Wednesday, 8 October 2008: 8:00 AM
George R. Brown Convention Center, 310CF
294: Geochemical Tracers of Changes in Seawater Chemistry
Sponsor:Topical Sessions
JTPC Rep:Briant A. Kimball, U.S. Geological Survey
Conveners/Advocates:E. Troy Rasbury, SUNY Stony Brook
Franco Marcantonio, Texas A & M
8:00 AMSecular Change In the Stable Sulfur Isotope Composition of Seawater Sulfate Inferred from Organic Sulfur In Marine-Sourced Crude Oils
Michael H. Engel, Univ of Oklahoma, John E. Zumberge, GeoMark Research, Ltd
8:15 AMSecular Variations In the Major Ion Chemistry of Seawater: State of the Art
Tim K. Lowenstein, Binghamton University
8:30 AMThe Magnesium Isotope Budget of the Modern Oceans
Edward T. Tipper, ETH Zurich, Albert Galy, University of Cambridge, Jérome Gaillardet, Institut de Physique du Globe de Paris-Universit\'e Paris Diderot, Mike J. Bickle, Univ of Cambridge
8:45 AMPunctuation and Stasis In the Marine Os Isotope Record, and Implications for Changing Oceanic Inputs
Greg Ravizza, University of Hawaii
9:00 AMReorganization and Strengthening of Ocean Circulation in the Oligocene: Stable Isotopic and Trace Element Records from Western North Atlantic Intermediate Waters
Miriam Katz, Rensselaer Polytechnic Institute, Benjamin Cramer, University of Oregon, Mark Feigenson, Rutgers University, Kenneth Miller, Rutgers University, Chengjie Liu, ExxonMobil Exploration Co, Yair Rosenthal, Rutgers University, Bridget Wade, Texas A&M Univ, James D. Wright, Rutgers University
9:15 AMContrasting Sulfur Isotope and Iron Speciation Measurements across Paleoenvironmental Gradients during the Cenomanian-Turonian Oceanic Anoxic Event (OAE2)
Derek D. Adams, Northwestern University, Matthew T. Hurtgen, Northwestern University, Bradley B. Sageman, Northwestern University, Jason A. Flaum, Northwestern University
9:30 AMThe Relationship Between 87Sr/86Sr and Seawater Chemistry
Troy Rasbury, Stony Brook University, William E. Holt, Stony Brook University, Aaeron Frodsham, Stony Brook University, Brittany Ekstrom, Stony Brook University, Janette Wilson, Stony Brook University
9:45 AMFormation of Early-Cambrian Stratiform Barite Deposits in South China
Hua Yu, Rice University, Gerald R. Dickens, Rice University, Glen Snyder, Rice University
10:00 AMBehavior of Carbonate-Associated Sulfate during Meteoric Diagenesis and Implications for the Sulfur Isotope Paleoproxy
Benjamin Gill, University of California-Riverside, Timothy Lyons, University of California, Tracy Frank, Univ of Nebraska
10:15 AMUnusual Ca-Rich Formation-Waters from Devonian Aquifers in Western Canada: Possible Relict Seawater?
Ben J. Rostron, Univ of Alberta

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