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Table of Contents - Special Paper 379

Sulfur Biogeochemistry — Past and Present

Edited by Jan P. Amend, Katrina J. Edwards, and Timothy W. Lyons

Preface		v
The Microbial End-Member
1.	Physiological and ecological aspects of sulfur isotope fractionation during bacterial sulfate reduction Volker Brüchert	1
2.	Microbially mediated sulfur-redox: Energetics in marine hydrothermal vent systems Jan P. Amend, Karyn L. Rogers, and D’Arcy R. Meyer-Dombard	17
3.	Eukaryotes of the Cariaco, Soledad, and Santa Barbara Basins: Protists and metazoans associated with deep-water marine sulfide-oxidizing microbial mats and their possible effects on the geologic record Joan M. Bernhard and Kurt R. Buck	35
Sulfide Oxidation in the Environment
4.	Biogeochemistry of metal sulfide oxidation in mining environments, sediments, and soils Axel Schippers	49
5.	Sulfide oxidation in marine sediments: Geochemistry meets microbiology Bo Barker Jørgensen and Douglas C. Nelson	63
6.	Formation and degradation of seafloor hydrothermal sulfide deposits Katrina J. Edwards	83
Sulfur Intermediates and Sinks
7.	Distribution and fate of sulfur intermediates — sulfite, tetrathionate, thiosulfate, and elemental sulfur — in marine sediments J. Zopfi, T.G. Ferdelman, and H. Fossing	97
8.	Mechanisms of sedimentary pyrite formation Martin A.A. Schoonen	117
9.	Organic sulfur biogeochemistry: Recent advances and future research directions Josef P. Werne, David J. Hollander, Timothy W. Lyons, and Jaap S. Sinninghe Damsté	135
Marine Sulfate over Geologic Time
10.	Using sulfur isotopes to elucidate the origin of barite associated with high organic matter accumulation events in marine sediments A. Paytan, F. Martinez-Ruiz, M. Eagle, A. Ivy, and S.D. Wankel	151
11.	Sites of anomalous organic remineralization in the carbonate sediments of South Florida, USA: The sulfur cycle and carbonate-associated sulfate Timothy W. Lyons, Lynn M. Walter, Anne M. Gellatly, Anna M. Martini, and Ruth E. Blake	161
12.	The sulfur isotope composition of carbonate-associated sulfate in Mesoproterozoic to Neoproterozoic carbonates from Death Valley, California Matthew T. Hurtgen, Michael A. Arthur, and Anthony R. Prave	177
13.	4 Ga of seawater evolution: Evidence from the sulfur isotopic composition of sulfate Harald Strauss	195