2003 Seattle Annual Meeting (November 2–5, 2003)

Session No. 70
Monday, 3 November 2003: 8:00 AM-12:00 PM

T82. Ocean Chemistry Through the Mesozoic and Cenozoic

Geochemical Society

 

Adina Paytan and Christina De La Rocha, Advocates
Paper #
Start Time
1
8:00 AM
WHY DID THE COMPOSITION OF SEAWATER VARY DURING THE PHANEROZOIC?
HOLLAND, Heinrich D., Earth and Planetary Sciences, Harvard Univ, 20 Oxford Street, Cambridge, MA 02138, holland@eps.harvard.edu, holland@eps.harvard.edu
2
8:20 AM
RAMIFICATIONS OF SECULAR VARIATIONS IN SEAWATER CHEMISTRY
LOWENSTEIN, Tim K.1, DEMICCO, Robert V.1, TIMOFEEFF, Michael N.1, HARDIE, Lawrence A.2 and BRENNAN, Sean T.3, (1)Department of Geological Sciences, State Univ of New York, Binghamton, NY 13902, (2)Morton K Blaustein Department of Earth & Planetary Sciences, Johns Hopkins Univ, Baltimore, MD 21218, (3)U.S. Geol Survey, MS 956, National Center, 12201 Sunrise Valley Drive, Reston, VA 20192, lowenst@binghamton.edu, lowenst@binghamton.edu
3
8:40 AM
PREDICTION OF THE SECULAR VARIATION IN SEAWATER CHEMISTRY OVER THE PAST 2.8 GA: A COMPARISON OF PHANEROZOIC AND PRECAMBRIAN SEAWATER
HARDIE, Lawrence A., Morton K Blaustein Department of Earth & Planetary Sciences, Johns Hopkins Univ, Baltimore, MD 21218, hardie@ekman.eps.jhu.edu, hardie@ekman.eps.jhu.edu
4
8:55 AM
LINKING MICROBIAL DOLOMITE FORMATION AND GLOBAL BIOGEOCHEMICAL CYCLES IN THE PHANEROZOIC
MCKENZIE, Judith A.1, VASCONCELOS, Crisogono1 and BURNS, Stephen J.2, (1)Geological Institute, Dept. of Earth Sciences, ETH-Zurich, Sonneggstr. 5, Zurich, 8092, Switzerland, (2)Department of Geosciences, Univ of Massachusetts, Amherst, Morrill Science Center, University of Massachusetts, Amherst, MA 01002, sediment@erdw.ethz.ch, sediment@erdw.ethz.ch
5
9:10 AM
VISIONS OF ICE SHEETS IN THE LATE CRETACEOUS GREENHOUSE WORLD
MILLER, Kenneth G.1, WRIGHT, James D.2, BROWNING, James V.1, KOMINZ, Michelle A.3 and SUGARMAN, Peter J.4, (1)Department of Geological Sciences, Rutgers, The State Univ of New Jersey, 610 Taylor Rd, Piscataway, NJ 08854-8066, (2)Department of Geological Sciences, Rutgers Univ, 610 Taylor Rd, Piscataway, NJ 08054, (3)Dept. of Geosciences, Western Michigan Univ, Kalamazoo, MI 49008-5150, (4)New Jersey Geol Survey, P.O. Box 427, Trenton, NJ 08625, kgm@rci.rutgers.edu, kgm@rci.rutgers.edu
6
9:25 AM
DEATH BY HYDROGEN SULFIDE: A KILL MECHANISM FOR THE END-PERMIAN MASS EXTINCTION
KUMP, Lee R., NASA Astrobiology Institute and Department of Geosciences, Penn State, 535 Deike Bldg, University Park, PA 16802, PAVLOV, Alexander, LASP, Univ of Colorado, Duane Physics Building, Room D221, 392 UCB, Boulder, CO 80309, ARTHUR, Michael, NASA Astrobiology Institute and Dept. of Geosciences, The Pennsylvania State Univ, 538 Deike Building, University Park, PA 16802, KATO, Yashuhiro, Department of Geosystem Engineering, Univ of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan and RICCARDI, Anthony, Department of Geosciences, The Pennsylvania State Univ, 513 Deike Bldg, University Park, PA 16820, lkump@psu.edu, lkump@psu.edu
7
9:40 AM
ATMOSPHERIC PCO2 SINCE 60 MA FROM RECORDS OF SEAWATER PH, CALCIUM, AND PRIMARY CARBONATE MINERALOGY
DEMICCO, Robert V., Dept. of Geological Sciences and Environmental Studies, Binghamton Univ, Binghamton, NY 13902-6000, LOWENSTEIN, Tim K., Department of Geological Sciences, Binghamton Univ, Binghamton, NY 13901 and HARDIE, Lawrence A., Morton K Blaustein Department of Earth & Planetary Sciences, Johns Hopkins Univ, Baltimore, MD 21218, demicco@binghamton.edu, demicco@binghamton.edu
8
