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

Session No. 277
Wednesday, 4 November 2015: 8:00 AM-12:00 PM
Room 319/320 (Baltimore Convention Center)

T137. Fresh Perspectives on Critical Transitions in Earth History: Insights from Novel Tools or New Successions

GSA Geobiology & Geomicrobiology Division; GSA Sedimentary Geology Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Geochemical Society
Victoria A. Petryshyn and Aradhna Tripati, Session Chairs
Paper #
Start Time
 
8:00 AM
Introductory Remarks
8:05 AM
MACROSTRATIGRAPHIC CONSTRAINTS ON THE GLOBAL CARBON CYCLE
HUSSON, Jon and PETERS, Shanan E., Department of Geoscience, University of Wisconsin–Madison, 1215 W Dayton St, Madison, WI 53706, husson@wisc.edu
8:20 AM
INSIGHTS INTO CHEMICAL WEATHERING OF THE UPPER CONTINENTAL CRUST FROM THE GEOCHEMISTRY OF ANCIENT GLACIAL DIAMICTITES
LI, Su, Department of Geology, School of Geosciences,, China University of Petroleum (East China), No. 66 Changjiang West Rd. Building C709, Economic Development Zone, Qingdao, 266580, China, RUDNICK, Roberta L., Department of Geology, University of Maryland-College Park, College Park, MD 20742 and GASCHNIG, Richard M., Department of Geology, University of Maryland, College Park, MD 20742, lisu19870202@gmail.com
8:35 AM
A SEDIMENTARY LI ISOTOPE RECORD THROUGH EARTH'S HISTORY
PLANAVSKY, Noah J.1, KALDERON-ASAEL, Boriana2, BELLEFROID, Eric J.1 and ASAEL, Dan2, (1)Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, (2)Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06520, noah.planavsky@yale.edu
8:50 AM
CA AND MG ISOTOPE RECORD OF THE DESCENT AND ESCAPE OF THE END-CRYOGENIAN GLACIATION
AHM, Anne-Sofie C.1, BJERRUM, Christian J.2, HOFFMAN, Paul3, MACDONALD, Francis A.4, MALOOF, Adam5, ROSE, Catherine V.6 and HIGGINS, John A.5, (1)Department of Geoscience, University of Copenhagen, Øster Voldgade 10, Copenhagen, 1350, Denmark, (2)Nordic Center for Earth Evolution, and Department of Geography and Geology, University of Copenhagen, Øster Voldgade 10, Copenhagen K, DK-1350, Denmark, (3)University of Victoria, Victoria, BC V8W 2Y2, Canada, (4)Department of Earth and Planetary Sciences, Harvard University, 2, Cambridge, MA 02138, (5)Department of Geosciences, Princeton University, Princeton, NJ 08544, (6)Department of Geology, Trinity College, Dublin, 2, Ireland, annes.ahm@ign.ku.dk
9:05 AM
COUPLED STRATIGRAPHY, PETROGRAPHY,  AND Δ47 OF ANCIENT WALKER LAKE, NEVADA REVEALS UNIQUE ANALOG FOR STUDYING PROTEROZOIC STROMATOLITE FORMATION AND CLIMATIC FORCINGS
CHOU, Luoth1, VAN MALDEGEM, Lennart2, BUONGIORNO, Joy3, ZINKE, Laura A.4, PETRYSHYN, Victoria A.5, SHAPIRO, Russell6, LOYD, Sean7, PIAZZA, Olivia5, CORSETTI, Frank A.5 and INTERNATIONAL GEOBIOLOGY COURSE, 20158, (1)Department of Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor St, SES/MC 186, Chicago, IL 60607, (2)Max Planck Institute for Biogeochemistry, Bremen, 28359, Germany, (3)Microbiology, University of Tennessee, M409 Walters Life Sciences, Knoxville, TN 37996, (4)Marine Environmental Biology, University of Southern California, 3616 Trousdale Pkwy, AHF 107, Los Angeles, CA 90089-0371, (5)Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089, (6)Geological and Environmental Sciences, California State University, Chico, Box 205, Chico, CA 95929-0205, (7)Department of Geological Sciences, California State University, Fullerton, Fullerton, CA 92831, (8)Wrigley Institute for Environmental Studies, University of Southern California, Los Angeles, CA 90089, lchou5@uic.edu
277-6
9:20 AM
Withdrawn
 
