Winchite from Mt. Hiei contact aureole, Kyoto, Japan.

  • HIRAJIMA Takao
    Department of Geology and Mineralogy, Graduate School of Science Kyoto University
  • NAKAMURA Daisuke
    Department of Geology and Mineralogy, Graduate School of Science Kyoto University Present address: Department of Earth and Planetary Sciences, Tokyo Institute of Technology
  • SHIRAHATA Katsushi
    Department of Geology and Mineralogy, Graduate School of Science Kyoto University Present address: Tohoku Regional Agricultural Administration Office

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抄録

Sodic-calcic amphibole closely associated with aegirine-augite was newly found from a sandy hornfels at Mt. Hiei contact aureole, Kyoto, Japan. The amphibole shows a pleochroism of X=colorless, Y=blue and Z=light blue and is winchite with significant amounts of TiO2 (1.5-2.5 wt.%) and of Mg-Fe-Mn-Li amphibole component at B site (ca. 0.1-0.4 cations for O=23 basis). The chemical composition and the coexisting phases of the winchite in this study are similar to those in the alkaline igneous complex.

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詳細情報

  • CRID
    1390282681521404288
  • NII論文ID
    10004952094
  • NII書誌ID
    AA11460926
  • DOI
    10.2465/jmps.95.107
  • ISSN
    13493825
    13456296
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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