Goldschmidt 2000 Daily Programme

Cambridge Publications

Publishing for Science


Goldschmidt 2000

An International Conference for Geochemistry

September 3rd - 8th 2000

Oral Sessions, Thursday, 7th September, 14:00 - 16:00



Symposium B

Chemistry and Dynamics of the Earth

Convenors: George Helffrich & Bernie Wood.

Location: Clarendon Lindemann.

14:00 Rubie DC, Fortenfant S, Holzapfel C, Frost DJ & Gessmann CK:

Kinetics of Metal-Silicate Reactions During Formation of the Earth's Core

14:15 Harte B, Sanehira T, Irifune T, Kawasaki T & Sato T:

Experimental Studies of Sulphide Melt Textures in the Lower and Upper Mantle

14:30 Hillgren VJ & Boehler R:

Evaluating Si as a Candidate Light Element

14:45 Chabot NL & Agee CB:

The Effect of Core-Mantle Differentiation on V, Cr, and Mn: Preliminary Experimental Results

15:00 Wade J & Wood B:

Earth's Missing Niobium: in the Core?

15:15 Jephcoat A:

Chemistry and Physics of the Earth's Core

15:30 Price GD, Vocadlo L, Alfe D & Gillan MJ:

The Application of Ab Initio Quantum Mechanical Methods to the Study of the Earth's Core

15:45 Sherman DM:

Constraints on Core-Mantle Equilibrium: Metal-Oxide Partitioning of Ni, Co and Zn at High Pressure
Programme for the Next Session in Symposium B




Symposium E

Biological Geochemistry

Convenors: Matthew Collins, Derek Lovely & Rob Raiswell.

Location: Oxford University Museum.

14:00 Graham D:

Application of Resource-Ratio Theory to Contaminant Transformation Phenomena in Natural Systems

14:15 Richnow HH, Zengler K, Gehre M, Michaelis W & Widdel F:

Methane Formation During the Degradation of N-alkanes and Total Crude Oils

14:30 Larter S, Head I & Wilhelms A:

Implications of Slow Biodegradation Rates in Oilfields for Crustal Biospheres

14:45 Petsch S, Edwards K & Eglinton T:

Microbes That Utilize Kerogen: Degradation of Ancient, Refractory Organic Matter During Black Shale Weathering

15:00 Tadanier CJ, Airey C, Berry DF, Potts M & Hochella MF:

An Integrated Biogeochemical Approach for Studying Bio-availability of Microbial Nutrients Sorbed on Mineral Surfaces

15:15 Lower S, Tadanier C & Hochella M:

Probing the Dynamic Nanoscale World at the Interface between Micro-organism and Minerals

15:30 Edwards K & Rutenburg A:

Microbial Response to Mineral Surface Microtopography

15:45 Skidmore M, Foght J, Sharp M, Parkes J & Tranter M:

Subglacial Microbiology and Chemical Weathering
Programme for the Next Session in Symposium E




Symposium F

Ocean Circulation: Past and Present

Convenors: Gideon Henderson & Bill Jenkins.

Location: Physical Chemistry.

14:00 Schrag DP & Berner RA:

On the Initiation of a Snowball Earth

14:15 Zhang R, Follows M & Marshall J:

Models of Haline-Thermal Mode Switching in Palaeo Oceans

14:30 Picard S, Lécuyer C, Barrat J, Garcia J, Dromart G & Sheppard S:

Rare Earth Element Chemistry of Jurassic Seawater Inferred from Fish and Reptile Apatite (Paris Basin, France and England)

14:45 Kenig F, Simons DH & DiFrancesco G:

Biomarker Constraints on Water Column Structure and Oceanographic Circulation in an Epeiric Sea (Callovian, Jurassic, North-Western Europe)

15:00 Simons DH & Kenig F:

Molecular Fossil Constraints on the Water Column Structure of the Cenomanian-Turonian Western Interior Seaway, North America

15:15 Gleason J, Rea D, Joseph L, Owen R, Blum J, Klaue A & Klaue B:

Nd-Sr-Pb Isotopic Variations in Deep-Sea Clays, Kerguelen Drift: A 7 Ma Record of Fluctuations in the Antarctic Ice-Sheet?

