Deformation of olivine under Earth's upper mantle conditions and its implications for directions of the upper mantle flow

• Project/Area Number: 23740393
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Petrology/Mineralogy/Science of ore deposit
• Research Institution: Ehime University
• Principal Investigator: OHUCHI Tomohiro 愛媛大学, 地球深部ダイナミクス研究センター, 助教 (60570504)
• Co-Investigator(Renkei-kenkyūsha): NISHIHARA Yu 愛媛大学, 地球深部ダイナミクス研究センター, 准教授 (10397036) ; KAWAZOE Takaaki ドイツ連邦バイロイト大学, バイエルン地球科学研究所, 助教 (40527610)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
• Keywords: 地球惑星物質 / 高圧地球科学 / マントルレオロジー / かんらん石 / 上部マントル / 流動方向 / 変形 / 水 / 地震波速度異方性 / 格子定向配列 / せん断変形

Research Abstract

Experimental studies have been conducted to investigate the relationship between the flow direction and seismic anisotropy in Earth’s upper mantle. Mantle flow was experimentally reproduced by using a simple-shear deformation technique under Earth’s upper mantle conditions, and then seismic properties of the samples were evaluated. Based on the experimental results by the present project, horizontal flow is expected to be the dominant flow style in the Earth’s upper mantle.

