藤前干潟堆積物(<180μm画分)の化学組成  [in Japanese] Geochemical Characteristics of Sediments(<180μm)from the Fujimae Tidal Flat, Aichi Prefecture, Central Japan  [in Japanese]

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Author(s)

    • 杉谷 健一郎 SUGITANI Kenichiro
    • 名古屋大学環境学研究科都市環境学専攻 Division of Environmental Engineering and Architecture, Nagoya University Graduate School of Environmental Studies
    • 仲島 雅哉 NAKASHIMA Masaya
    • 名古屋大学人間情報学研究科物質・生命情報学専攻 Division of Informatics for Natural Sciences, Graduate School of Human Informatics, Nagoya University

Abstract

Geochemical characteristics of surface (0-10cm) sediments (110 samples) collected from the Fujimae tidal flat, Aichi Prefecture, Japan are studied. Tidal flat sediments (<180<i>μ</i>m size fraction) in the northwestern region are enriched in Al<sub>2</sub>O<sub>3</sub>, Na<sub>2</sub>O and CaO, but depleted in Zn and Cr, compared with those in the central and eastern regions. These differences are not attributed to the variation in grain size, but rather to that in compositions of detrital materials. The tidal flat sediments at the central and eastern regions are also characterized by the presence of yellowish-brown surface layers less than 3cm thick, which overlie black inner layers. In general, these surface layers are enriched in P<sub>2</sub>O<sub>5</sub> compared with the inner layers. This may be attributed partly to redistribution of phosphorus from the inner layer to the surface layer and its adsorption on Fe-hydroxide. Calculations of enrichment factors for minor elements show that some heavy metals such as Zn, Cu and Pb are markedly enriched in the sediments.

Journal

  • Journal of Japan Society on Water Environment

    Journal of Japan Society on Water Environment 24(11), 766-772, 2001-11-10

    Japan Society on Water Environment

References:  23

Codes

  • NII Article ID (NAID)
    10008006051
  • NII NACSIS-CAT ID (NCID)
    AN10372439
  • Text Lang
    JPN
  • Article Type
    NOT
  • ISSN
    09168958
  • NDL Article ID
    5975878
  • NDL Source Classification
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL Call No.
    Z16-1045
  • Data Source
    CJP  NDL  J-STAGE 
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