Experimental constraints on the hydartion retas of peridotites in the mantle wedge condition

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  • マントルウェッジにおけるかんらん岩の加水反応速度に関する実験的研究

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Abstract

In order to obtain the hydration rates of peridotites under mantle wedge conditions, we have conducted the hydration experiments using the piston–cylinder apparatus at 580°C and 1.3 GPa. The reaction was not clearly discernible in olivine powder. In contrast, olivine in lherzolite powder was reacted with SiO2 released during orthopyroxene alteration. The obtained conversion degrees were fitted using the Avrami equation. Then, we got the apparent growth velocity G ~ 1μm/day. Comparing the G value with the porous flow velocities, it is inferred that the mostly complete hydration reaction will be established in the slow porous flow.

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Details 詳細情報について

  • CRID
    1390001205546994688
  • NII Article ID
    10030867510
  • NII Book ID
    AA12444619
  • DOI
    10.14824/jakoka.2012.0_17
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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