Condition of Magma chamber and eruptive process of Ofunato scoria in Ofunato stage, Miyakejima volcano

DOI
  • Ushioda Masashi
    Research Institute of Earthquake and Volcano Geology, National Institute of Advanced Industrial Science and Technology
  • Takahashi Eiichi
    Department of Earth and Planetary Sciences, Tokyo Institute of Technology
  • Suzuki Toshihiro
    Department of Earth and Planetary Sciences, Tokyo Institute of Technology
  • Hamada Morihisa
    Department of Solid Earth Geochemistry, Japan Agency for Marine-Earth Science and Technology

Bibliographic Information

Other Title
  • 三宅島火山大船戸期のマグマ溜まり条件と大船戸スコリアの噴出過程

Abstract

High-pressure melting experiments and analyses of zoning profile on olivine phenocrysts were performed to estimate conditions of magma chamber and the time scale from ascent of magma to eruption. Temperature, pressure and H2O content in melt for magma chamber condition were ~1100°C, ~150MPa, 3.0wt.%, respectively. Magma might ascend to shallower part and remain for a few days to a few dozen days before eruption.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390002184863150208
  • NII Article ID
    130007785366
  • DOI
    10.14824/jakoka.2016.0_12
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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