2014 GSA Annual Meeting in Vancouver, British Columbia (19–22 October 2014)

Session No. 256
Tuesday, 21 October 2014: 1:00 PM-5:00 PM
220 (Vancouver Convention Centre-West)

T202. The Tonian-Cryogenian World

Paleontological Society; Geochemical Society; GSA Geobiology & Geomicrobiology Division
Leigh Anne Riedman, Erik A. Sperling, Phoebe Cohen and Susannah M. Porter, Advocates
Paper #
Start Time
1:00 PM
THE TECTONIC CONTEXT OF TONIAN TO CRYOGENIAN ENVIRONMENTAL AND EVOLUTIONARY CHANGE: INSIGHTS FROM RE-OS GEOCHRONOLOGY AND WEATHERING PROXIES
ROONEY, Alan D.1, STRAUSS, Justin V.1, BRANDON, Alan2, KARLSTROM, Karl E.3 and MACDONALD, Francis A.4, (1)Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, (2)Department of Earth and Atmospheric Sciences, University of Houston, 312 Science and Research Building 1, Houston, TX 77004, (3)Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, (4)Department of Earth and Planetary Sciences, Harvard University, 2, Cambridge, MA 02138, alanrooney@fas.harvard.edu
1:15 PM
CHUMP (CHUAR-UINTA MOUNTAIN-PAHRUMP) STRATA OF THE WESTERN U.S. RECORD CRETACEOUS – LIKE OCEAN ANOXIC EVENTS (OAES) BEFORE SNOWBALL EARTH
DEHLER, Carol M., Department of Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322-4505, GEHRELS, George, Dept. of Geosciences, University of Arizona, 1040 E. 4th Street, Tucson, AZ 85721, PORTER, Susannah M., Earth Science, University of California at Santa Barbara, Santa Barbara, CA 93106, COX, Grant, Earth and Planetary Sciences, McGill University, 3450 University St, Montreal, QC H3A 0E8, Canada, HEIZLER, Matthew T., New Mexico Bureau of Geology, NM Tech, Socorro, NM 87801, KARLSTROM, Karl E., Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, CROSSEY, Laura J., Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131-0001 and TIMMONS, J. Michael, New Mexico Bureau of Geology and Mineral Resources, New Mexico Tech, 801 Leroy Place, Socorro, NM 87801, carol.dehler@usu.edu
1:30 PM
GEOCHRONOLOGY REVEALS MULTI-MILLION YEAR DURATION OF THE END-CRYOGENIAN (MARINOAN) GLACIATION, NAMIBIA
HOFFMANN, Karl Heinz1, CONDON, Daniel2, PRAVE, A.R.3 and TAPSTER, Simon2, (1)Geological Survey of Namibia, Windhoek, Namibia, (2)NERC Isotope Geoscience Laboratory, British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom, (3)Earth and Environmental Sciences, University of St Andrews, Sy Andrews, KY16 9AL, United Kingdom, ap13@st-andrews.ac.uk
1:45 PM
SEA-LEVEL CHANGE FOLLOWING THE MARINOAN SNOWBALL EARTH DEGLACIATION
CREVELING, Jessica R., Geological and Planetary Sciences, California Institute of Technology, 1200 E. California Blvd, Pasadena, CA 91125 and MITROVICA, Jerry X., Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, jcrevel@gps.caltech.edu
2:00 PM
STRENGTHENING NEOPROTEROZOIC CHEMOSTRATIGRAPHIC CORRELATIONS WITH CARBON AND STRONTIUM ISOTOPES OF THE TAMBIEN GROUP, NORTHERN ETHIOPIA
TREMBLAY, Marissa M.1, SWANSON-HYSELL, Nicholas L.1, MALOOF, Adam C.2, CONDON, Daniel3, BEROFF, Sara E.1, TESEMA, Tadele4, HAILEAB, Bereket5, ALENE, Mulugeta4 and JENKIN, Gawen6, (1)Department of Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94720, (2)Department of Geosciences, Princeton University, Princeton, NJ 08544, (3)NERC Isotope Geoscience Laboratory, British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom, (4)School of Earth Sciences, Addis Ababa University, P.O.B. 1176, Addis Ababa, 1000, Ethiopia, (5)Geology, Carleton College, One North College Street, Northfield, MN 55057, (6)Department of Geology, University of Leicester, University Road, Leicester, LE1 7RH, United Kingdom, mtremblay@berkeley.edu
 
