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A mechanism of explosive eruption of low-viscosity mafic magma

Research Project

Project/Area Number 16K05605
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Petrology/Mineralogy/Economic geology
Research InstitutionShizuoka University

Principal Investigator

Ishibashi Hidemi  静岡大学, 理学部, 准教授 (70456854)

Co-Investigator(Kenkyū-buntansha) 奥村 聡  東北大学, 理学研究科, 准教授 (40532213)
三井 雄太  静岡大学, 理学部, 講師 (80717950)
Research Collaborator Yasuda Atsushi  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords爆発的噴火 / マイクロライト / マグマ / 減圧結晶作用 / レオロジー / 粘性-脆性遷移 / 苦鉄質 / 斜長石 / テクスチャー / 玄武岩 / 富士火山 / 噴火様式 / 玄武岩質マグマ / 破砕
Outline of Final Research Achievements

We performed thermodynamic simulation of degassing-driven crystallization of mafic melts. The results suggest that the behaviors of crystallization are primarily controlled by the temperature of melt and the temperature-dependent change of crystallization behavior is responsible for the variation of eruption style of mafic magmas. In addition, we analyzed run samples of cooling-driven crystallization experiments of a high-Al basaltic melt from Hawaii. The results suggest that kinetic delay of crystallization induces the change of liquid line of descent and overestimation of melt-plagioclase geothermometers against quenched temperatures whereas melt-plagioclase partition coefficient of anorthite component does not depend on substantial cooling rate. Therefore, plagioclase-melt thermmeters can be applied to estimate temperature of natural mafic magmas if kinetic delay is minimum due to the effects of shear flow and/or H2O in melt.

Academic Significance and Societal Importance of the Research Achievements

本研究では,苦鉄質マグマの噴火ダイナミクスの多様性の原因とされるマイクロライト減圧結晶作用が,マグマの温度によって本質的にコントロールされることを明らかにした.この成果は,苦鉄質マグマの噴火ダイナミクスを理論モデル化するうえで温度が極めて本質的な要素であることを示唆する.また,マグマ温度の本質的重要性を明らかにしたことから,今後,火山噴出物の物質科学的研究を進めるうえでの指針を示したと言える.加えて,火山防災的な観点では,初期に噴出したマグマの温度を調べることで,同じ条件のマグマが噴出した時におこる現象を推測できる可能性を示した.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (41 results)

All 2019 2018 2017 2016

All Journal Article (14 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 9 results,  Open Access: 7 results,  Acknowledgement Compliant: 2 results) Presentation (27 results) (of which Int'l Joint Research: 7 results)

  • [Journal Article] A simple procedure for measuring magma rheology2019

    • Author(s)
      Aika K. Kurokawa, Takahiro Miwa, Hidemi Ishibashi
    • Journal Title

      Journal of Disaster Research

      Volume: in press

    • NAID

      130007659141

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultra-magnesian olivine-bearing ultramafic lava blocks within Cenozoic accretionary sediments at Shizuoka, Japan: implications for young, hot pkume activity beneath the western Pacific Plate2018

    • Author(s)
      Yoshihiro Nakamura, Hidemi Ishibashi, Atsushi Yasuda, Natsumi Hokanishi, Junji Yamamoto
    • Journal Title

      Lithos

      Volume: 324-325 Pages: 315-324

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Amphibole-melt disequilibrium in silicic melt of the Aso-4 caldera-forming eruption at Aso Volcano, SW Japan2018

    • Author(s)
      Hidemi Ishibashi, Yukiko Suwa, Masaya Miyoshi, Atsushi Yasuda, Natsumi Hokanishi
    • Journal Title

      Earth, Planets and Space

      Volume: 70 Pages: 137-137

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 苦鉄質マグマの温度が減圧結晶作用と噴火ダイナミクスに及ぼす影響:伊豆大島1986年噴火の玄武岩質安山岩メルトの例2018