Research Products

• [Journal Article] Development of A-type olivine fabric in water-rich deep upper mantle. (2013)
  • Author(s): Ohuchi, T., Irifune, T.
  • Journal Title: Earth. Planet. Sci. Lett. Volume: 362 Pages: 20-30
  • Peer Reviewed
• [Journal Article] Seismic anisotropy in the mantle transition zone induced by shear deformation of wadsleyite. (2013)
  • Author(s): Kawazoe, T., Ohuchi, T., et al
  • Journal Title: Phys. Earth Planet. Inter. Volume: 216 Pages: 91-98
  • Peer Reviewed
• [Journal Article] Development of A-type olivine fabric in water-rich deep upper mantle (2013)
  • Author(s): Ohuchi T, Irifune T
  • Journal Title: Earth and Planetary Science Letters Volume: 362 Pages: 20-30
  • DOI: 10.1016/j.epsl.2012.11.029
  • Peer Reviewed
• [Journal Article] Seismic anisotropy in the mantle transition zone induced by shear deformation of wadsleyite (2013)
  • Author(s): Kawazoe, T., Ohuchi, T., 他
  • Journal Title: Phys. Earth Planet. Inter. Volume: 216 Pages: 91-98
  • DOI: 10.1016/j.epsl.2012.12.005
  • Peer Reviewed
• [Journal Article] Superplasticity in hydrous melt-bearing dunite: Implications for shear localization in Earth's upper mantle. (2012)
  • Author(s): Ohuchi, T., Nishihara, Y., et al
  • Journal Title: Earth Planet. Sci. Lett. Volume: 335-336 Pages: 59-71
  • Peer Reviewed
• [Journal Article] Change of olivine a-axis alignment induced by water: Origin of seismic anisotropy in subduction zones. (2012)
  • Author(s): Ohuchi, T., Kawazoe, T., Nishihara, Y. et. Al
  • Journal Title: Earth Planet. Sci. Lett. Volume: 317-318 Pages: 111-119
  • Peer Reviewed
• [Journal Article] Superplasticity in hydrous melt-bearing dunite: implications for shear localization in Earth's upper mantle (2012)
  • Author(s): Ohuchi, T., Nishihara, Y., Kawazoe, T., Spengler, D., Shiraishi, R., Suzuki, A., Kikegawa, T., Ohtani, E.
  • Journal Title: Earth and Planetary Science Letters Volume: 335-336 Pages: 59-71
  • DOI: 10.1016/j.epsl.2012.04.032
  • Peer Reviewed
• [Journal Article] Change of olivine a-axis alignment induced by water : origin of seismic anisotropy in subduction zones (2012)
  • Author(s): Ohuchi T, Kawazoe T, Nishihara Y, Irifune T
  • Journal Title: Earth and Planetary Science Letters Volume: 317-318 Pages: 111-119
  • DOI: 10.1016/j.epsl.2011.11.022
  • Peer Reviewed
• [Journal Article] In situ stress-strain measurements in a deformation-DIA apparatus at P-T conditions of the upper part of the mantle transition zone. (2011)
  • Author(s): Kawazoe, T., Nishihara, Y., Ohuchi, T., et al
  • Journal Title: Am. Mineral Volume: 96 Pages: 1665-1672
  • Peer Reviewed
• [Journal Article] High pressure and temperature fabric transitions in olivine and variations in upper mantle seismic anisotropy (2011)
  • Author(s): Ohuchi, T., Kawazoe, T., Nishiyama, N., et al
  • Journal Title: Earth Planet. Sci. Lett. Volume: 304 Pages: 55-63
  • Peer Reviewed
• [Journal Article] In situ stress-strain measurements in a deformation-DIA apparatus at P-T conditions of the upper part fo the mantle transition zone (2011)
  • Author(s): Kawazoe T, Nishihara Y, Ohuchi T, Nishiyama N, Higo Y, Funakoshi K, Irifune T
  • Journal Title: Am Mineral Volume: 96 Issue: 11-12 Pages: 1665-1672
  • DOI: 10.2138/am.2011.3818
  • Peer Reviewed
• [Journal Article] High pressure and temperature fabric transitions in olivine and variations in upper mantle seismic anisotropy (2011)
  • Author(s): Ohuchi T, Kawazoe T, Nishihara Y, Nishiyama N, Irifune T
  • Journal Title: Earth Planet Sci Lett Volume: 304 Issue: 1-2 Pages: 55-63
  • DOI: 10.1016/j.epsl.2011.01.015
  • Peer Reviewed
• [Presentation] 上部マントル最下部におけるかんらん石結晶方位定向配列 (2012)
  • Author(s): 大内智博、入舩徹男
  • Organizer: 日本高圧力学会第53回高圧討論会
  • Place of Presentation: 大阪
  • Year and Date: 2012-11-09
• [Presentation] 上部マントル深部におけるかんらん石結晶方位定向配列 (2012)
  • Author(s): 大内智博、入舩徹男
  • Organizer: 日本鉱物科学会2012年年会
  • Place of Presentation: 京都
  • Year and Date: 2012-09-21
• [Presentation] かんらん石の結晶方位定向配列と上部マントルの不均質構造 (2012)
  • Author(s): 大内智博
  • Organizer: 鉱物科学若手の会ショートコース
  • Place of Presentation: 京都
  • Year and Date: 2012-09-18
• [Presentation] Superplasticity in hydrous melt-bearing dunite: Implications for shear localization in Earth's upper mantle (2012)
  • Author(s): Ohuchi, T., Nishihara, Y., et al
  • Organizer: Joint 2012 COMPRESS Annual Meeting and High-Pressure Mineral Physics Seminar-8
  • Place of Presentation: アメリカ合衆国
  • Year and Date: 2012-07-09
• [Presentation] 含水メルトを含むダナイトの超塑性:上部マントルにおけるせん断集中 (2012)
  • Author(s): 大内智博、西原遊、ほか
  • Organizer: 日本地球惑星科学連合2012年度連合大会
  • Place of Presentation: 幕張
  • Year and Date: 2012-05-22
• [Presentation] アセノスフェア条件下におけるかんらん石の結晶方位定向配列における水の交換 (2011)
  • Author(s): 大内智博、川添貴章、西原遊、ほか
  • Organizer: 日本高圧力学会第52回高圧討論会
  • Place of Presentation: 那覇
• [Presentation] かんらん岩の流動強度における含水メルトの効果 (2011)
  • Author(s): 大内智博、西原遊、川添貴章、ほか
  • Organizer: 日本鉱物科学会 2011年年会
  • Place of Presentation: 水戸
• [Presentation] アセノスフェア条件下でのかんらん石の結晶方位定向配列における水の効果 (2011)
  • Author(s): 大内智博、川添貴章、西原遊、ほか
  • Organizer: 日本地球惑星科学連合2011年度連合大会
  • Place of Presentation: 幕張
• [Presentation] アセノスフェア条件下でのかんらん石の結晶方位定向配列における水の効果 (2011)
  • Author(s): 大内智博、川添貴章、西原遊、入舩徹男
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張
• [Presentation] かんらん岩の流動強度における含水メルトの効果 (2011)
  • Author(s): 大内智博、西原遊、川添貴章、ディルク・シュペングラー、白石令、鈴木昭夫、大谷栄治、亀卦川卓美
  • Organizer: 日本鉱物科学科2011年会
  • Place of Presentation: 水戸
• [Presentation] アセノスフェア条件下におけるかんらん石の結晶方位定向配列における水の効果 (2011)
  • Author(s): 大内智博、川添貴章、西原遊、入舩徹男
  • Organizer: 日本高圧力学会第52回高圧討論会
  • Place of Presentation: 那覇
• [Presentation] 上部マントル最下部におけるかんらん石結晶方位定向配列
  • Author(s): 大内智博
  • Organizer: 日本高圧力学会第53回高圧討論会
  • Place of Presentation: 大阪大学
• [Presentation] 上部マントル深部におけるかんらん石結晶方位定向配列
  • Author(s): 大内智博
  • Organizer: 日本鉱物科学会2012年年会
  • Place of Presentation: 京都大学
• [Presentation] かんらん石の結晶方位定向配列と上部マントルの不均質構造
  • Author(s): 大内智博
  • Organizer: 鉱物科学若手の会ショートコース
  • Place of Presentation: 京都大学
  • Invited
• [Presentation] Superplasticity in hydrous melt-bearing dunite: Implications for shear localization in Earth’s upper mantle.
  • Author(s): T. Ohuchi
  • Organizer: Joint 2012 COMPRESS Annual Meeting and High-Pressure Mineral Physics Seminar-8
  • Place of Presentation: アメリカ合衆国カルフォルニア州タホ市
• [Presentation] 含水メルトを含むダナイトの超塑性：上部マントルにおけるせん断集中
  • Author(s): 大内智博
  • Organizer: 日本地球惑星科学連合2012年度連合大会
  • Place of Presentation: 幕張