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Electron microprobe analysis of suspended matter in the Angola Basin
Bernard, P.; Eisma, D.; Van Grieken, R. (1999). Electron microprobe analysis of suspended matter in the Angola Basin, in: VLIZ Coll. Rep. 29(1999). VLIZ Collected Reprints: Marine and Coastal Research in Flanders, 29: pp. chapter 2
In: (1999). VLIZ Coll. Rep. 29(1999). VLIZ Collected Reprints: Marine and Coastal Research in Flanders, 29. Flanders Marine Institute (VLIZ): Oostende, more
In: VLIZ Collected Reprints: Marine and Coastal Research in Flanders. Vlaams Instituut voor de Zee: Oostende. ISSN 1376-3822, more

Also published as
  • Bernard, P.; Eisma, D.; Van Grieken, R. (1999). Electron microprobe analysis of suspended matter in the Angola Basin. J. Sea Res. 41(1-2): 19-33, more

Available in  Authors 

Keywords
    Biochemical composition; Ocean basins; Sediment traps; Sedimentation; Suspended particulate matter; Marine
Author keywords
    Ase, atlantic, angola basin

Authors  Top 
  • Bernard, P.
  • Eisma, D., more
  • Van Grieken, R., more

Abstract
    Electron microprobe analysis of suspended-matter samples collected at different water depths at ten stations in the Angola Basin indicated that at each station, from top to bottom, the elementary composition of the suspended matter was very similar and differed from the composition of the suspended matter at the adjacent stations. This indicates that the downward settling of the suspended matter is much faster than the horizontal transport and mixing by the currents. Assuming that the suspended matter settles in the form of flocs, or is scavenged by settling flocs, the suspended matter can indeed reach the bottom in a shorter period than needed for the currents to cover the distance between adjacent stations. Comparison with sediment trap data from the literature shows that also lateral transports and/or deep water gyres have to be invoked to further increase residence times of suspended matter in the water column.

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