Experimental research on rheology and seismic wave velocity properties of partially molten lower crustal rocks

• Project/Area Number: 22740328
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Geology
• Research Institution: Tohoku University
• Principal Investigator: MUTO Jun 東北大学, 理学(系)研究科(研究院), 助教 (40545787)
• Project Period (FY): 2010-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 下部地殻 / レオロジー / 部分溶融 / 岩石変形 / 地震波速度 / メルト / 斜長石 / 地殻流体 / 岩石変形実験 / 固体圧変形試験機 / 地殻のレオロジー / 弾性波速度 / Griggs試験機 / 地震発生 / 格子定向配列 / テクトニクス

Research Abstract

In order to estimate the effect of melt and water on the rheological behavior of the lower crust, high pressure and temperature deformation experiments were conducted using Griggs type solid medium apparatus. Increases in the melt content decreases flow strengths under the presence of water. The flow stress decreases with increasing the water content added to the sample and decreasing strain rate. This indicates that the flow strength of anorthite aggregates is determined by the amount of water contents introduced into the aggregate. The water content required to cause weakening was consistent with the lower bound of water contents in the lower crust estimated by geophysical observations. The water contents left in the weakened samples measured after deformation experiments are consistent with naturally deformed feldspars. This indicates that the amount of water in the lower crust controls the rheological behavior of lower crustal rocks.

Research Products

• [Journal Article] Trench-parallel crustal anisotropy along the trench in the fore-arc region of Japan (2014)
  • Author(s): Takashi Iidaka, Jun Muto, Kazushige Obara, Toshihumi Igarashi, Bunichiro Shibazaki
  • Journal Title: Geophys. Res. Lett Volume: 41
  • Peer Reviewed
• [Journal Article] Trench-parallel crustal anisotropy along the trench in the fore-arc region of Japan (2014)
  • Author(s): Iidaka, T., J. Muto, K. Obara, T. Igarashi, and B. Shibazaki
  • Journal Title: Geophysical Research Letters Volume: 41 Issue: 6 Pages: 1957-1963
  • DOI: 10.1002/2013gl058359
  • Peer Reviewed
• [Journal Article] Self-affinities of Landforms and Folds in the Northeast Honshu Arc, Japan (2013)
  • Author(s): Kazuhei Kikuchi, Kazutoshi Abiko, Hiroyuki Nagahama, Hiroshi Kitazato, and Jun Muto
  • Journal Title: Acta Geophysica Volume: 61 Issue: 6 Pages: 1642-1658
  • DOI: 10.2478/s11600-013-0151-z
  • Peer Reviewed / Open Access
• [Journal Article] Two-dimensional viscosity structure of the northeastern Japan islands arc-trench system (2013)
  • Author(s): Muto, J., B. Shibazaki, Y. Ito, T. Iinuma, M. Ohzono, T. Matsumoto, and T. Okada
  • Journal Title: Geophysical Research Letters Volume: 40 Issue: 17 Pages: 4604-4608
  • DOI: 10.1002/grl.50906
  • Peer Reviewed
• [Journal Article] Rheological profile across the northeastern Japan lithosphere toward precise modeling of the 2011 Tohoku Oki Earthquake (2012)
  • Author(s): 武藤 潤, 大園 真子
  • Journal Title: The Journal of the Geological Society of Japan Volume: 118 Issue: 5 Pages: 323-333
  • DOI: 10.5575/geosoc.2012.0026
  • NAID: 130002530854
  • ISSN: 0016-7630, 1349-9963
  • Year and Date: 2012-05-15
  • Peer Reviewed
• [Journal Article] Geodetic evidence of viscoelastic relaxation after the 2008 Iwate-Miyagi Nairiku earthquake (2012)
  • Author(s): Ohzono, M., Y. Ohta, T. Iinuma, S. Miura, and J. Muto
  • Journal Title: Earth Planets and Space Volume: 64 Issue: 9 Pages: 759-764
  • DOI: 10.5047/eps.2012.04.001
  • NAID: 10031118077
  • Peer Reviewed
• [Journal Article] Amorphization of quartz by friction: Implication to silica-gellubrication of fault surfaces (2012)
  • Author(s): Nakamura, Y., Muto, J., Nagahama, H., Shimizu, I., Miura, T., Arakawa, I..
