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| 20-1 | 8:00 AM | ABRUPT ONSET OF SUBAERIAL VOLCANISM AND THE RISE OF ATMOSPHERIC OXYGEN: KUMP, Lee R., Department of Geosciences, Pennsylvania State University, University Park, PA 16802, lkump@psu.edu and BARLEY, Mark E., School of Earth and Geographical Sciences, The Univ of Western Australia, 35 Stirling Highway, Crawley, 6009, Australia |
| 20-2 | 8:20 AM | PROTEROZOIC EVOLUTION OF PHOTOSYNTHETIC EUKARYOTES: A PRIMER FOR PROTEROZOIC EVOLUTION OF OCEAN AND ATMOSPHERIC REDOX STATE: XIAO, Shuhai, DONG, Lin, HUNTLEY, John Warren, and KOWALEWSKI, Michal, Department of Geoological Sciences, Virginia Poltechnic Institute and State Univ, Blacksburg, VA 24061, xiao@vt.edu |
| 20-3 | 8:40 AM | AN ICBM (INTERMEDIATE COMPLEXITY BOX MODEL) FOR INVESTIGATING DEEP TIME BIOGEOCHEMICAL CYCLES: ROMANIELLO, Stephen J. and DERRY, Louis A., Earth & Atmospheric Sciences, Cornell University, 2112 Snee Hall, Ithaca, NY 14817, lad9@cornell.edu |
| 20-4 | 8:55 AM | THE PRESERVATION OF NON-MASS DEPENDENT SULFUR ISOTOPE ANOMALIES IN A DEEP TIME ASTROBIOLOGY DRILL CORE FROM WESTERN AUSTRALIA: KAUFMAN, Alan J.1, FARQUHAR, James2, JOHNSTON, David T.1, LYONS, T.W.3, BUICK, Roger4, ANBAR, Ariel5, ARNOLD, G.L.5, GARVIN, J.4, and BATES, S.3, (1) Geology Department, University of Maryland, College Park, MD 20742, kaufman@geol.umd.edu, (2) Earth System Science Interdisciplinary Center and Department of Geology, University of Maryland, College Park, MD 20742, (3) Earth Sciences, University of California, Riverside, 1462 Geology, Riverside, CA 92521-0423, (4) Department of Earth and Space Sciences & Astrobiology Program, University of Washington, Seattle, WA 98195-1310, (5) Dept of Geological Sciences and Dept of Chemistry & Biochemistry, Arizona State University, Tempe, AZ 85287-1404 |
| 20-5 | 9:10 AM | REDOX TRACE ELEMENT AND ORGANIC CARBON GEOCHEMISTRY OF THE NEOARCHEAN CAMPBELLRAND CARBONATE PLATFORM (TRANSVAAL SUPERGROUP, SOUTH AFRICA): SCHROEDER, Stefan1, GOLDBERG, Tanya2, LACASSIE, Juan Pablo1, BEUKES, Nicolas J.1, FISCHER, Woodward3, GUTZMER, Jens1, KNOLL, Andrew H.3, and STRAUSS, Harald4, (1) Department of Geology, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa, sts@rau.ac.za, (2) School of Earth Sciences, James Cook University, Townsville, 4811, Australia, (3) Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 2138, (4) Geologisch-Paläontologisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstr. 24, Münster, 48149, Germany |
| 20-6 | 9:25 AM | CONSTRAINING THE REDOX STATE OF THE PROTEROZOIC DEEP OCEANS USING THE MO ISOTOPE SYSTEMATICS OF EUXINIC BLACK SHALES: KENDALL, Brian1, ANBAR, Ariel D.2, GORDON, Gwyneth2, ARNOLD, Gail L.2, and CREASER, Robert A.1, (1) Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, Edmonton, AB T6G 2E3, Canada, bkendall@ualberta.ca, (2) School of Earth and Space Exploration, Arizona State University, Box 871404, Tempe, AZ 85287-1404 |
