Journal ArticleDOI
Sulfur isotopic trends and pathways of iron sulfide formation in upper Holocene sediments of the anoxic Black Sea
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TLDR
In this article, isotopic data for pyrite within microlaminated muds from two localities in the deep basin show striking uniformity between sites and down core, with a mean δ34SCDT value of −37.2 ± 0.9About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1997-08-01. It has received 273 citations till now. The article focuses on the topics: Iron sulfide & δ34S.read more
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Trace metals as paleoredox and paleoproductivity proxies: An update
TL;DR: In this paper, a synthesis of the use of selected trace elements as proxies for reconstruction of paleoproductivity and paleoredox conditions is presented, and the combined used of U, V and Mo enrichments may allow suboxic environments to be distinguished from anoxic-euxinic ones.
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Proterozoic ocean chemistry and evolution: A bioinorganic bridge?
Ariel D. Anbar,Andrew H. Knoll +1 more
TL;DR: Recent data imply that for much of the Proterozoic Eon, Earth's oceans were moderately oxic at the surface and sulfidic at depth, and biologically important trace metals would have been scarce in most marine environments.
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Mo–total organic carbon covariation in modern anoxic marine environments: Implications for analysis of paleoredox and paleohydrographic conditions
Thomas J. Algeo,Timothy W. Lyons +1 more
TL;DR: In this paper, a detailed analysis of [Mo]s-total organic carbon (TOC) covariation in modern anoxic marine environments and its relationship to ambient water chemistry is presented.
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Acid volatile sulfide (AVS)
David Rickard,John W. Morse +1 more
TL;DR: In this paper, it was shown that acid volatile sulfide (AVS) is not equivalent to FeS and solid FeS phases have rarely been identified in marine sediments.
References
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Journal ArticleDOI
Sedimentary pyrite formation: An update
TL;DR: In this article, it was shown that organic matter appears to be the major control on pyrite formation in normal (non-euxinic) terrigenous marine sediments where dissolved sulfate and iron minerals are abundant.
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The age curves of sulfur and oxygen isotopes in marine sulfate and their mutual interpretation
TL;DR: In this article, a model involving symmetrical fluxes is introduced to take advantage of the oxygen data, and the measured δ34S and δ18O correspond to variations in these isotopes in sulfate of the world ocean surface.
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Sedimentary pyrite formation
TL;DR: In this paper, the major stages of formation (bacterial sulfate reduction, formation of Fe monosulfides by reaction of H 2 S with Fe minerals, pyrite formation, reaction of Fe mono-sulfides with elemental sulfur), limiting factors, coastal sediments of central Connecticut
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The use of chromium reduction in the analysis of reduced inorganic sulfur in sediments and shales
Donald E. Canfield,Robert Raiswell,Joseph T. Westrich,Christopher M. Reaves,Robert A. Berner +4 more
TL;DR: In this article, a chromium reduction method was used for the determination of reduced inorganic sulfur compounds (pyrite + elemental sulfur + acid volatile monosulfides) in modern sediments and shales.