  • Journal Title: Geophysical Research Letter Volume: 39 Issue: 21 Pages: 53228-53228
  • DOI: 10.1029/2012gl053228
  • Peer Reviewed
• [Journal Article] 海洋モホ面でのレオロジー的不連続性 (2012)
  • Author(s): 片山郁夫、東真太郎、武藤潤
  • Journal Title: 月刊海洋 Volume: (未定)(印刷中)
  • NAID: 10029454530
• [Journal Article] Geodetic evidence of viscoelastic relaxation after the 2008 Iwate-Miyagi Nairiku earthquake (2012)
  • Author(s): Ohzono, M., Y.Ohta, T.Iinuma, S.Miura, J.Muto
  • Journal Title: Earth Planets and Space Volume: (未定)(印刷中)
  • Peer Reviewed
• [Journal Article] 東日本太平洋沖地震後の余効変動解析へ向けた東北日本弧レオロジー断面 (2012)
  • Author(s): 武藤潤、大園真子
  • Journal Title: 地質学雑誌(特集号) Volume: (未定)(印刷中)
  • NAID: 130002530854
  • Peer Reviewed
• [Journal Article] Plastic anisotropy and fabric evolution in sheared and recrystallized quartz single crystals (2011)
  • Author(s): Jun Muto, Greg Hirth, Renee Heilbronner & Jan Tullis
  • Journal Title: J. Geophys. Res Volume: B02206 Issue: B2
  • DOI: 10.1029/2010jb007891
  • Peer Reviewed
• [Journal Article] Electric potential changes associated with nucleation of stick-slip of simulated gouges (2011)
  • Author(s): Kumi Onuma, Jun Muto, Hiroyuki Nagahama & Kenshiro Otsuki
  • Journal Title: Tectonophysics Volume: 502 Issue: 3-4 Pages: 308-314
  • DOI: 10.1016/j.tecto.2011.01.018
  • Peer Reviewed
• [Journal Article] Rheological structure of northeastern Japan lithosphere based on geophysical observations and rock mechanics (2011)
  • Author(s): Jun Muto
  • Journal Title: Tectonophysics Volume: 503 Issue: 3-4 Pages: 201-206
  • DOI: 10.1016/j.tecto.2011.03.002
  • Peer Reviewed
• [Journal Article] Plastic anisotropy and fabric evolution in sheared and recrystallized quartz single crystals (2011)
  • Author(s): Muto, J., G.Hirth, R., Heilbronner, J.Tullis
  • Journal Title: Journal of Geophysical Research Volume: 116
  • Peer Reviewed
• [Journal Article] Skin Depth of Electromagnetic Wave through Fractal Crustal Rocks (2010)
  • Author(s): Kazutaka Takahara, Jun Muto & Hiroyuki Nagahama
  • Journal Title: IEEJ Transactions on Fundamentals and Materials Volume: 130 Issue: 3 Pages: 258-264
  • DOI: 10.1541/ieejfms.130.258
  • NAID: 10026225434
  • ISSN: 0385-4205, 1347-5533
  • Peer Reviewed
• [Presentation] Rheological structure of the NE Japan island arc-trench system and viscoelastic stress relaxation after the 2011 Tohoku Oki Earthquake (2013)
  • Author(s): Jun Muto, Bunichiro Shibazaki, Yoshihiro Ito, Takeshi Iinuma, Mako Ohzono, Takumi Matsumoto, Tomomi Okada
  • Organizer: International Symposium of Rock Mechanics
  • Place of Presentation: 仙台
  • Year and Date: 2013-08-23
• [Presentation] Effect of crustal fluids on plastic deformation of polycrystalline anorthite (2012)
  • Author(s): Jun Muto, Jun-ichi Fukuda and Hiroyuki Nagahama
  • Organizer: Achievements of G-COE Program for Earth and Planetary Dynamics and the Future Perspectives
  • Place of Presentation: 仙台
  • Year and Date: 2012-09-25
• [Presentation] Fabric evolution of single crystals of synthetic quartz sheared at low temperature (2012)
  • Author(s): Hideaki Kaneko, Jun Muto and Hiroyuki Nagahama