    • Author(s)
      石橋秀巳,種田凌也
    • Journal Title

      静岡大学地球科学研究報告

      Volume: 45 Pages: 55-66

    • NAID

      130008118497

    • Related Report
      2018 Annual Research Report
    • Open Access
  • [Journal Article] 熱力学的結晶作用シミュレーションによるメルト粘性スケールの信頼性の検討(序報)2018

    • Author(s)
      石橋秀巳,鈴木琉斗
    • Journal Title

      静岡大学地球科学研究報告

      Volume: 45 Pages: 67-76

    • NAID

      130008118495

    • Related Report
      2018 Annual Research Report
    • Open Access
  • [Journal Article] Rheological behavior of water-ash mixtures from Sakurajima and Ontake volcanoes: Implications for lahar flow dynamics.2018

    • Author(s)
      Aika K. Kurokawa, Hidemi Ishibashi, Takahiro Miwa, Futoshi Nanayama
    • Journal Title

      Bulletin of Volcanology

      Volume: in press

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] 玄武岩質マグマの減圧結晶作用と噴火ダイナミクスに及ぼすプレ噴火条件の影響:富士山1707年噴火玄武岩質マグマの例2017

    • Author(s)
      石橋秀巳,天野大和
    • Journal Title

      静岡大学地球科学研究報告

      Volume: 44 Pages: 17-29

    • NAID

      130008118579

    • Related Report
      2017 Research-status Report
    • Open Access
  • [Journal Article] 斑晶鉱物の元素拡散モデリングに基づく噴火準備タイムスケールの研究の現状2017

    • Author(s)
      菅野拓矢,石橋秀巳
    • Journal Title

      静岡大学地球科学研究報告

      Volume: 44 Pages: 47-64

    • NAID

      130008118577

    • Related Report
      2017 Research-status Report
    • Open Access
  • [Journal Article] Magma reservoir conditions beneath Tsurumi volcano, SW Japan: Evidence from amphibole thermobarometry and seismicity2017

    • Author(s)
      Shiho Nagasaki, Hidemi Ishibashi, Yukiko Suwa, Atsushi Yasuda, Natsumi Hokanishi, Takahiro Ohkura, Keiji Takemura
    • Journal Title

      Lithos

      Volume: 278-281 Pages: 153-165

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Cooling rate responsiveness of pyroxene geothermometer2017

    • Author(s)
      Junji Yamamoto, Hidemi Ishibashi, Koshi Nishimura
    • Journal Title

      Geochemical Journal

      Volume: in press

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Elastic effects around magma reservoir and pathway by historical earthquake; A case study on Mt. Fuji, Japan2016

    • Author(s)
      Masaki Hosono, Yuta Mitsui, Hidemi Ishibashi, Jun Kataoka
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 3 Pages: 33-33

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Micro- and Nano-inclusions in a Superdeep Diamond from Sao Luiz, Brazil2016

    • Author(s)
      Hiroyuki Kagi, Dmitry A. Zedgenizov, Hiroaki Ohfuji, Hidemi Ishibashi
    • Journal Title

      Geochemistry International

      Volume: 54 Pages: 834-838

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Relationship between textural and photoluminescence spectral features of natural polycrystalline diamonds, carbonado and implication for its origin2016

    • Author(s)
      Hidemi Ishibashi, Hiroyuki Kagi, Shoko Odake, Hiroaki Ohfuji, Hiroshi Kitawaki
    • Journal Title

      Geochemistry International

      Volume: 54 Pages: 882-889

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] 高温一軸圧縮実験によるマグマの粘性率測定:北海道,白滝の黒曜石溶岩の例2016

    • Author(s)
      石橋秀巳,佐野恭平
    • Journal Title

      静岡大学地球科学研究報告

      Volume: 43 Pages: 21-31

    • NAID

      110010056040

    • Related Report
      2016 Research-status Report
    • Open Access / Acknowledgement Compliant
  • [Presentation] 苦鉄質マグマの噴火様式に及ぼす温度の影響:伊豆大島1986年噴火の例2018

