Klaudia10, MARK, Darren F.11, MCLEAN, Noah12, MORGAN, Leah E.13, PARRISH, Randall1, RAMEZANI, Jahandar14, RASBURY, Troy15, RENNE, Paul R.16, ROONEY, Alan D.17, SADLER, Peter18, SCHALTEGGER, Urs19, SCHMITZ, Mark D.20, SCHOENE, Blair21, SINGER, Brad S.22, TURRIN, Brent23, VON QUADT, Albrecht24, WALKER, Douglas12, WANG, Chengshan25, WU, Huaichun26 and WIJBRANS, Jan R.10, (1)NERC Isotope Geoscience Laboratory, British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom, (2)Department of Computer Science, College of Charleston, Charleston, SC 29424, (3)Centre for Star and Planet Formation, Geological Museum, Copenhagen University, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark, (4)Dept. of Paleobiology, Smithsonian Institution, Washington, DC 20013-7012, (5)State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China, (6)New Mexico Bureau of Geology & Mineral Resources, New Mexico Tech, 801 Leroy Place, Socorro, NM 87801, (7)Earth and Environmental Science, Long Island University, Brookville, NY 11548, (8)School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, (9)National Museum of Natural History, Smithsonian Institution, Office of the Director, MRC 106, P.O. Box 37012, Washington, NY 20013-7012, (10)Faculty of Earth and Life Sciences, Vrije Universiteit, 1085 De Boelelaan, Amsterdam, 1081 HV, Netherlands, (11)Scottish Universities Environmental Research Centre, (SUERC), Rankine Avenue, East Kilbride, G75 0QF, United Kingdom, (12)Department of Geology, The University of Kansas, 1475 Jayhawk Blvd., Lindley Hall, Lawrence, KS 66045, (13)US Geological Survey, Denver Federal Center, MS 963, Denver, CO 80225, (14)Dept. of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, (15)Department of Geosciences, Stony Brook University, Stony Brook, NY 11794-2100, (16)Berkeley Geochronology Center, 2455 Ridge Rd., Berkeley, CA 94709, (17)Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, (18)Department of Earth Sciences, University of California, Riverside, Riverside, CA 92521, (19)Section of Earth and Environmental Sciences, University of Geneva, rue des Maraîchers 13, Geneva, 1205, Switzerland, (20)Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535, (21)Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544, (22)Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53076, (23)Department of Earth & Planetary Sciences, Rutgers University, 610 Taylor Rd, Piscataway, NJ 08854, United States, Piscataway, NJ 08854, (24)ETH Zurich, Institute of Geochemistry and Petrology, Clausiusstrasse 25, Zurich, 8092, Switzerland, (25)Research Center for Tibetan Geology, Beijing University of Geosciences, 29 Xueyuan Road, Beijing, 100083, (26)School of Ocean Sciences, China University of Geosciences, Beijing, Beijing, 100083, China, dcondon@bgs.ac.uk
2:30 PM
BE CAREFUL WHAT YOU WISH FOR- A TRIBUTE TO SAM BOWRING
RENNE, Paul R., Berkeley Geochronology Center, 2455 Ridge Rd., Berkeley, CA 94709; Earth and Planetary Science, UC Berkeley, Berkeley, CA 94720 and MUNDIL, Roland, Berkeley Geochronology Center, 2455 Ridge Rd, Berkeley, CA 94709, prenne@bgc.org
2:45 PM
THE PERSISTENT CHALLENGE OF ACCURATELY AND PRECISELY DATING IMPACT EVENTS
HODGES, K.V.1, VAN SOEST, M.C.1, MERCER, C.M.1, CARTWRIGHT, J.A.1, HORNE, A.G.1, BRUNNER, A.E.1, MCDONALD, C.S.1 and SCHOENE, B.2, (1)School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, (2)Department of Geosciences, Princeton University, 208 Guyot Hall, Washington Road, Princeton, NJ 08544-1003, kvhodges@asu.edu
3:00 PM
EXTRACTING GEOLOGIC AGES FROM ISOTOPICALLY-DISTINCT NANOSCALE RESERVOIRS OF PB IN DISCORDANT ZIRCON BY ATOM PROBE MICROSCOPY
PETERMAN, Emily M.1, REDDY, Steven2, SAXEY, David W.3, SNOEYENBOS, David R.4, KYLANDER-CLARK, Andrew5, RICKARD, William D.A.3 and FOUGEROUSE, Denis3, (1)Earth and Oceanographic Science, Bowdoin College, 6800 College Station, Brunswick, ME 04011, (2)Applied Geology, Curtin University, Perth, WA6102, Australia; Geoscience Atom Probe, Advanced Resource Characterisation Facility, Curtin University, Perth, WA6102, Australia, (3)Geoscience Atom Probe, Advanced Resource Characterisation Facility, Curtin University, Perth, WA6102, Australia, (4)Dept. of Geosciences, University of Massachusetts, Amherst, Amherst, MA 01003, (5)Department of Earth Science, University of California, Santa Barbara, CA 93106, epeterma@bowdoin.edu