  • Organizer: Achievements of G-COE Program for Earth and Planetary Dynamics and the Future Perspectives
  • Place of Presentation: 仙台
  • Year and Date: 2012-09-25
• [Presentation] Rheological structure of the northeastern Japan toward precise modeling of post-seismic relaxation of the Mw 9.0 Tohoku earthquake (2011)
  • Author(s): Jun Muto and Mako Ohzono
  • Organizer: American Geophysical Union, Fall Meeting
  • Place of Presentation: サンフランシスコ, 米国
  • Year and Date: 2011-12-09
• [Presentation] Rheological structure of the northeastern Japan toward precise modeling of post-seismic relaxation of the Mw 9.0 Tohoku earthquake (2011)
  • Author(s): Muto, J., M.Ohzono
  • Organizer: AGU Fall Meeting 2012
  • Place of Presentation: サンフランシスコ(米国)
  • Year and Date: 2011-12-09
• [Presentation] Physical processes of quartz amorphization due to friction (2011)
  • Author(s): Yu Nakamura, Jun Muto, Hiroyuki Nagahama, Ichiko Shimizu, Takashi Miura and Ichiro Arakawa
  • Organizer: American Geophysical Union, Fall Meeting
  • Place of Presentation: サンフランシスコ, 米国
  • Year and Date: 2011-12-06
• [Presentation] Physical processes of quartz amorphization due to friction (2011)
  • Author(s): Nakamura, Y., J.Muto, H.Nagahama, T.Miura, I.Arakawa, I.Shimizu
  • Organizer: AGU Fall Meeting 2012
  • Place of Presentation: サンフランシスコ(米国)
  • Year and Date: 2011-12-06
• [Presentation] Pulverization of quartz single crystal and natural quartzite induced by possible super-shear rupture during stick-slips (2011)
  • Author(s): Nishikawa, O., J.Muto, K.Otsuki
  • Organizer: AGU Fall Meeting 2012
  • Place of Presentation: サンフランシスコ(米国)
  • Year and Date: 2011-12-06
• [Presentation] 東北地方太平洋沖地震の余効変動解析を目指した東北日本弧レオロジー断面 (2011)
  • Author(s): 大園真子・武藤潤
  • Organizer: 日本地震学会秋季大会
  • Place of Presentation: 東静岡
  • Year and Date: 2011-10-13
• [Presentation] 岩石のレオロジーから見る東北日本弧の変形 (2011)
  • Author(s): 武藤潤
  • Organizer: 日本鉱物科学会2011年年会合同学術大会
  • Place of Presentation: 茨城大学(招待講演)
  • Year and Date: 2011-09-15
• [Presentation] 海洋モホ面でのレオロジー的不連続性 (2011)
  • Author(s): 片山郁夫・東真太郎・武藤潤
  • Organizer: 日本鉱物科学会2011年年会合同学術大会
  • Place of Presentation: 茨城大学
  • Year and Date: 2011-09-09
• [Presentation] ピンオンディスク摩擦試験による石英非晶質化 (2011)
  • Author(s): 中村悠・武藤潤・長濱裕幸, 三浦崇・荒川一郎
  • Organizer: 日本地質学会学術大会
  • Place of Presentation: 茨城大学
  • Year and Date: 2011-09-09
• [Presentation] 東北日本弧のレオロジー断面:岩石力学実験と地球物理観測の統合 (2011)
  • Author(s): 武藤潤
  • Organizer: 日本地球惑星科学連合2011年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2011-05-26
• [Presentation] 断層深部延長におけるイントラフォリアル褶曲の発達 (2011)
  • Author(s): 金子英亮・武藤潤・長濱裕幸
  • Organizer: 日本地球惑星科学連合2011年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2011-05-26
• [Presentation] インド・Dhala衝突構造の衝撃石英の微細組織解析 (2011)
  • Author(s): 栗山祐太朗・中村敏博・武藤潤・長瀬敏郎・Jayanta K.Pati
  • Organizer: 日本地球惑星科学連合2011年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2011-05-26
• [Presentation] ピンオンディスク摩擦実験による石英の非晶質化:ラマン分光分析 (2011)
  • Author(s): 中村悠・武藤潤・長濱裕幸, 三浦崇・荒川一郎
  • Organizer: 日本地球惑星科学連合2011年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2011-05-23
• [Presentation] Rheological structure of Northern Honshu, Japan : Fault reactivation and post-seismic creep (2010)
  • Author(s): Muto, J.
