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Magma generation processes by crustal melting at subduction zone with continental crust

Research Project

Project/Area Number 23540555
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Petrology/Mineralogy/Science of ore deposit
Research InstitutionKyoto University

Principal Investigator

KANEKO Katsuya  京都大学, 人間・環境学研究科(研究院), 助教 (40335229)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords大陸地殻 / 地殻溶融 / 大規模珪長質マグマ活動 / カルデラ火山 / 島弧火山 / 地殻溶融過程 / 物理モデル / マグマ生成 / マグマ含水量 / 火山 / 地殻内マグマ過程 / 数値実験 / 島弧安山岩火山
Research Abstract

We carried out numerical experiments of magma genesis by crustal melting on the basis of physical model where hot magmas injecting into crust repeatedly melt the crust and produce magmas, in order to clarify amount, composition, and generation timescale of magma produced by crustal melting and understand variety of igneous activities in continental margin. The results of the numerical experiments indicate that (1) the initial crustal temperature and injection rate of the hot magmas govern total amount of crustal melt, (2) composition of crustal melt is dominantly affected by the initial crustal temperature and injection thickness of the hot magma, and (3) generation timescale for magmas with more than 1 km3 volume is several ten thousands years. These results are consistent with features of natural igneous activity.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (19 results)

All 2014 2013 2012 2011 Other

All Journal Article (2 results) Presentation (17 results) (of which Invited: 3 results)

  • [Journal Article] 阿蘇4巨大噴火のマグマ発生と噴火推移2014

    • Author(s)
      金子克哉
    • Journal Title

      科学, 岩波書店

      Volume: 84巻 Pages: 94-96

    • Related Report
      2013 Final Research Report
  • [Journal Article] 阿蘇4 巨大噴火のマグマ発生と噴火推移2014

    • Author(s)
      金子克哉
    • Journal Title

      科学(岩波書店)

      Volume: 84 Pages: 94-96

    • Related Report
      2013 Annual Research Report
  • [Presentation] 下部地殻溶融により生成するマグマの量,組成,および生成時間スケール2013

    • Author(s)
      金子克哉
    • Organizer
      日本地球惑星科学連合
    • Place of Presentation
      幕張メッセ
    • Related Report
      2013 Annual Research Report
  • [Presentation] Generation processes of magmas of large pyroclastic eruption cycles at Aso volcano, SW Japan2013

    • Author(s)
      Katsuya Kaneko, Takehiro Koyaguchi
    • Organizer
      IAVCEI
    • Place of Presentation
      鹿児島県民交流センター
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Amount, composition and timescale of magmas generated by melting in lower crust2013

    • Author(s)
      Katsuya Kaneko
    • Organizer
      IAVCEI
    • Place of Presentation
      鹿児島県民交流センター
    • Related Report
      2013 Annual Research Report
  • [Presentation] 地殻溶融時の温度とメルト分率の関係が地殻溶融マグマ生成過程に与える影響2012

    • Author(s)
      金子克哉
    • Organizer
      日本地球惑星科学連合2012年度連合大会
    • Place of Presentation
      千葉市
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Amount and Timescale of Magmas Generated by Crustal Melting: Insights through 1-D Physical Model2012

    • Author(s)
      Katsuya Kaneko
    • Organizer
      AOGS 10th Annual Meeting
    • Place of Presentation
      Singapore
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] 地殻溶融による生成するマグマの量,組成,時間スケール-地殻初期温度,高温マグマの貫入率および含水量の影響2012

    • Author(s)
      金子克哉
    • Organizer
      日本火山学会2012年秋季大会
    • Place of Presentation
      長野県御代田町
    • Related Report
      2012 Research-status Report
  • [Presentation] 高温マグマが大陸地殻へ貫入する場合に起こる地殻溶融マグマ生成の1次元物理モデル2011

    • Author(s)
      金子克哉
    • Organizer
      日本地球惑星科学連合2011年連合大会
    • Place of Presentation
      千葉市美浜区
    • Related Report
      2011 Research-status Report
  • [Presentation] 地殻溶融による珪長質および苦鉄質マグマの生成過程:一次元物理モデルによる量,組成,時間スケールの検討2011

    • Author(s)
      金子克哉
    • Organizer
      日本火山学会2011年秋季大会
    • Place of Presentation
      旭川市
    • Related Report
      2011 Research-status Report
  • [Presentation] One dimensional model on crustal melting by injections of hot magmas into continental crust2011

    • Author(s)
      Katsuya Kaneko
    • Organizer
      American Geophysical Union 2011 Fall meeting
    • Place of Presentation
      San Francisco, USA
    • Related Report
      2011 Research-status Report
  • [Presentation] 高温マグマが大陸地殻へ貫入する場合に起こる地殻溶融マグマ生成の1次元物理モデル

    • Author(s)
      金子克哉
    • Organizer
      地球惑星科学連合2011年大会
    • Place of Presentation
      千葉市
    • Related Report
      2013 Final Research Report
  • [Presentation] 地殻溶融による珪長質および苦鉄質マグマの生成過程:一次元物理モデルによる量, 組成, 時間スケールの検討

    • Author(s)
      金子克哉
    • Organizer
      日本火山学会2011年秋季大会
    • Place of Presentation
      旭川
    • Related Report
      2013 Final Research Report
  • [Presentation] One dimensional model on crustal melting by injections of hot magmas into continental crust

    • Author(s)
      Katsuya Kaneko
    • Organizer
      American Geophysical Union 2011 Fall meeting
    • Place of Presentation
      San francisco
    • Related Report
      2013 Final Research Report
  • [Presentation] 地殻溶融時の温度とメルト分率の関係が地殻溶融マグマ生成過程に与える影響

    • Author(s)
      金子克哉
    • Organizer
      地球惑星科学連合2012年大会
    • Place of Presentation
      千葉市
    • Related Report
      2013 Final Research Report
  • [Presentation] Amount and Timescale of Magmas Generated by Crustal Melting : Insights through 1-D Physical Model

    • Author(s)
      Katsuya Kaneko
    • Organizer
      AOGS2012
    • Place of Presentation
      Singapore
    • Related Report
      2013 Final Research Report
  • [Presentation] 地殻溶融による生成するマグマの量, 組成, 時間スケール~地殻初期温度, 高温マグマの貫入率および含水量の影響

    • Author(s)
      金子克哉
    • Organizer
      日本火山学会2012年秋季大会
    • Place of Presentation
      長野県御田代町
    • Related Report
      2013 Final Research Report
  • [Presentation] Generation processes of magmas of large pyroclastic eruption cycles at Aso volcano, SW Japan

    • Author(s)
      Katsuya Kaneko
    • Organizer
      IAVCEI 2013 General Assembly
    • Place of Presentation
      Kagoshima
    • Related Report
      2013 Final Research Report
  • [Presentation] Amount, composition and timescale of magmas generated by melting in lower crust

    • Author(s)
      Katsuya Kaneko
    • Organizer
      IAVCEI 2013 General Assembly
    • Place of Presentation
      Kagoshima
    • Related Report
      2013 Final Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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