    • Author(s)
      石橋秀巳,種田凌也,安田敦,外西奈津美
    • Organizer
      日本火山学会2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 角閃石-斜長石共存関係から探る流紋岩質単成火山のマグマだまりプロセス:伊豆カワゴ平火山の例2018

    • Author(s)
      諏訪由起子,石橋秀巳,外西奈津美,安田敦
    • Organizer
      日本火山学会2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 斜長石の組織・化学組成に及ぼす冷却速度の影響:玄武岩質メルトの動的冷却結晶化実験2018

    • Author(s)
      種田凌也,石橋秀巳,外西奈津美,安田敦
    • Organizer
      日本火山学会2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 箱根火山60kaカルデラ形成噴火に伴う火砕流の噴火準備過程2018

    • Author(s)
      辻原諒,小木曽哲,佐野貴司,石橋秀巳
    • Organizer
      日本火山学会2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 角閃石斑晶・クリスタルクロットを用いた雲仙平成噴火のプレ噴火過程の制約2018

    • Author(s)
      岩橋くるみ,安田敦,石橋秀巳,外西奈津美
    • Organizer
      日本火山学会2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Aso4珪長質マグマ中の角閃石-ホストメルト間非平衡2018

    • Author(s)
      石橋秀巳,諏訪由起子,三好雅也,安田敦,外西奈津美
    • Organizer
      日本鉱物科学会2018年年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Plagioclase-hosted melt inclusions of the 1986 eruption at Izu-Oshima volcano, Japan: Implication for pre-eruptive process2018

    • Author(s)
      Ryoya Oida, Hidemi Ishibashi, Takahiro Miwa, Natsumi Hokanishi, Atsushi Yasuda
    • Organizer
      JPGU 2018 Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pre-eruptive magmatic process of silicic monogenetic volcano inferred from amphibole phenocrysts: A case study of Izu-Kawagodaira volcano2018

    • Author(s)
      Yukiko Suwa, Hidemi Ishibashi, Natsumi Hokanishi, Atsushi Yasuda
    • Organizer
      JPGU 2018 Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pre-eruptive process of the 1991-1995 eruption at Unzen volcano, Japan: constraints from amphibole phenocrysts2018

    • Author(s)
      Kurumi Iwahashi, Hidemi Ishibashi, Natsumi Hokanishi, Atsushi Yasuda
    • Organizer
      JPGU 2018 Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] An EBSD study of plagioclase glomerocrysts in Aokigahara lava flow from Fuji volcano, Japan: Implication for their formation process.2018

    • Author(s)
      Yuji Nakajima, Hidemi Ishibashi, Yuki Kakihata, Natsumi Hokanishi, Katsuyoshi Michibayashi, Atsushi Yasuda
    • Organizer
      JPGU 2018 Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Rhyolite-MELTSプログラムを用いたメルト粘性スケールの再現性の検討2018

    • Author(s)
      石橋秀巳,鈴木琉斗
    • Organizer
      日本地球惑星科学連合大会2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 減圧過程における玄武岩質マグマの粘性率変化:等温過程 vs. 断熱過程2017

    • Author(s)
      石橋秀巳
    • Organizer
      日本火山学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 伊豆大島1986年B火口噴火のガブロ捕獲岩にみられる粒間メルト混合2017

    • Author(s)
      石橋秀巳, 種田凌也,千葉達朗,外西奈津美,安田敦
    • Organizer
      日本火山学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 斑晶の元素拡散モデリングに基づく噴火準備タイムスケール研究の現状2017

    • Author(s)
      菅野拓矢,石橋秀巳
    • Organizer
      日本火山学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 富士火山, 2500年前のS-18サブプリニー式噴火のプレ噴火プロセス2017

