Equilibrium form of negative crystals in igneous quartz

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著者

    • ASADA Ryuji
    • Department of Earth Sciences, Faculty of Science, Kanazawa University
    • KITAMURA Masao
    • Department of Geology and Mineralogy, Graduate School of Science, Kyoto University

抄録

Morphology and internal textures of negative crystals in igneous quartz were studied by combining microscopic observation and annealing experiments of natural specimens. Judged from its symmetry and the annealing experiments, the equilibrium form of the negative crystals is estimated to be rounded bipyramidal. The rounded bipyramidal shape suggests that only rhombohedral faces are singular under the growth conditions of quartz crystals in felsic magmas. Thermal history of these crystals after the eruption of magmas was estimated by the morphology and the internal texture of the negative crystals.

収録刊行物

  • Journal of mineralogical and petrological sciences

    Journal of mineralogical and petrological sciences 97(2), 59-69, 2002-04

    日本鉱物科学会

参考文献:  19件中 1-19件 を表示

各種コード

  • NII論文ID(NAID)
    10008204457
  • NII書誌ID(NCID)
    AA11460926
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13456296
  • データ提供元
    CJP書誌  J-STAGE 
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