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Program for Session 04c

Tuesday 23rd June AM: Room B3/Pa

04c (Oral): Hydrothermal processes at mid-ocean ridges: temporal and spatial variability and impacts on biogeochemical cycling between mantle, crust, and ocean
Session chaired by Hedy Edmonds, Julie Bryce, Marvin Lilley, Adelie Delacour & Marguerite Godard

11:00	Keynote: Chemical Fluxes and Heat Fluxes at Mid-Ocean Ridge Hydrothermal Systems: Temporal and Spatial Variability and Approaches of Quantification Koschinsky A
11:30	Export Fluxes from Submarine Venting to the Ocean: A Synthesis of Results from the Rainbow Hydrothermal Field, 36°N MAR German C, Thurnherr A, Knoery J, Charlou J-L, Jean-Baptiste P & Edmonds H
11:45	Temporal and Spatial Variations in Hydrothermal Budgets of Degassing Metals Across a Full Eruptive Cycle: 9°46’-9°50’N East Pacific Rise Prado MF, Von Damm KL, Bryce JG, Lilley MD & Dibb JE
12:00	Sr Isotopic Evidence for Dissolution of Anhydrite in Hydrothermal Fluids at 9°50’N East Pacific Rise McDermott J, Von Damm K, Kalnejais L & Bryce J
12:15	Rare Earth Element Distribution and Temporal Variability in Supercritical Vapor Phase Fluids from 5°S, MAR Schmidt K, Garbe-Schönberg D, Koschinsky A & Bau M

Tuesday 23rd June PM: Room B3/Pa

04c (Oral): Hydrothermal processes at mid-ocean ridges: temporal and spatial variability and impacts on biogeochemical cycling between mantle, crust, and ocean
Session chaired by Hedy Edmonds, Julie Bryce, Marvin Lilley, Adelie Delacour & Marguerite Godard

14:30	Discovery of the Loki’s Castle Vent Field at the Ultra-Slow Spreading Arctic Mid-Ocean Ridge Pedersen RB, Thorseth IH, Lilley MD, Früh-Green GL, Barriga F, Rapp HT, Baumberger T, Flesland K & Joergensen SL
14:45	Geochemistry of Rift Valley Sediments and Hydrothermal Fluids at the Ultra-Slow Spreading S. Knipovich Ridge Baumberger T, Früh-Green GL, Pedersen RB, Thorseth IH, Lilley MD & Bernasconi SM
15:00	Volatiles in the Loki's Castle and Jan Mayen Vent Fields of the Ultra-Slow Spreading Knipovich and Mohns Ridges Lilley M, Pedersen R, Thorseth I, Lupton J, Olson E, Freuh-Green G & Baumberger T
15:15	Isotope Fractionation and Mixing in Methane Plumes from the Logatchev Hydrothermal Field Keir R, Schmale O, Seifert R & Sültenfuß J
15:30	Constraints on Hydrothermal Fluid Fluxes from Tl Geochemistry Coggon R, Rehkämper M, Atteck C & Teagle D
15:45	Mineral Chemical Aspects of Hydrothermalism in the Mid-Upper Oceanic Crust: Chloritization of the Isotropic Gabbro/Dolerite from the Northern Oman Ophiolite Yoshitake N & Arai S
16:00	A Fossil Oceanic Core Complex in the Troodos Ophiolite, Cyprus: Field and Isotope Evidence Katzir Y, Nuriel P, Abelson M, Valley JW, Matthews A, Spicuzza MJ & Ayalon A
16:15	Sulfur and Carbon Geochemistry of Carbonate-Veined Serpentinites from Liguria: A Comparison to the Iberian Margin and Lost City Schwarzenbach EM, Früh-Green GL & Bernasconi SM
16:30	Oxidation of Ocean Crust and the Fate of Seawater Sulphate in Axial Hydrothermal Systems Barker A, Coogan L & Gillis K
16:45	Sulfur Cycling at the Mid-Atlantic Ridge: A Multiple Sulfur Isotope Approach Peters M, Strauss H & Farquhar J
17:00	S-Cycling and Sulfurization Processes at the Lost City Hydrothermal Field Méhay S, Früh-Green G & Bernasconi S
17:15	Energetics of Catabolic Reactions in Diffuse Hydrothermal Fluids – Clues to Subseafloor Microbial Metabolism Hentscher M, Bach W, Perner M, Koschinsky A, Garbe-Schönberg D & Amend JP

Wednesday 24th June AM: Room ICE

04c (Poster): Hydrothermal processes at mid-ocean ridges: temporal and spatial variability and impacts on biogeochemical cycling between mantle, crust, and ocean

30	The Halmyrolisis Effects on the Mantle Derived Rocks in Productive Water on St. Paul´s Rocks, Equatorial Atlantic Campos T & Petta RA
31	Fluid Circulation in the Oceanic Crust: The Case of the Alkaline Springs of the Oman Ophiolite Chavagnac V, Monnin C, Ceuleneer G & Destrigneville C
32	Permeability Control on Sub-Seafloor Phase Separation, Venting Temperature and Salinity in MOR Hydrothermal Systems Driesner T & Coumou D
33	The Role of Crystal-Plastic Deformation in the Serpentinization of Olivine Plümper O, Austrheim H & Jung H
34	New Occurences of Pumpellyite on Fore Sudetic Monocline Sokalska E, Dubińska E & Kaproń G
35	Thermobarometric Implications of Temporal and Spatial Variability in Hydrothermal Fluid SiO₂-Cl Abundances Through a Full Eruptive Cycle at 9°50’N East Pacific Rise Von Damm K, Meana Prado F, McDermott J, Lilley M & Bryce J
36	Kinetic Experiments of Basalt and Femic Minerals Reacted with Water at High Temperatures Above 300°C Zhang X, Zhang R & Hu S