3:15 PM
AGE OF THE FISH CANYON TUFF STANDARD RE-EVALUATED
KUIPER, Klaudia, Faculty of Earth Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, Amsterdam, 1081 HV, Netherlands, SAHY, Diana, NERC Isotope Geosciences Laboratory, British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom, SIERRO, Francisco Javier, Geology, University of Salamanca, Salamanca, Spain, HILGEN, Frits, Department of Earth Sciences, Utrecht University, Budapestlaan 4, Utrecht, 3584 CD, Netherlands, ZEEDEN, Christian, Department of Geography, RWTH Aachen University, Wüllnerstr. 5b, Aachen, D-52056, Germany and CONDON, Daniel, NERC Isotope Geoscience Laboratory, British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom, k.f.kuiper@vu.nl
 
3:30 PM
Break
3:45 PM
PETROCHRONOLOGY OF THE FISH CANYON TUFF
SCHMITZ, Mark D., Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725 and CROWLEY, James L., Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535, markschmitz@boisestate.edu
4:00 PM
TEMPO AND MODE OF NEOPROTEROZOIC GLACIATIONS: AN UPDATE
ROONEY, Alan D.1, CONDON, Daniel2, MACDONALD, Francis A.1 and ZHU, Maoyan3, (1)Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, (2)NERC Isotope Geoscience Laboratory, British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom, (3)LPS, Nanjing Institute of Geology and Palaeontology, 39 East Beijing Road, Nanjing, 210008, China, alanrooney@fas.harvard.edu
4:30 PM
MOLECULAR CLOCKS FOR MOLECULES: AN INTERSECTION OF GEOBIOLOGY AND GEOCHRONOLOGY
SUMMONS, Roger E.1, GOLD, David A.2, CARON, Abigail M.1 and FOURNIER, Gregory P.3, (1)Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, MIT, E25-633, 77 Massachusetts Ave, Cambridge, MA 02139, (2)Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, (3)Earth, Atmospheric & Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, rsummons@mit.edu
4:45 PM
DECOUPLING OF WHOLE ROCK ND AND DETRITAL ZIRCON U-PB PROVENANCE DETERMINATIONS-AN EXAMPLE FROM THE CAMBRIAN WOOD CANYON FORMATION, SW NORTH AMERICA
FARMER, G. Lang, University of Colorado Boulder, Department of Geological Sciences, Boulder, CO 80309, FEDO, Christopher M., Department of Earth & Planetary Sciences, University of Tennessee, 1412 Circle Drive, Knoxville, TN 37996 and MUHLBAUER, Jason, Department of Earth & Planetary Sciences, University of Tennessee, 1412 Circle Dr, Room 306, Knoxville, TN 37996, farmer@colorado.edu
5:00 PM
PROVENANCE AND DEPOSITIONAL SETTING OF THE PINAL SCHIST, SOUTHWESTERN ARIZONA AND SONORA
BICKFORD, M.E., Department of Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244-1070, CONDIE, Kent C., Earth and Environmental Science, New Mexico Tech, Socorro, NM 87801, HANAN, Barry B., Geological Sciences, San Diego State University, San Diego, CA 92182-1020, MUELLER, Paul A., Department of Geological Sciences, University of Florida, Gainesville, FL 32611 and KAMENOV, George D., Department of Geological Sciences, University of Florida, 241 Williamson Hall, PO Box 112120, Gainesville, FL 32611, mebickfo@syr.edu
5:15 PM
OFF-PLANET GEOCHRONOLOGY: ONGOING RESULTS OF RADIOMETRIC AND COSMOGENIC DATING ON MARS
FARLEY, Kenneth A.1, COHEN, Barbara2, MAHAFFY, Paul R.3, MALESPIN, Charles3, MARTIN, Peter1, SCHWENZER, Susanne4 and VASCONCELOS, Paulo5, (1)Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, (2)NASA Marshall Space Flight Center, 320 Sparkman Dr, Huntsville, AL 35812, (3)NASA Goddard Space Flight Center, Code 699.0, Greenbelt, MD 20771, (4)Department of Environment, Earth and Ecosystems, The Open University, Walton Hall, Milton Keynes, MK7 6AA, United Kingdom, (5)School of Earth Sciences, University of Queensland, Brisbane, QC, Australia, farley@gps.caltech.edu
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