9:55 AM
SUBMARINE HYDROTHERMAL ACTIVITY AND SECULAR CHANGES IN MID-CRETACEOUS SEAWATER CHEMISTRY
MACCONNELL, Adam B., Department of Geosciences, Univ of Massachusetts at Amherst, Morrill Science Center, Amherst, MA 01003, LECKIE, R. Mark, Department of Geosciences, Univ of Massachusetts, Amherst, MA 01003 and HALL, Jenney, Geology & Geophysics Department, Yale Univ, Kline Geology Laboratory, 210 Whitney Ave, New Haven, CT 06511, adam@geo.umass.edu, adam@geo.umass.edu
9
10:10 AM
WHAT CAN WE SEE: SENSITIVITY OF SILICON ISOTOPES TO PERTURBATIONS OF THE SILICA CYCLE
DE LA ROCHA, Christina L. and BICKLE, Mike J., Department of Earth Sciences, Univ of Cambridge, Downing St, Cambridge, CB2 3EQ, christina00@esc.cam.ac.uk, christina00@esc.cam.ac.uk
10
10:30 AM
SECULAR CHANGES IN THE MODES OF CARBONATE DEPOSITION AND THE STABILITY OF THE CLIMATE SYSTEM
RIDGWELL, Andy J., Department of Earth Sciences, Univ of California - Riverside, Riverside, CA 92521 and KENNEDY, Martin J., Department of Earth Science, Univ of California, Riverside, Geology Building, Riverside, CA 92521, andyr@citrus.ucr.edu, andyr@citrus.ucr.edu
11
10:45 AM
BIOLOGICAL OVERPRINT OF THE GEOLOGICAL CARBON CYCLE
KATZ, Miriam E.1, WRIGHT, James D.1, MILLER, Kenneth G.1, CRAMER, Benjamin S.2, FENNEL, Katja3 and FALKOWSKI, Paul G.4, (1)Dept. of Geological Sci, Rutgers Univ, 610 Taylor Rd, Piscataway, NJ 08854, (2)Institute of Geology and Paleontology, Tohoku Univ, Aoba, Aramaki, Sendai 980-8578, Japan, (3)Institute of Marine and Coastal Sciences, Rutgers Univ, 71 Dudley Road, New Brunswick, NJ 08901-8521, (4)Dept of Geology, and Institute of Marine and Coastal Sciences, Rutgers Univ, New Brunswick, NJ 08901, mimikatz@rci.rutgers.edu, mimikatz@rci.rutgers.edu
12
11:00 AM
CHANGES IN THE SR/CA AND MG/CA RATIOS OF CRETACEOUS SEAWATER DERIVED FROM THE COMPOSITION OF BIOLOGICAL LOW-MG CALCITE
STEUBER, Thomas and RAUCH, Markus, Institute of Geology, Mineralogy and Geophysics, Ruhr Univ, Universitaetsstrasse 150, Bochum, 44801, Germany, thomas.steuber@ruhr-uni-bochum.de, thomas.steuber@ruhr-uni-bochum.de
13
11:15 AM
MODERN HIGH-MAGNESIUM CALCITE ORGANISMS PRODUCE LOW-MAGNESIUM CALCITE IN EXPERIMENTAL MID-CRETACEOUS SEAWATER
RIES, Justin B., Morton K. Blaustein Department of Earth & Planetary Sciences, Johns Hopkins Univ, Baltimore, MD 21218, riesjustin@hotmail.com, riesjustin@hotmail.com
14
11:30 AM
NANNOFOSSIL CARBONATE FLUXES DURING THE EARLY CRETACEOUS: PHYTOPLANKTON RESPONSE TO NUTRIFICATION EPISODES, ATMOSPHERIC CO2 AND ANOXIA
ERBA, Elisabetta, Earth Sciences Department, Univ of Milan, via Mangiagalli 34, Milano, 20133, Italy and TREMOLADA, Fabrizio, Department of Geosciences, Pennsylvania State Univ, Deike Building 503, University Park, PA 16802, fabrizio.tremolada@unimi.it, fabrizio.tremolada@unimi.it
15
11:45 AM
CONSTRAINING THE CONTROLS ON CARBONATE ACCUMULATION IN DEEP SEA SEQUENCES: A GLOBAL DISSOLUTION EVENT IN THE EARLY LATE PALEOCENE
BRALOWER, Timothy J., Geosciences, Pennsylvania State Univ, University Park, PA 16802, ROEHL, Ursula, Geosciences, Bremen Univ, DFG Research Center for Ocean Margins (RCOM), Bremen, 28334, Germany, PETRIZZO, Maria Rose, Earth Sciences, Univ of Milan, Milan, 20133, Italy, ZACHOS, James, Earth Sciences, Univ of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, PREMOLI-SILVA, Isabella, Earth Sciences, Univ of Milan, Milan, 20133 and THOMAS, Deborah, Geological Sciences, Univ of North Carolina, Chapel Hill, NC 27599, bralower@geosc.psu.edu, bralower@geosc.psu.edu
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