15:30 Frank M, Whiteley N, Kasten S, Hein JR & O'Nions RK:

Evidence for Stronger Thermohaline Circulation Prior to Northern Hemisphere Glaciation from Nd and Pb Isotopes in Ferromanganese Crusts
Programme for the Next Session in Symposium F




Symposium I

Mineral Surfaces and Reactions

Convenors: Andrew Putnis & Vala Ragnarsdottir.

Location: Zoology A.

14:00 Schoonen M, Strongin D, Elsetinow A & Borda M:

The Influence of Light and Heat on Pyrite Oxidation between pH 2 and 6

14:15 Bostick B, Fendorf S & Helz G:

Molybdenum Adsorption Mechanisms on Pyrite

14:30 Farquhar ML, Wogelius RA & Vaughan DJ:

Pyrite Surfaces ­ What a Difference a Day Makes

14:45 Cottnam C, Butler I & Rickard D:

Sorption Mechanisms of Co and Ni with Precipitated FeS

15:00 Wolthers M, Butler I, Rickard D & van der Weijden C:

Arsenic Incorporation into Pyrite at Low Temperature, Experimental Results

15:15 Butler I, Grimes S & Rickard D:

Pyrite Formation in an Anoxic Chemostatic Reaction System

15:30 Todd E, Sherman DM & Purton JA:

Nature of Sulphide Mineral Surfaces Under Atmospheric Conditions: Results from NEXAFS

15:45 Oelkers EH:

The Temporal Variation of Quartz Dissolution Rates: Have Quartz Dissolution Rates Changed Over Historic Time?
Programme for the Next Session in Symposium I




Symposium J

Mantle Dynamics and Melting

Convenors: Tim Elliott & Erik Hauri.

Location: Clarendon Martin Wood.

14:00 Kirstein L, Dunworth L, Nikigosian I & Touret J:

Melt Variations in the Oslo Rift as Recorded by Melt Inclusions Hosted by Pyroxene Phenocrysts

14:15 Rogers N, Macdonald R, Hawkesworth C & Thomas L:

Melting beneath a Continental Rift: Radiogenic Isotope and U-series Analyses from the Kenya Rift

14:30 Wilson M:

Intra-plate Magmatism Related to Short Wavelength Convective Instabilities in the Upper Mantle ­ A Case Study from the Massif Central, France

14:45 Williams HM, Turner SP, Kelley SP & Harris NBW:

Low-degree Mantle Melting beneath Tibet: Signals of Heterogeneous Lithosphere Erosion

15:00 Zou H, Reid M, Liu Y & Yao Y:

U-Th Disequilibrium Studies of Historic Potassic Alkali Basalts in NE China

15:15 Tilton GR & Bell K:

Probing the Mantle: The Isotope Story from Carbonatites

15:30 O'Reilly SY & Zhang M:

Basalts as Probes of Global Convection and Regional Geochemical Domains in the Mantle beneath Australia

15:45 Bogatikov OA, Kononova VA, Pervov VA & Zhuravlev DZ:

Nd-Sr Isotopic and Trace Element Systematic of the Devonian Kimberlites from the Northern Margin of the Russian Platform: Implications for the Mantle Source Heterogeneity
Programme for the Next Session in Symposium J




Symposium M

Chemistry and Microbiology of Pollution

Convenors: Adrian Bath & Barbara Sherwood-Lollar.

Location: Earth Sciences.

