A Regularly Interstratified Chlorite/Vermiculite in a Talc-Chlorite Vein

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説明

A regularly interstratified chlorite/vermiculite was found at the surface of an outcrop of talc-chlorite vein which developed in a serpentinite body at Torika, Saipi-Cho, Nagasaki Prefecture, Japan. The regularly interstratified chlorite/vermiculite, which is regarded as a weathering product of Al-poor Mg-chlorite with IIb polytype on the basis of its mode of occurrence, was investigated by x-ray, chemical, infrared and thermal methods together with the parent chlorite. The regularly interstratified chlorite/vermiculite forms an intimate mixture with chlorite in varying proportions, and seems to be a relatively stable intermediate phase in the weathering process of chlorite. The chemical and x-ray properties of the regularly interstratified chlorite/vermiculite suggest the preferential removal of alternate hydroxide sheets of chlorite during the weathering Process. The regularly interstratified chlorite/vermiculite gives hkl reflections, which have been indexed in terms of an orthohexagonal cell (α=5.34, b=9.25, c=28.8Å). The 20l intensities are interpreted as a stacking sequence composed of Iαvermiculite and IIb chlorite layer types.

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詳細情報 詳細情報について

  • CRID
    1390853649685736832
  • NII論文ID
    120006876057
  • NII書誌ID
    AA00732897
  • DOI
    10.5109/1546080
  • HANDLE
    2324/1546080
  • ISSN
    00236179
  • 本文言語コード
    en
  • 資料種別
    departmental bulletin paper
  • データソース種別
    • JaLC
    • IRDB
    • Crossref
    • CiNii Articles
    • OpenAIRE
  • 抄録ライセンスフラグ
    使用可

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