2:15 PM
Break
2:30 PM
A CONTINENTAL FLOOD BASALT DRIVER FOR NEOPROTEROZOIC CLIMATE AND OXYGENATION
HALVERSON, Galen P.1, COX, Grant2, HURTGEN, Matthew T.3, SANSJOFRE, Pierre4, KUNZMANN, Marcus1, STRAUSS, Justin V.5 and MACDONALD, Francis A.6, (1)Earth and Planetary Sciences, McGill University, 3450 University St, Montreal, QC H3A0E8, Canada, (2)Earth and Planetary Sciences, McGill University, 3450 University St, Montreal, QC H3A 0E8, Canada, (3)Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, (4)Laboratoire Domaines Océaniques, Université de Bretagne Occidentale, Place Copernic, Plouzane, 29280, France, (5)Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, (6)Department of Earth and Planetary Sciences, Harvard University, 2, Cambridge, MA 02138, galen.halverson@mcgill.ca
2:45 PM
DID MANTLE-DERIVED PHOSPHORUS FERTILIZE THE CRYOGENIAN OCEAN?
HORTON, Forrest, Department of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93016, forrest.horton@gmail.com
3:00 PM
OCEAN REDOX CONTROL ON NUTRIENT CYCLING IN THE EARLY NEOPROTEROZOIC
POULTON, Simon W.1, GUILBAUD, Romain1, ZHU, Maoyan2 and SHIELDS-ZHOU, Graham A.3, (1)School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom, (2)LPS, Nanjing Institute of Geology and Palaeontology, 39 East Beijing Road, Nanjing, 210008, China, (3)Department of Earth Sciences, University College London, Gower Street, London, WC1E 6BT, s.poulton@leeds.ac.uk
3:15 PM
SULFIDE STRESS ON ANIMALS IN NEOPROTEROZOIC OCEANS
SPERLING, Erik A., Dept. of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, JOHNSTON, David T., Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, KNOLL, Andrew H., Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138 and GIRGUIS, Peter R., Dept of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, sperling@fas.harvard.edu
 
3:30 PM
Break
3:45 PM
CONTROLS ON EUKARYOTIC FOSSIL DIVERSITY IN THE TONIAN AND CRYOGENIAN PERIODS
COHEN, Phoebe, Geosciences, Williams College, 947 Main Street, Williamstown, MA 01267 and MACDONALD, Francis A., Department of Earth and Planetary Sciences, Harvard University, 2, Cambridge, MA 02138, Phoebe.A.Cohen@williams.edu
256-11
4:00 PM
Withdrawn
4:15 PM
CARBON ISOTOPIC COMPOSITION OF ORGANIC FOSSILS ACROSS ISOTOPIC EXTREMES IN CRYOGENIAN CARBONATES
MATYS, Emily D.1, FREEMAN, Katherine H.2, MACDONALD, Francis A.3, BIRD, Laurence2, MORAN, James J.4 and BOSAK, Tanja5, (1)Department of Earth, Atmospheric, and Planetary Sciences, MIT, Cambridge, MA 01239, (2)Department of Geosciences, Pennsylvania State University, 235 Deike Building, University Park, PA 16802, (3)Department of Earth and Planetary Sciences, Harvard University, 2, Cambridge, MA 02138, (4)Pacific Northwest National Laboratory, Richland, WA 99354, (5)Department of Earth, Atmospheric, and Planetary Sciences, MIT, Cambridge, MA 02139, ematys@mit.edu
4:30 PM
COULD PHOTOSYNTHETIC EUKARYOTES HAVE SURVIVED IN NEARLY ENCLOSED SEAS DURING THE SNOWBALL EARTH EVENTS?
CAMPBELL, Adam J.1, WADDINGTON, Edwin D.1 and WARREN, Stephen G.2, (1)Earth and Space Sciences, University of Washington, Dept of Earth and Space Science Box 3513, Seattle, WA 98195, (2)Astrobiology Program, University of Washington, Box 351640, Seattle, WA 98195, campbead@uw.edu
See more of: Technical Sessions