  • Organizer: TheERI International Symposium on "Subduction systems : structure, seismicity and geodynamics"
  • Place of Presentation: 東京大学地震研究所
  • Year and Date: 2010-11-10
• [Presentation] Rheological structure of Northern Honshu, Japan : Fault reactivation and post-seismic creep (2010)
  • Author(s): Jun Muto
  • Organizer: The ERI International Symposium on "Subduction systems : structure, seismicity and geodynamics"
  • Place of Presentation: 東京
  • Year and Date: 2010-10-11
• [Presentation] 地殻岩石の電磁波スキンデプスとフラクタル特性 (2010)
  • Author(s): 武藤潤・高原一峰・長濱裕幸
  • Organizer: 日本地質学会2010年学術富山大会
  • Place of Presentation: 富山大
  • Year and Date: 2010-09-18
• [Presentation] 東北日本弧のレオロジープロファイル-最近の実験結果から (2010)
  • Author(s): 武藤潤
  • Organizer: 地殻のダイナミクスに関するワークショップ
  • Place of Presentation: 東京大学地震研究所
  • Year and Date: 2010-07-24
• [Presentation] Rheology of the island arc crust based on current understanding on rock deformation (2010)
  • Author(s): Jun Muto
  • Organizer: Tohoku University GCOE symposium "Dynamic Earth and Heterogeneous Structure"
  • Place of Presentation: 仙台
  • Year and Date: 2010-07-15
• [Presentation] Rheology of the island arc crust based on current understanding on rock deformation. (2010)
  • Author(s): Muto.J.
  • Organizer: Tohoku University GCOE symposium "Dynamic Earth and Heterogeneous Structure"
  • Place of Presentation: 仙台
  • Year and Date: 2010-07-14
• [Presentation] Pulverization of quartz single crystal induced by possible super-shear stick -slips. (2010)
  • Author(s): Nishikawa, O., J.Muto, K.Otuski
  • Organizer: Tohoku University GCOE symposium "Dynamic Earth and Heterogeneous Structure"
  • Place of Presentation: 仙台
  • Year and Date: 2010-07-13
• [Presentation] Electric voltage variation by nucleation of stick-slip of simulated gouges. (2010)
  • Author(s): Onuma, K., J.Muto, H.Nagahama, K.Otsuki
  • Organizer: Tohoku University GCOE symposium "Dynamic Earth and Heterogeneous Structure"
  • Place of Presentation: 仙台
  • Year and Date: 2010-07-13
• [Presentation] Heterogeneous waterdistribution and strain localization in polycrystalline anorthite by water-added deformation experiment.
  • Author(s): Fukuda, J., Muto, J., Nagahama, H.
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] Finite elementmodeling on stress field of subduction zones and island arcs during megathrust earthquake cycles.
  • Author(s): Muto, J., Shibazaki, B., Iidaka, T., Ohzono, M.
