2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM

Session No. 294
Wednesday, 8 October 2008: 8:00 AM-12:00 PM

T127. Geochemical Tracers of Changes in Seawater Chemistry

Geochemical Society; Gulf Coast Association of Geological Societies


E. Troy Rasbury and Franco Marcantonio, Advocates
Paper #
Start Time
8:00 AM
Behavior of Carbonate-Associated Sulfate during Meteoric Diagenesis and Implications for the Sulfur Isotope Paleoproxy
GILL, Benjamin, Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, LYONS, Timothy W., Dept. of Earth Sciences, University of California, Riverside, CA 92521 and FRANK, Tracy, Department of Geosciences, Univ of Nebraska, Lincoln, NE 68588-0340, bgill003@ucr.edu, bgill003@ucr.edu
8:15 AM
Contrasting Sulfur Isotope and Iron Speciation Measurements across Paleoenvironmental Gradients during the Cenomanian-Turonian Oceanic Anoxic Event (OAE2)
ADAMS, Derek D., HURTGEN, Matthew T., SAGEMAN, Bradley B. and FLAUM, Jason A., Earth and Planetary Sciences, Northwestern University, 1850 Campus Drive, Evanston, IL 60208, derek-adams@northwestern.edu, derek-adams@northwestern.edu
8:30 AM
Formation of Early-Cambrian Stratiform Barite Deposits in South China
YU, Hua, Earth Science Department, Rice University, 6100 Main Street, Houston, TX 77005, DICKENS, Gerald R., Earth Science, Rice University, 6100 Main Street, MS 126, Houston, TX 77005 and SNYDER, Glen, Department of Earth Science, Rice University, Houston, TX 77005, hy2@rice.edu, hy2@rice.edu
8:45 AM
Punctuation and Stasis In the Marine Os Isotope Record, and Implications for Changing Oceanic Inputs
RAVIZZA, Greg, Geology and Geophysics, SOEST, University of Hawaii, 1680 East-West Rd, Honolulu, HI 96816, ravizza@hawaii.edu, ravizza@hawaii.edu
9:00 AM
Reorganization and Strengthening of Ocean Circulation in the Oligocene: Stable Isotopic and Trace Element Records from Western North Atlantic Intermediate Waters
KATZ, Miriam1, CRAMER, Benjamin2, FEIGENSON, Mark3, MILLER, Kenneth4, LIU, Chengjie5, ROSENTHAL, Yair6, WADE, Bridget7 and WRIGHT, James D.3, (1)Earth and Environmental Sciences, Rensselaer Polytechnic Institute, 110 8th St, Troy, NY 12180, (2)Theiss Research, Eugene, OR 97403, (3)Dept. of Geological Sci, Rutgers University, 610 Taylor Rd, Piscataway, NJ 08854, (4)Dept. of Earth and Planetary Sci, Rutgers University, 610 Taylor Rd, Piscataway, NJ 08854, (5)ExxonMobil Exploration Co, P.O.Box 4778, Houston, TX 77210-4778, (6)Imcs, Rutgers University, 71 Dudley Road, New Brunswick, NJ 08901, (7)Dept. of Geology & Geophysics, Texas A&M Univ, College Station, TX 77840, katzm@rpi.edu, katzm@rpi.edu
9:15 AM
Secular Change In the Stable Sulfur Isotope Composition of Seawater Sulfate Inferred from Organic Sulfur In Marine-Sourced Crude Oils
ENGEL, Michael H., School of Geology and Geophysics, Univ of Oklahoma, 100 East Boyd St, Norman, OK 73019 and ZUMBERGE, John E., GeoMark Research, Ltd, 9748 Whithorn Drive, Houston, TX 77095, ab1635@ou.edu, ab1635@ou.edu
9:30 AM
Secular Variations In the Major Ion Chemistry of Seawater: State of the Art
LOWENSTEIN, Tim K., Department of Geological Sciences and Environmental Studies, Binghamton University, Binghamton, NY 13902-6000, lowenst@binghamton.edu, lowenst@binghamton.edu
9:45 AM
The Magnesium Isotope Budget of the Modern Oceans
TIPPER, Edward T., Erdwissenschaft, ETH Zurich, Clausiusstrasse 25, Zurich, 8092, Switzerland, GALY, Albert, Earth Science, University of Cambridge, Cambridge, CB23EQ, United Kingdom, GAILLARDET, Jérome, Laboratoire de Géochimie-Cosmochimie, Institut de Physique du Globe de Paris-Universit\'e Paris Diderot, 4 Place Jussieu, Paris, 75252, France and BICKLE, Mike J., Department of Earth Sciences, Univ of Cambridge, Downing St, Cambridge, CB2 3EQ, United Kingdom, tipper@erdw.ethz.ch, tipper@erdw.ethz.ch
10:00 AM
The Relationship Between 87Sr/86Sr and Seawater Chemistry
RASBURY, Troy, HOLT, William E., FRODSHAM, Aaeron, EKSTROM, Brittany and WILSON, Janette, Geosciences, Stony Brook University, Stony Brook, NY 11794, troy.rasbury@stonybrook.edu, troy.rasbury@stonybrook.edu
10:15 AM
Unusual Ca-Rich Formation-Waters from Devonian Aquifers in Western Canada: Possible Relict Seawater?
ROSTRON, Benjamin J., Earth and Atmospheric Sciences, Univ of Alberta, 1-26 Earth Sciences Bldg, Edmonton, AB T6G 2E3, Ben.Rostron@UAlberta.ca, Ben.Rostron@UAlberta.ca
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