9:35 AM
Break
9:50 AM
THE INFLUENCE OF VOLCANICALLY DRIVEN CLIMATE CHANGE ON PHANEROZOIC BIODIVERSITY
MCKENZIE, N. Ryan, Geology and Geophysics, Yale University, 210 Whitney Ave, New Haven, CT 06511, PLANAVSKY, Noah J., Geology and Geophysics, Yale University, New Haven, CT 06511, PENMAN, Donald, Yale University, New Haven, CT 06520, HORTON, Brian K., Department of Geological Sciences and Institute for Geophysics, Jackson School of Geosciences, University of Texas, Austin, 1 University Station C1100, Austin, TX 78712-0254, STOCKLI, Daniel F., Jackson School of Geosciences, The University of Texas at Austin, 2305 Speedway, Stop C1160, Austin, TX 78712 and MACKAMAN-LOFLAND, Chelsea, Geological Sciences, University of Texas at Austin, Austin, 78712, ryan.mckenzie@yale.edu
10:05 AM
CENOZOIC ORGANIC MOLECULAR ISOSCAPES: PLANT WAX HYDROGEN ISOTOPE RECORDS OF CHANGING PRECIPITATION ISOTOPES AND CLIMATE ACROSS NORTH AMERICA
HREN, Michael T., Department of Chemistry, University of Connecticut, 55 N. Eagleville Rd., Storrs, CT 06269; Center for Integrative Geosciences, University of Connecticut, 354 Mansfield Road, Storrs, CT 06269, michael.hren@uconn.edu
10:20 AM
INTERMITTENT OBLIQUITY-FORCED CLIMATE DURING THE EARLY TRIASSIC
LI, Mingsong, School of Earth Sciences, China University of Geosciences, Wuhan, 430074, China; Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD 21218, HUANG, Chunju, School of Earth Sciences, China University of Geosciences, Wuhan, 430074, China and HINNOV, Linda A., Dept. Atmospheric, Oceanic and Earth Sciences, George Mason University, 4400 University Avenue, Fairfax, VA 22030, mli69@jhu.edu
10:35 AM
DIAGENETIC δ34SCAS VARIABILITY IN METEORICALLY ALTERED DOLOSTONES: A CASE STUDY FROM THE UPPER ORDOVICIAN OF THE GREAT BASIN
JONES, David S.1, SANTIAGO RAMOS, Danielle2 and BEATY, Brian J.1, (1)Geology Department, Amherst College, 11 Barrett Hill Road, Amherst, MA 01002, (2)Geology Department, Amherst College, 11 Barrett Hill Road, Amherst, MA 01002; Geosciences Department, Princeton University, Guyot Hall, Princeton, NJ 08544, djones@amherst.edu
10:50 AM
RECONSTRUCTION OF LOCAL AND GLOBAL MARINE REDOX CONDITIONS DURING DEPOSITION OF LATE ORDOVICIAN AND EARLY SILURIAN ORGANIC-RICH MUDROCKS IN THE SILJAN RING DISTRICT, CENTRAL SWEDEN
LU, Xinze, Earth and Environmental Sciences, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada, KENDALL, Brian, Earth and Environmental Sciences, University of Waterloo, 200 University Ave W, Waterloo, ON N2L 3G1, Canada, LI, Chao, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China, STEIN, Holly J., AIRIE Program, Colorado State University, Fort Collins, CO 80523-1482 USA, Centre for Earth Evolution and Dynamics, University of Oslo, Oslo, 0316, Norway, HANNAH, Judith L., AIRIE Program, Colorado State University, Fort Collins, CO 80523-1482, USA, Centre for Earth Evolution and Dynamics, University of Oslo, Oslo, 0316, Norway, GORDON, Gwyneth W., School of Earth and Space Exploration, Arizona State University, Box 871404, Tempe, AZ 85287-1404 and EBBESTAD, Jan Ove R., Museum of Evolution, Uppsala University, Norbyvägen 22, Uppsala, SE-75236, Sweden, xlv@uwaterloo.ca
11:05 AM
CALCAREOUS NANNOPLANKTON RESPONSE AND POPULATION RESTRUCTURING ACROSS THE EOCENE-OLIGOCENE TRANSITION
NEWSAM, Cherry1, BOWN, Paul1 and DUNKLEY JONES, Tom2, (1)Department of Earth Sciences, University College London, Gower Street, London, WC1E 6BT, United Kingdom, (2)School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom, cherry.newsam.11@ucl.ac.uk
11:20 AM
OCEANOGRAPHIC CHANGES ACROSS THE OLIGOCENE/MIOCENE BOUNDARY (MI1 EVENT): ODP SITE 744, SOUTHERN KERGUELEN PLATEAU
FRAASS, Andrew Jeffrey, Geosciences, University of Massachusetts - Amherst, Amherst, MA 01375 and LECKIE, Mark, Dept. of Geosciences, Univ of Massachusetts, 611 North Pleasant Street, Amherst, MA 01003, ajfraass@geo.umass.edu
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