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] 人工アノーサイト多結晶体中の水の不均質分布と歪の局所化,
  • Author(s): 福田 惇一・武藤 潤・長濱 裕幸
  • Organizer: 日本地球惑星科学連合2013年大会
  • Place of Presentation: 幕張メッセ
• [Presentation] 東北日本弧不均質粘性構造を考慮した東北沖地震の2次元余効変動解析
  • Author(s): 武藤 潤・芝崎文一郎・大園 真子・矢部 康男・伊藤 喜宏・飯沼 卓史・松本拓己・岡田 知己
  • Organizer: 日本地球惑星科学連合2013年大会
  • Place of Presentation: 幕張メッセ
  • Invited
• [Presentation] 東北日本島弧-海溝系の不均質粘弾性モデルの構築
  • Author(s): 武藤 潤・芝崎文一郎
  • Organizer: 日本地球惑星科学連合2014年大会
  • Place of Presentation: パシフィコ横浜
  • Invited
• [Presentation] Effect of crustal fluids on plastic deformation of polycrystalline anorthite.
  • Author(s): Muto, J., Fukuda, J., Nagahama, H.
  • Organizer: Achievements of G-COE Program for Earth and Planetary Dynamics and the Future Perspectives.
  • Place of Presentation: 仙台市戦災復興記念館（宮城県）
• [Presentation] Fabric evolution of single crystals of synthetic quartz sheared at low temperature.
  • Author(s): Kaneko, H., Muto, J., Nagahama, H.
  • Organizer: Achievements of G-COE Program for Earth and Planetary Dynamics and the Future Perspectives.
  • Place of Presentation: 仙台市戦災復興記念館（宮城県）
• [Presentation] Microstructures and grain size distribution of pulverized fault rocks: Examples from San Andreas Fault and Arima-Takatsuki Tectonic Line.
  • Author(s): Nakatani, T., Muto, J., Nishikawa, O., Nagahama, H., Otsuki, K.
  • Organizer: Achievements of G-COE Program for Earth and Planetary Dynamics and the Future Perspectives.
  • Place of Presentation: 仙台市戦災復興記念館（宮城県）
• [Presentation] Microstructures and grain size distribution of pulverized fault rocks
  • Author(s): Muto, J., Nakatani ,T., Nishikawa, O., Nagahama, H., Otsuki, K.
  • Organizer: 10th International Workshop on Water Dynamics
  • Place of Presentation: 東北大学（宮城県）
• [Presentation] Experimental study about mechanical behavior of simulated fault gouge toward unstable slip
  • Author(s): Hirata, M., Muto, J., Nagahama, H., Otsuki, K.
  • Organizer: 10th International Workshop on Water Dynamics
  • Place of Presentation: 東北大学（宮城県）
• [Presentation] 3D X-ray CT measurement of fracture in rock mineral using fractal concepts
  • Author(s): Yamaki, J., Muto, J., Nagahama, H.
  • Organizer: 10th International Workshop on Water Dynamics
  • Place of Presentation: 東北大学（宮城県）
• [Presentation] ピンオンディスク摩擦試験による石英非晶質化
  • Author(s): 武藤潤, 中村悠, 長濱裕幸, 清水以知子, 三浦崇, 荒川一郎
  • Organizer: 2012年日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ（千葉県）
• [Presentation] 人工アノーサイト多結晶体の変形実験：水の効果
  • Author(s): 福田惇一, 武藤潤, 長濱裕幸
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ（千葉県）
• [Presentation] 東北日本沈み込み帯・島弧地殻のレオロジー構造と東北沖地震の 2 次元余効変動解析
  • Author(s): 武藤潤, 芝崎文一郎, 伊藤喜宏, 飯沼卓史, 大園真子, 松本拓己, 岡田知巳
  • Organizer: 日本地震学会
  • Place of Presentation: 函館市民会館（北海道）
• [Presentation] 東北日本弧不均質粘性構造を考慮した東北沖地震の2次元余効変動解析
  • Author(s): 武藤潤, 芝崎文一郎, 伊藤喜宏, 飯沼卓史, 大園真子, 松本拓己, 岡田知巳
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ（千葉県）
  • Invited
• [Presentation] 人工アノーサイト多結晶体中の水の不均質分布と歪の局所化
  • Author(s): 福田惇一, 武藤潤, 長濱裕幸
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ（千葉県）
• [Remarks]
  • URL: http://dges.es.tohoku.ac.jp/kozo/