Journal ArticleDOI
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
TLDR
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.About:
This article is published in Chemical Geology.The article was published on 1986-01-30. It has received 1268 citations till now. The article focuses on the topics: Sulfur & Chromium.read more
Citations
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Journal ArticleDOI
An Indicator of Water-Column Anoxia: Resolution of Biofacies Variations in the Kimmeridge Clay (Upper Jurassic, U.K.)
TL;DR: An Indicator of Anoxicity (IA), defined as the ratio (Pyrite Fe + Oxide Fe)/Total Fe, can be used to recognize sediments deposited under an anoxic water column as discussed by the authors.
Journal ArticleDOI
Dynamic redox conditions control late Ediacaran metazoan ecosystems in the Nama Group, Namibia
Rachel Wood,Simon W. Poulton,Anthony R. Prave,Karl Heinz Hoffmann,Matthew O Clarkson,Romain Guilbaud,J W Lyne,Rosalie Tostevin,Frederick Bowyer,A M Penny,Andrew Curtis,Simone A Kasemann +11 more
TL;DR: The first appearance of skeletal metazoans in the late Ediacaran (~550 million years ago; Ma) has been linked to the widespread development of oxygenated oceanic conditions, but a precise spatial and temporal reconstruction of their evolution has not been resolved as discussed by the authors.
Journal ArticleDOI
Sulfur cycling in the aftermath of a 635-Ma snowball glaciation: Evidence for a syn-glacial sulfidic deep ocean
TL;DR: In this article, the Maieberg Formation was analyzed in four sections of the Keilberg Member to the Marinoan glaciation in northern Namibia, and the results showed that sulfate profiles and other geochemical characteristics in the basal, transgressive cap dolostone were nearly identical in all sections and indicate deposition from a water mass with low sulfate concentrations.
Journal ArticleDOI
Early Triassic seawater sulfate drawdown
Huyue Song,Jinnan Tong,Thomas J. Algeo,Thomas J. Algeo,Haijun Song,Haiou Qiu,Yuanyuan Zhu,Li Tian,Steven M Bates,Timothy W. Lyons,Genming Luo,Lee R. Kump +11 more
TL;DR: In this paper, the authors analyzed carbonate-associated sulfate (CAS) from three Permo-Triassic sections in South China in order to document the behavior of the C-S cycle and its relationship to marine environmental changes during the mass extinction and its aftermath.
Journal ArticleDOI
Environmental Impacts of Heavy Metal Discharges from a Smelter in Deûle-canal Sediments (Northern France): Concentration Levels and Chemical Fractionation
TL;DR: In this article, heavy metal pollution in sediments derived from the Deule canal and sampled at different sites not far from a smelting plant has been examined in order to identify the sources of these metals and to assess the sediment environmental quality.
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.
Book
Textbook of quantitative inorganic analysis
Izaak M. Kolthoff,E. B. Sandell +1 more
TL;DR: Textbook of quantitative inorganic analysis as discussed by the authors, Textbook of qualitative and quantitative analysis of inorganic properties, textbook of quantitatively analytically-inorganic analysis, as discussed by the authors.
Journal ArticleDOI
The Sulfur Cycle
TL;DR: The authors' model of the sulfur cycle can draw some conclusions that man is now contributing about one half as much as nature to the total atmospheric burden of sulfur compounds, but by A.D. 2000 he will be contributing about as much, and in the Northern Hemisphere alone he is more than matching nature.
Journal ArticleDOI
Pyrite: Its Rapid Formation in a Salt Marsh and Its Importance In Ecosystem Metabolism
TL;DR: Pyrite formation in salt-marsh peat occurs more rapidly than is generally thought for any natural system, and the rates of sulfate reduction and ecosystem respiration may be grossly underestimated.
Book
Rock and mineral analysis
TL;DR: In this paper, the authors provide an up-to-date treatment of the problems associated with the analysis of geological materials, including the requesite steps from selection of the sample and choice of elements to the facilities needed, preparation of sample, methods for the determination of individual constituens and reporting of the results of the analysis.