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Book: Acid Sulfate Weathering
Published by: Soil Science Society of America

 

This chapter in ACID SULFATE WEATHERING

  1.  p. 19-36
    sssa special publication 10.
    Acid Sulfate Weathering

    J.A. Kittrick, D.S. Fanning and L.R. Hossner (ed.)

    ISBN: 978-0-89118-905-3

     
    Published: 1982


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doi:10.2136/sssaspecpub10.c2

Controls and Consequences of Sulfate Reduction Rates in Recent Marine Sediments1

  1. M. B. Goldhaber and
  2. I. R. Kaplan2

Abstract

A brief review is given of the process of bacterial sulfate reduction in respect to other processes in ocean sediments. In particular, rates of sulfate reduction are discussed in context of control mechanisms and geochemical consequences. It is concluded that besides temperature and pressure, which are cosmopolitan parameters influencing most biological processes, the rate of sulfate reduction is dependent on 1) total organic carbon preserved in sediment and 2) state of complexing of the organic matter and its availability for biogenic degradation. These two parameters are in turn influenced by 3) the environment of deposition and 4) the rate of sediment accumulation. Correlations are presented showing a direct relationship between rate of sulfate reduction and rate of sediment accumulation. The consequences of different rates of sulfate reduction on pyrite formation and isotope fractionation are discussed.

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Copyright © 1982. Copyright 1982 by the Soil Science Society of America, Inc., 5585 Guilford Rd., Madison, WI 53711 USA