, Volume 52, Issue 2, pp 271–283 | Cite as

The geochemistry of deepwater particulate matter over the hydrothermal field at 9°d50′ N (the East Pacific Rise)

  • V. N. LukashinEmail author
  • L. L. Demina
  • V. V. Gordeev
  • V. Yu. Gordeev
Marine Geology


The results of geochemical studies of particulate matter in the water mass over the hydrothermal field at 9°50′ N on the East Pacific Rise are presented. The particulate matter was tested in background waters, in the buoyant plume, and in the near-bottom waters. The contents of Si, Al, P, Corg, Fe, Mn, Cu, Zn, Ni, Co, As, Cr, Cd, Pb, Ag, and Hg were determined. No definite correlations were found between the ele-ments in the background waters. Many of the chemical elements correlated with Fe and associated with its oxyhydroxides in the buoyant plume. In the near-bottom waters, microelements are associated with Fe, Zn, and Cu (probably, to their sulfides formed under fluid mixing with seawater). The matter precipitated in a sed-imentation trap was similar to the near-bottom particulate matter in the elemental composition.


Bottom Water Sediment Trap Hydrothermal Solution Hydrothermal Field East Pacific Rise 
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Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • V. N. Lukashin
    • 1
    Email author
  • L. L. Demina
    • 1
  • V. V. Gordeev
    • 1
  • V. Yu. Gordeev
    • 1
  1. 1.Shirshov Institute of OceanologyRussian Academy of SciencesMoscowRussia

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