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Publication Detail
The role of riverine particulate material on the global cycles of the elements
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Oelkers EH, Gislason SR, Eiriksdottir ES, Jones M, Pearce CR, Jeandel C
  • Publication date:
    01/06/2011
  • Journal:
    Applied Geochemistry
  • Volume:
    26
  • Issue:
    SUPPL.
  • Status:
    Published
  • Print ISSN:
    0883-2927
Abstract
A review of the relative masses of continental weathering products transported to the oceans indicates that particulate fluxes dominate dissolved fluxes for most elements. The degree to which this particulate material plays a role in the compositional evolution of seawater depends on its dissolution rate, which appears to be rapid due to its high surface area. Consideration of the results of batch experiments and mineral saturation state calculations suggest that much of the mass dissolved into seawater from particulate material dissolution is rapidly removed by the precipitation of secondary minerals. Although this process limits the degree to which the overall concentration of elements in seawater are affected by the addition of particulate material, the dissolution of isotopically distinct particulate phases may affect the isotopic composition of seawater over remarkably short timescales. © 2011 Elsevier Ltd.
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