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pyrite formation accumulation

  • Pyrite Mineral Uses and Properties Geology

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  • Sedimentary pyrite formation: An update ScienceDirect

    Sedimentary pyrite formation during early diagenesis is a major process for controlling the oxygen level of the atmosphere and the sulfate concentration in seawater over geologic time. The amount of pyrite that may form in a sediment is limited by the rates of supply of decomposable organic matter, dissolved sulfate, and reactive detrital iron

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  • (PDF) Iron monosulfide accumulation and pyrite formation

    This may indicate that (i) pyrite formation via reaction between dissolved Fe (including Fe clusters) and H2S was limited by low availability of dissolved Fe or (ii) reaction kinetics of pyrite formation via the H2S pathway may be relatively slow in natural reducing sediments.

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  • Iron monosulfide accumulation and pyrite formation in

    Alternatively, an inherently slow rate of pyrite formation in the AVSrich sediments would be in line with earlier findings that pyrite formation under strictly anoxic conditions can be very slow (Sweeney and Kaplan, 1973, Schoonen and Barnes, 1991, Wilkin and Barnes, 1996, Neumann et al., 2005).

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  • Pathways for Neoarchean pyrite formation constrained by

    We suggest that the relative contributions of these pools to the formation of pyrite depend on both the accumulation of the insoluble pool and the rate of

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  • Pyrite Wikipedia

    The mineral pyrite (/ ˈ p aɪ r aɪ t /), or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula FeS 2 (iron(II) disulfide). Pyrite is considered the most common of the sulfide minerals. Pyrite's metallic luster and pale brassyellow hue give it a superficial resemblance to gold, hence the wellknown nickname

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