    • Author(s)
      菅野拓矢,石橋秀巳,外西奈津美,安田敦
    • Organizer
      日本火山学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 伊豆半島,カワゴ平火山における噴火の準備過程: 溶岩流中の角閃石斑晶からの制約2017

    • Author(s)
      諏訪由起子,石橋秀巳,外西奈津美,安田敦
    • Organizer
      日本火山学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 斜長石斑晶の化学的組織的特徴が示す富士火山のマグマ供給系の異方性2017

    • Author(s)
      井上智未,石橋秀巳,外西奈津美,安田敦
    • Organizer
      日本火山学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 箱根火山60kaカルデラ形成噴火の準備過程2017

    • Author(s)
      辻原諒,石橋秀巳,外西奈津美,安田敦
    • Organizer
      日本火山学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 伊豆大島1986年噴火の安山岩質メルトを含む斑レイ岩ゼノリス2017

    • Author(s)
      石橋秀巳, 種田凌也,千葉達朗,外西奈津美,安田敦
    • Organizer
      日本地球惑星科学連合大会2017年大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 減圧結晶作用に伴う玄武岩質メルトの粘性率変化:富士山宝永噴火玄武岩質マグマの例2017

    • Author(s)
      石橋秀巳, 天野大和
    • Organizer
      日本地球惑星科学連合大会2017年大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 富士火山の斑レイ岩捕獲岩に含まれるメルト包有物2016

    • Author(s)
      田中佑希子,石橋秀巳,外西奈津美,安田敦
    • Organizer
      日本火山学会2016年秋季大会
    • Place of Presentation
      富士吉田市市民会館(山梨県富士吉田市)
    • Year and Date
      2016-10-12
    • Related Report
      2016 Research-status Report
  • [Presentation] 斜長石斑晶組織から探る富士火山のマグマ供給系2016

    • Author(s)
      井上智未,石橋秀巳,外西奈津美,安田敦
    • Organizer
      日本火山学会2016年秋季大会
    • Place of Presentation
      富士吉田市市民会館(山梨県富士吉田市)
    • Year and Date
      2016-10-12
    • Related Report
      2016 Research-status Report
  • [Presentation] 富士火山宝永噴火の玄武岩質マグマの上昇過程:斜長石マイクロライトからの制約2016

    • Author(s)
      天野大和,石橋秀巳,外西奈津美,安田敦
    • Organizer
      日本火山学会2015年秋季大会
    • Place of Presentation
      富士吉田市市民会館(山梨県富士吉田市)
    • Year and Date
      2016-10-12
    • Related Report
      2016 Research-status Report
  • [Presentation] Redox variation of erupting magma during Strombolian activity2016

    • Author(s)
      Takahiro Miwa, Hidemi Ishibashi
    • Organizer
      Goldschmidt Conference 2016
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2016-06-29
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Extremely hot plume origin of ultramafic lava in the late Paleogene accretionary prism from shizuoka, Japan2016

    • Author(s)
      Yoshihiro Nakamura, Hidemi Ishibashi, Natsumi Hokanishi, Atsushi Yasuda
    • Organizer
      Goldschmidt Conference 2016
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2016-06-29
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Melt inclusions in gabbroic xenoliths from Fuji volcano; implication for criptic silicic magma chamber2016

    • Author(s)
      Yukiko Tanaka, Hidemi Ishibashi, Natsumi Hokanishi, Atsushi Yasuda
    • Organizer
      Goldschmidt Conference 2016
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2016-06-29
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 3相系マグマのレオロジー則と粘性-脆性遷移:桜島昭和溶岩の例2016

    • Author(s)
      石橋秀巳,三輪学央,三井雄太
    • Organizer
      日本地球惑星科学連合大会2016年大会
    • Place of Presentation
      幕張メッセ(千葉県千葉市)
    • Year and Date
      2016-05-22
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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