14:00 Jones A, Fenwick C, Glover AL, Henkler RD & Mason JR:

Assessment of Constraints to Bioremediation in Contaminated Sites

14:15 Milner MG, Jones DM, Swannell RP, Daniel F, Mitchell D & Head IM:

Effect of Nutrient Concentration on the Selection of Bacterial Communities and Oil Composition During Bio-remediation of Contaminated Beach Sediments

14:30 Kruge M & Benoit G:

Biogeochemistry and Contaminant Geochemistry of Marine and Estuarine Sediments, New Haven, Connecticut (USA)

14:45 Schmidt N & Stottmeister U:

System-integrated Environmental Biotechnology: Remediation of Polluted Groundwater and Surface Water

15:00 Seed K, Cave M, Carter J & Parker A:

Determination of Soil Selenium Speciation Using a New Extraction Methodology and Chemometric Data Analysis

15:15 Pourcelot L, Bouisset P, Calmet D & Louvat D:

Spatio Temporal Variability of Cesium Fallout in one High Altitude Catchment Basin

15:30 Duffa C, Renaud P & Louvat D:

Tracing of Plutonium Contamination Over Inundated Areas of Camargue (France)

15:45 Peinerud EK:

Geochemistry of S and Ni in the Subarctic Lake Imandra, Kola Peninsula, Russia

Symposium N

Low Temperature and Metamorphic Geochemistry and Geochronology

Convenor: Nigel Harris.

Location: Zoology B+C.

14:00 Andersson PS, Ingri J, Öhlander B, Land M, Widerlund A, Dahlqvist R & Gustafsson Ö:

Weathering, Transport and Sedimentation of Rare Earth Elements and Nd-isotopes in a Boreal River Basin ­ Brackish Bay Area

14:15 Ingri J, Andersson PS, Widerlund A, Öhlander B, Gustafsson Ö & Land M:

The Ce-anomaly in River Suspended Matter an Indicator of Hydrogeochemical Processes in a Boreal Catchment

14:30 Takahashi Y, Shimizu H, Kagi H, Yoshida H, Usui A & Nomura M:

A New Method for the Determination of Ce(III) / Ce(IV) Ratios in Rocks; Application to Weathering, Sedimentary, and Diagenetic Processes

14:45 Van der Weijden CH:

Pitfalls of Normalization of Trace Elements in Sediments

15:00 Thoenen T & Hummel W:

Application of the Brønstedt-Guggenheim-Scatchard Specific Ion Interaction Theory to the Concentration Dependence of Complexation Constants in NaCl Solutions up to the Saturation of Halite

15:15 Webb E & Longstaffe F:

Oxygen-Isotope Behaviour of Silica Phytoliths in Prairie Grasses Across the Great Plains of North America

15:30 Kovalevskii A:

The Biogenic Mineralization in Plants

15:45 Melezhik V & Fallick A:

Isotopic Evidence for Biological Origin of Shungite, Generation of Petroleum and 13C Depleted Nature of Initial Biomass at 2.0 Ga ago
Programme for the Next Session in Symposium N




Symposium O

Analytical Techniques

Convenor: Nigel Harris.

Location: Inorganic Chemistry.

14:00 Cox R, Kossler J, Sylvester P & Hodych J:

Apatite Fission-Track (FT) Dating by LAM-ICP-MS Analysis

14:15 Meffan-Main S, Palacz Z & Turner P:

IsoProbe2 ­ The Second Generation Single Focussing MC-ICPMS

14:30 Matthews A, Zhu X & O'Nions K:

Experimental Study of Iron Isotope Fractionation

14:45 Hamester M, Wills J, Pesch R & Schwieters J:

Full Mass Range, Multi-elemental Analysis with a Rapid Scanning Single Collector Sector Field ICP-MS for Laser Ablation Analysis

15:00 Jackson S, Griffin W, Sharma A & Belousova E:

Progress in the Application of Laser Ablation Microprobe (LAM)-ICP-MS to in Situ U-Pb Zircon Geochronology

15:15 Barfod GH, Albarede F & Frei R:

Dating of Phosphatic Material by the Lu-Hf Isotopic System

15:30 Münker C, Weyer S, Scherer E & Mezger K:

High Precision Nb/Ta, Zr/Hf and Lu/Hf Measurements by MC-ICPMS Using a Mixed Zr-Hf-Ta-Lu Tracer

15:45 Klaue B & Blum JD:

Mercury Isotopic Analyses by Single- and Multi-Collector Magnetic Sector Inductively Coupled Plasma Mass Spectrometry
Programme for the Next Session in Symposium O



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