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Effect of water on elastic wave velocities of crustal materials: implications for distribution of water in seismogenic crust

Research Project

Project/Area Number 19540502
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Petrology/Mineralogy/Science of ore deposit
Research InstitutionYokohama National University

Principal Investigator

ISHIKAWA Masahiro  Yokohama National University, 大学院環境情報研究院, 准教授 (70232270)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2007: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords弾性波速度 / 地殻 / 水 / 高温高圧 / 断層 / ポアソン比 / 地震波速度
Research Abstract

兵庫県南部地震などの震源近傍では流体貯留層を示唆する低速度・高ポアソン比異常が発見され, 地震発生機構における水の役割が注目されている. 地殻内部におけるH2O流体の含水率マッピングは活断層型地震の発生機構を解明する上で重要であると考えられるが, 下部地殻~中部地殻におけるH2O流体の地震波速度への影響は高温高圧物性実験の視点から充分に研究が行われているとは言えない. したがって, 地殻内の含水率マッピングを行うためには, 地殻深部に相当する高温高圧条件で岩石-水系の弾性波速度を測定することが不可欠である. 我々は, まず, 含水条件において岩石の弾性波速度を測定する装置を開発し, 次に, 岩石-水系において基礎的な弾性波速度測定実験を最大0.5GPa, 500℃での条件下で行ない, 含水率や水が弾性波速度に及ぼす影響について考察した.

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (32 results)

All 2009 2008 2007

All Journal Article (12 results) (of which Peer Reviewed: 9 results) Presentation (20 results)

  • [Journal Article] Laboratory measurements of ultrasonic wave velocities of crustal rocks at high pressures and temperatures : Petrological structure of Izu-Bonin-Mariana arc crust2009

    • Author(s)
      Ishikawa, M. & Arima, M.
    • Journal Title

      Physics and Chemistry of the Earth's Interior. Crust, Mantle and Core(Gupta, Dasgupta)(Springer-Verlag)

      Pages: 143-152

    • Related Report
      2008 Final Research Report
  • [Journal Article] P-and S-wave velocities of the lowermost crustal rocks from the Kohistan arc : Implications for seismic Moho discontinuity attributed to abundant garnet2009

    • Author(s)
      Kono, Y., Ishikawa, M., Harigane, Y., Michibayashi, K., Arima, M.
    • Journal Title

      Tectonophysics 467

      Pages: 44-54

    • NAID

      120002851928

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Laboratory measurements of ultrasonic wave velocities of crustal rocks at high pressures and temperatures : petrological crustal structure of I zu-Bonin-Mariana arc2009

    • Author(s)
      Masahiro ISHIKAWA
    • Journal Title

      Physics and Chemistry of the Earth's Interior, Crust, Mantle and Core (ed. ) Gupta, Alok Krishna

      Pages: 143-152

    • Related Report
      2008 Annual Research Report
  • [Journal Article] P- and S-wave velocities of the lowermost crustal rocks from the Kohistanarc: Implications for seismic Moho discontinuity attributed to abundant garnet2009

    • Author(s)
      Yoshio KONO
    • Journal Title

      Tectonophysics 467

      Pages: 44-54

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Elastic properties of high-grade metamorphosed igneous rocks from Enderby Land and eastern Dronning Maud Land, Antarctica : evidence for biotite-bearing mafic lower crust2008

    • Author(s)
      Ishikawa, M., Shingai, E. & Arima, M.
    • Journal Title

      Geological Society London, Special Publications(Satish-Kumar, et al)(Geodynamic Evolution of East Antarctica : A Key to the East-West Gondwana Connection) 308(DOI : 10.1144/SP308.9)

      Pages: 183-194

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Simultaneous high P-T measurements of ultrasonic compressional and shear wave velocities in Ichino-megata mafic xenoliths : Their bearings on seismic velocity perturbations in lower crust of northeast Japan arc2008

    • Author(s)
      Nishimoto, S., Ishikawa, M., Arima, M., Yoshida, T., Nakajima, J
    • Journal Title

      Journal of Geophysical Research 113(doi : 10.1029/2008JB005587)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Temperature derivatives of elastic wave velocities in plagioclase(An51±1)above and below the order-disorder transition temperature2008

    • Author(s)
      Kono, Y., Miyake, A., Ishikawa, M., Arima, M.
    • Journal Title

      American Mineralogist 93

      Pages: 558-564

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Simultaneous high P-T measurements of ultrasonic compressional and shear wave velocities in Ichino-megata mafic xenoliths : Their bearings on seismic velocity perturbations in lower crust of northeast Japan arc2008

    • Author(s)
      Soshi NISHIMOTO
    • Journal Title

      Journal of Geophysical Research 113

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Elastic properties of high-grade metamorphosed igneous rocks from Enderby Land and eastern Dronning Maud Land, Antarctica : evidence for biotite-bearing mafic lower crust.2008

    • Author(s)
      Masahiro ISHIKAWA
    • Journal Title

      Geological Society London, Special Publications 308

      Pages: 183-194

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 複合化する自然環境問題と変貌する首都圏の地震災害リスター丹沢山地の斜面崩壊の事例-2008

    • Author(s)
      石川正弘
    • Journal Title

      地震と調査 3

      Pages: 20-25

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Temperature derivatives of elastic wave velocities in plagioclase (An51±1) above and below the order-disorder transition temperature2008

    • Author(s)
      Yoshio Kono
    • Journal Title

      American Mineralogist 93

      Pages: 558-564

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of H2O released by dehydration of serpentine and chlorite on compressional wave velocities ofperidotites at 1GPa and up to 1000℃2007

