蛇紋石の非晶質化と深発地震 Amorphization of Serpentine at High Pressure and High Temperature : Implications for the Mechanism of Deep-focus Earthquakes

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In situ X-ray diffraction measurements of the phase transformations in serpentine have been carried out using a multianvil high-pressure system combined with synchrotron radiation. Serpentine persisted upon compression to 28 GPa at a room temperature, while it became amorphous in a limited temperature interval of 200-400°C at pressures above 13 GPa. A rapid crystallization of high pressure phases then started at temperatures greater than about 400°C. These observations suggest that the amorphization of serpentine is an unlikely mechanism of deep-focus earthquakes associated with subduction of slabs, as the temperatures of these slabs are generally higher than those of the rapid crystallization regime.

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  • 日本結晶学会誌  

    日本結晶学会誌 38(6), 396-399, 1996-12-31 

    The Crystallographic Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002025433
  • NII書誌ID(NCID)
    AN00188364
  • 本文言語コード
    JPN
  • 資料種別
    OTR
  • ISSN
    03694585
  • NDL 記事登録ID
    4170863
  • NDL 雑誌分類
    ZM46(科学技術--地球科学--岩石・鉱物・鉱床)
  • NDL 請求記号
    Z15-138
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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