| 20-7 | 9:40 AM | THE ANTINOMY OF ORGANIC AND INORGANIC CARBON ISOTOPES AT CA. 551 MA: A RECORD OF BIOLOGICAL RESPONSES TO OCEAN REDOX CHANGE?: JIANG, Ganqing1, XIAO, Shuhai2, BRISTOW, Thomas F.3, and MCFADDEN, Kathleen A.2, (1) Department of Geoscience, University of Nevada, 4505 Maryland Parkway, Las Vegas, NV 89154, jiangg@unlv.nevada.edu, (2) Department of Geosciences, Virginia Polytechnic Institute and State University, 4044 Derring Hall, Blacksburg, VA 24061, (3) Department of Earth Sciences, University of California, Riverside, 900 University Avenue, Riverside, CA 92521 |
| | 9:55 AM | Break |
| 20-8 | 10:10 AM | STUDYING THE DISTRIBUTION OF MOLYBDENUM IN A BLACK SHALE WITH TOF-SIMS: KRINSLEY, David, Geological Sciences, Univ of Oregon, Department of Geological Sciences, University of Oregon, Eugene, OR 97403, krinsley@oregon.uoregon.edu, SCHIEBER, Juergen, Geological Sciences, Indiana University, 1001 E 10th Street, Bloomington, IN 47405, and GOLLEDGE, Steve, CAMCOR Surface Analytical Facility, University of Oregon, Eugene, OR 97403 |
| 20-9 | 10:25 AM | THE IRON FORMATION TO PHOSPHORITE OCEANOGRAPHIC TRANSITION: A DIACHRONOUS EVENT ALONG THE NUNA CONTINENTAL MARGIN AS RECORDED IN THE ~1.8 BILLION YEAR OLD BARAGA GROUP, MICHIGAN, AND FERRIMAN GROUP, LABRADOR: PUFAHL, Peir K.1, HIATT, Eric E.2, STANLEY, Clifford R.1, NELSON, Gabe J.1, and EDWARDS, Cole T.2, (1) Department of Geology, Acadia University, Wolfville, NS B4P 2R6, Canada, peir.pufahl@acadiau.ca, (2) Geology Department, University of Wisconsin-Oshkosh, 800 Algoma Blvd, Oshkosh, WI 54901 |
| 20-10 | 10:40 AM | ISOTOPIC CONSTRAINTS ON THE LATE ARCHEAN CARBON CYCLE FROM THE WESTERN MARGIN OF THE KAAPVAAL CRATON, SOUTH AFRICA: FISCHER, Woodward1, SCHROEDER, Stefan2, LACASSIE, Juan Pablo2, BEUKES, Nic3, STRAUSS, Harald4, HORSTMANN, Uwe5, SCHRAG, Daniel P.6, and KNOLL, Andrew H.1, (1) Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 2138, wfischer@fas.harvard.edu, (2) Department of Geology, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa, (3) Department of Geology, Rand Afrikaans Univ, Auckland Park 2006, Johannesburg, 1, South Africa, (4) Geologisch-Paläontologisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstr. 24, Münster, 48149, Germany, (5) Environmental Isotope Group, iThemba Labs Gauteng, Wits, 2050, South Africa, (6) Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138 |
| 20-11 | 10:55 AM | DO GEOCHEMICAL RECORDS FROM THE DOUSHANTUO FORMATION RECORD A MARINE SIGNAL?: BRISTOW, Thomas F.1, KENNEDY, Martin J.1, JIANG, Ganqing2, and DERROWSKI, Arkadiusz1, (1) Department of Earth Sciences, University of California, Riverside, 900 University Avenue, Riverside, CA 92521, tbris001@student.ucr.edu, (2) Department of Geoscience, University of Nevada, 4505 Maryland Parkway, Las Vegas, NV 89154 |
| 20-12 | 11:10 AM | PROGRESS TOWARDS AN UNDERSTANDING OF BIOGENESIS: LINDSAY, John F., Lunar and Planetary Institute, Center for Advanced Space Studies, 3600 Bay Area Boulevard, Houston, TX 77058, lindsay@lpi.usra.edu and CLEMETT, Simon J., NASA Johnson Space Center, Mail Code C-23, Bldg# 31, Houston, TX 77058 |
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