    • Author(s)
      Yoshio Kono
    • Journal Title

      Physics of the Earth and Planetary Interiors 161

      Pages: 215-223

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Plate strength through time : role of water in Gondwana assembly, Pangea breakup and Asia assembly2008

    • Author(s)
      Masahiro ISHIKAWA
    • Organizer
      Madagascar Earth Science Symposium
    • Place of Presentation
      アンタナナリボ
    • Related Report
      2008 Final Research Report
  • [Presentation] 高温高圧条件下での多結晶石英の弾性波速度への水の影響2008

    • Author(s)
      松本有希
    • Organizer
      日本地質学会
    • Place of Presentation
      秋田
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 伊豆衝突帯の構造とテクトニクス : 丹沢トーナル岩類の流体包有物マイクロサーモメトリーからの推定2008

    • Author(s)
      石川正弘
    • Organizer
      日本地質学会
    • Place of Presentation
      秋田
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 丹沢山地に産する角閃石ハンレイ岩の最大1.0GPa 800℃における弾性波速度測定2008

    • Author(s)
      勝根郷
    • Organizer
      日本地球惑星科学連合
    • Place of Presentation
      幕張
    • Related Report
      2008 Final Research Report
  • [Presentation] 丹沢山地に産する角閃石斑レイ岩の最大1. OGPa 800°Cにおける弾性波速度測定2008

    • Author(s)
      勝根 郷
    • Organizer
      日本地球惑星科学連合
    • Place of Presentation
      幕張
    • Related Report
      2008 Annual Research Report
  • [Presentation] Plate strength through time : role of water in Gondwana assembly, Pangea breakup and Asia assembly2008

    • Author(s)
      Masahiro ISHIKAWA
    • Organizer
      Madagascar Earth Scienoe Symposium
    • Place of Presentation
      アンタナナリボ
    • Related Report
      2008 Annual Research Report
  • [Presentation] Elastic wave velocities and Poisson's ratios of amphibolite up to 900℃ at1.0 Gpa : Effect of dehydration melting on Poisson's ratio of mid-to lower crustal rock2007

    • Author(s)
      Kojo, S.
    • Organizer
      American Geophysical Union Fall meeting
    • Place of Presentation
      San Francisco
    • Related Report
      2008 Final Research Report
  • [Presentation] 地殻マントル物質の弾性波速度測定 : 海洋地殻・モホの実体解明にむけて2007

    • Author(s)
      石川正弘
    • Organizer
      日本地質学会
    • Place of Presentation
      札幌
    • Related Report
      2008 Final Research Report
  • [Presentation] H2O流体が岩石の弾性波速度へ及ぼす影響2007

    • Author(s)
      石川正弘
    • Organizer
      日本地質学会
    • Place of Presentation
      札幌
    • Related Report
      2008 Final Research Report
  • [Presentation] 丹沢角閃岩・緑色片岩の高温高圧条件下における弾性波速度とポアソン比2007

    • Author(s)
      小城志保子
    • Organizer
      日本地質学会
    • Place of Presentation
      札幌
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] 丹沢深成岩類中の流体包有物に関する研究2007

    • Author(s)
      佐々木聡子
    • Organizer
      日本地質学会
    • Place of Presentation
      札幌
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] 丹沢山地に産する角閃石ハンレイ岩の高温高圧下における弾性波速度測定2007

    • Author(s)
      勝根郷
    • Organizer
      日本地質学会
    • Place of Presentation
      札幌
    • Related Report
      2008 Final Research Report
  • [Presentation] 高温高圧条件下における多結晶石英のP波速度に及ぼす水の影響2007

    • Author(s)
      石川正弘
    • Organizer
      本地球惑星科学連合大会
    • Place of Presentation
      幕張
    • Related Report
      2008 Final Research Report
  • [Presentation] 角閃岩の溶融が弾性波速度とポアソン比に与える影響2007

    • Author(s)
      小城志保子
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      幕張
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] 高温高圧条件下における多結晶石英のP波速度に及ぼす水の影響2007

    • Author(s)
      石川 正弘
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      幕張
    • Related Report
      2007 Annual Research Report
  • [Presentation] 高温高圧下における藍閃石片岩の地震波速度測定:沈み込む海洋地殻内の高ポアソン比領域の成因推定2007

    • Author(s)
      藤本善航
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      幕張
    • Related Report
      2007 Annual Research Report
  • [Presentation] H2O流体が岩石の弾性波棟度へ及ぼす影響2007

    • Author(s)
      石川 正弘
    • Organizer
      日本地質学会
    • Place of Presentation
      札幌
    • Related Report
      2007 Annual Research Report
  • [Presentation] 地殻マントル物質の弾性波速度測定:海洋地殻・モホの実体解明にむけて2007

    • Author(s)
      石川 正弘
    • Organizer
      日本地質学会
    • Place of Presentation
      札幌
    • Related Report
      2007 Annual Research Report
  • [Presentation] 丹沢山地に産する角閃石斑レイ岩の高温高圧下における弾性波速度測定2007

    • Author(s)
      勝根 郷
    • Organizer
      日本地質学会
    • Place of Presentation
      札幌
    • Related Report
      2007 Annual Research Report
  • [Presentation] Elastic wave velocities and Poisson's ratios of amphibolite up to 900℃ at 1.0 GPa: Effect of dehydration melting on Poisson'sratio pf mid-tolower crustal rock2007

    • Author(s)
      Kojo, S.
    • Organizer
      American Geophysical Union Fall meeting
    • Place of Presentation
      San Francisco
    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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