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By Murthy A. Vairavamurthy, Martin A.A. Schoonen

content material: Geochemical modifications of sedimentary sulfur : an creation / Murthy A. Vairavamurthy, Wilson L. Orr, and Bernard Manowitz --
function of sulfur within the modifications of sedimentary natural subject : a mechanistic evaluation / Zeev Aizenshtat, Eitan B. Krein, Murthy A. Vairavamurthy, and Ted P. Goldstein --
Sulfur modifications in early diagenetic sediments from the Bay of notion, off Chile / Murthy A. Vairavamurthy, Shengke Wang, Bandana Khandelwal, Bernard Manowitz, Timothy Ferdelman, and Henrik Fossing --
natural geochemistry of sulfur-rich floor sediments of meromictic Lake Cadagno, Swiss Alps / Anke Putschew, Barbara M. Scholz-Böttcher, and Jürgen Rullkötter --
effect of sulphur cross-linking at the molecular-size distribution of sulphur-rich macromolecules in bitumen / Stefan Schouten, Timothy I. Eglinton, Jaap S. Sinninghe Damsté, and Jan W. de Leeuw --
Alkanoic subunits in sulfur-rich geomacromolecules : info from stepwise chemical degradation and compound-specific isotopic research / J. Hefter, V. Hauke, H.H. Richnow, and W. Michaelis --
Proposed thermal pathways for sulfur variations in natural macromolecules : laboratory simulation experiments / Eitan B. Krein and Zeev Aizenshtat --
adjustments in natural sulfur speciation in the course of maturation of Monterey Shale : constraints from laboratory experiments / Bryan C. Nelson, Timothy I. Eglinton, Jeffrey S. Seewald, Murthy A. Vairavamurthy, and Francis P. Miknis --
Chemistry of iron sulfides in sedimentary environments / David Rickard, Martin A.A. Schoonen, and G.W. Luther, III --
Reactions forming pyrite from brought about amorphous ferrous sulfide / Yoko Furukawa and H.L. Barnes --
Laboratory simulation of pyrite formation in anoxic sediments / Qiwei Wang and John W. Morse --
Environmental controls on iron sulfide mineral formation in a coastal undeniable estuary / Jeffrey C. Cornwell and Peter A. Sampou --
Digestion tactics for settling on lowered sulfur species in bacterial cultures and in historical and up to date sediments / R.E. Allen and R.J. Parkes --
Oxidation of hydrogen sulfide by way of Mn(IV) and Fe(III) (hydr)oxides in seawater / Wensheng Yao and Frank H. Millero --
Characterization of a temporary +2 sulfur oxidation kingdom intermediate from the oxidation of aqueous sulfide / Murthy A. Vairavamurthy and Weiqing Zhou --
Temporal courting of thiols to inorganic sulfur compounds in anoxic Chesapeake Bay sediment porewater / William MacCrehan and Damian Shea --
The distribution of unfastened natural sulfur compounds in sediments from the Nördlinger Ries, southern Germany / Assem O. Barakat and Jürgen Rullkötter --
Sulfate incorporation into sedimentary carbonates / Wilfried J. Staudt and Martin A.A. Schoonen --
³⁵S-radiolabeling to probe biogeochemical biking of sulfur / Henrik Fossing --
Microbial assimilation and dissimilation of sulfonate sulfur / A.P. Seitz and E.R. Leadbetter --
Isotopic facts for the foundation of natural sulfur and elemental sulfur in marine sediments / Thomas F. Anderson and Lisa M. Pratt --
solid sulfur isotopic compositions of chromium-reducible sulfur in lake sediments / Brian Fry, Anne Giblin, Mark Dornblaser, and Bruce Peterson --
Kinetic controls on thermochemical sulfate relief as a resource of sedimentary H₂S / Martin B. Goldhaber and Wilson L. Orr --
Controls at the starting place and distribution of elemental sulfur, H₂S, and CO₂ in Paleozoic hydrocarbon reservoirs in Western Canada / Ian Hutcheon, H. Roy Krouse, and Hugh J. Abercrombie --
Devonian Nisku bitter fuel play, Canada : a different traditional laboratory for learn of thermochemical sulfate relief / H.G. Machel, H. Roy Krouse, L.R. Riciputi, and D.R. Cole.

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10 cm, but then remains almost constant down to the bottom of the core. Pyrite is not present near the sediment-water interface, and appears first ca. 3 cm below surface, where the concentration of organic polysulfides begins to decrease. Below this level, pyrite builds up until a maximum is obtained around 10 cm depth, and after which the concentration remains constant with depth, reflecting steady-state conditions. In deeper sediments, pyrite represents the most abundant sulfur form accounting for almost 70 % of the total solid phase sedimentary sulfur; organic sulfur constitutes about 20 % of the total sulfur at corresponding depths.

Geochim. Cosmochim. Acta 1994, 21, 4681-4687. Williamson, M . A . ; Rimstidt, J. D. Geochim. Cosmochim. Acta 1992, 56, 3867-3880. ; ACS Symposium Series; American Chemical Society: Washington, DC, 1995. ch002 2. AIZENSHTAT ET AL. Sedimentary Sulfur Transformations 35 22. Goldstein, T. ; Aizenshtat, Z. J. 1994, 42, 241. 23. Krein, E. B. In Supplement S: The chemistry ofthe sulphur-containing functional groups; S. Patai and Z. ; Wiley & Sons: New York, 1993; pp 975-1032. 24. ; Mopper, K. Nature 1987, 329, 623-625.

In Geochemistry of sulfur in fossil fuels; W. L . Orr and C. M . ; Am. Chem. , 1990; Vol. 429; pp 170185. 40. ; Giusti, G. J. Photochem. Photobiol. A:chem. 1988, 42, 347355. 41. Vairavamurthy, A . , T. Geophysical. Res. Lett. 1992, 19, 2043-2046. 42. ; Manowitz, B. Di-and Polysulfide Cross linking in the Formation of Humic Polymers in Marine Sediments. Abstracts, Am. Chem. Soc. , 1994 43. Voronkov, M . ; Deryagina, E. N . In Chemisty of Organosulfur Compounds General problems; L. I. ; Ellis Horwood: Chichester, 1990; pp48.

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