Program for Session 17f

282	Dissimilatory Sulfate Reduction: Why is the Oxygen Isotope Equilibrium Value Where it is? Brunner B, Goldhammer T, Templer S & Bernasconi S
283	Exploring the Relationship between Molybdenum and Organic Matter Through Experimental Approaches and XAS and NMR Characterization Chappaz A, Lyons TW, Fitts JP & Myneni SCB
284	Manganese and Molybdenum: Biogeochemical Tracers for Dynamics of Benthic-Pelagic Coupling in Temperate Tidal Systems Kowalski N, Dellwig O, Beck M, Grunwald M, Lemke A, Dürselen CD, Brumsack H-J, van Beusekom JEE & Böttcher ME
285	Quadruple Sulfur Isotope Analysis of Sulfur Cycle in a Stratified Lake Nakagawa M, Ueno Y & Yoshida N
286	Linking Geochemical  Tracers with Metabolic Pathways and Back: A Case Study with Dissimilatory Sulfate Reduction Wing B, Lau L & Webber B
287	Ordered Chain of Nanomagnetite: Implication for Magnetosome Mineralization Zhou G-T & Qu X

09:30	Isotope Study of S-Cycle of Lago di Cadagno Farquhar J, Canfield D, Zerkle A & Habicht K
09:45	Controls on Microbial Sulfur Isotope Fractionation in Littoral Sediments Stam M, Mason P, Laverman A, Pallud C & Van Cappellen P
10:00	Invited: Controls on Isotope Fractionation during Sulfate Reduction Hoek J & Canfield D
10:15	Diverse Pathways of Sulfur Cycling in the Modern Black Sea Captured in Rare Sulfur Isotope Signatures Gilhooly W, Johnston D, Farquhar J, Severmann S & Lyons T
10:30	Biogeochemical Sulfur Cycling in Meromictic Fayetteville Green Lake, NY Zerkle A, Kamyshny A, Kump L, Riccardi A, Arthur M & Farquhar J
10:45	The Nitrogen and Oxygen Isotope Composition of Nitrate in the Environment: The Systematics of Biological Nitrate Reduction Granger J, Karsh K, Guo W, Sigman D & Kritee K
11:00	Keynote: Why Metabolic Processes Fractionate Oxygen Isotopes Smirnov V & Roth J
11:30	Variable ¹³C Fractionation during CaCO₃ Precipitation Induced by Ureolytic Bacteria Millo C, Dupraz S, Ader M & Menez B
11:45	Evaluating the S-Isotope Fractionation Associated with Phanerozoic Pyrite Burial Wu N, Farquhar J, Strauss H, Kim S-T & Canfield D
12:00	Microbial Community Structure and Atmospheric Oxygen ca. 2.4 Ga Mojzsis S, Van Kranendonk M & Swanner E