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Elucidation of the mantle convection pattern in the shallow part of the subduction zone using natural samples

Research Project

Project/Area Number 16K17820
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Geology
Research InstitutionNagoya University

Principal Investigator

Kouketsu Yui  名古屋大学, 環境学研究科, 助教 (20726385)

Research Collaborator Simon Wallis  
Enami Masaki  
Ho Tsai Chin  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsスラブーマントル境界 / モホ面 / 剪断熱 / 剪断応力 / 三波川帯 / 炭質物ラマン温度計 / 変泥質岩 / 蛇紋岩 / 赤外分光分析 / スラブ-マントル境界 / 三波川変成帯 / 地質学 / 岩石・鉱物・鉱床学 / 地殻・マントル物質 / マントル対流
Outline of Final Research Achievements

Samples of metapelites and serpentinites in the Shirahata area, central Shikoku, SW Japan were collected and analyzed using Raman spectroscopy. The temperature structure near the slab-mantle boundary was verified using a Raman carbonaceous material geothermometer, and no significant temperature increase was confirmed. As compared with the thermal model calculation, it was concluded that the shear stress at the shallow slab-mantle boundary is several tens MPa or less. The low shear stress suggests that the degree of coupling at the slab-mantle boundary in the Sanbagawa belt is low, and the mantle convection is considered to be weak or stagnant.

Academic Significance and Societal Importance of the Research Achievements

日本は沈み込み帯に位置しており、地震や火山活動が活発な地域である。しかし、プレートが沈み込んだ先でどのような現象が起きているのかを直接可視することは、現在の技術では不可能である。本研究では、過去の沈み込み帯において地下約30km程度の深度まで沈み込んだ天然の変成岩を分析することで、沈み込み境界におけるカップリング度やマントル対流様式を検証し、現在の沈み込み帯浅部へ適用可能な直接的なデータを提示することで、プレート収束域における地質学的現象の発生機構解明に貢献した。

Report

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

    (29 results)

All 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (22 results) (of which Int'l Joint Research: 7 results,  Invited: 2 results) Remarks (1 results)

  • [Int'l Joint Research] 台湾国立東華大学(その他の国・地域 (台湾))

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Drastic effect of shearing on graphite microtexture: attention and application to Earth science2019

    • Author(s)
      Kouketsu Yui、Miyake Akira、Igami Yohei、Taguchi Tomoki、Kagi Hiroyuki、Enami Masaki
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 6 Issue: 1 Pages: 1-12

    • DOI

      10.1186/s40645-019-0271-4

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Discovery of unusual metamorphic temperatures in the Yuli belt, eastern Taiwan: New interpretation of data by Raman carbonaceous material geothermometry2019

    • Author(s)
      Kouketsu Yui、Tsai Chin-Ho、Enami Masaki
    • Journal Title

      Geology

      Volume: 00 Issue: 6 Pages: 522-526

    • DOI

      10.1130/g45934.1

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Coexisting different types of zoned garnet in kyanite-quartz eclogites from the Sanbagawa metamorphic belt: Evidence of deformation-induced lithological mixing during prograde metamorphism2018

    • Author(s)
      Enami Masaki、Kimura Jun-Ichi、Tsuboi Motohiro、Kouketsu Yui、Nagaya Takayoshi、Huang Shuaimin
    • Journal Title

      Island Arc

      Volume: 28 Issue: 1

    • DOI

      10.1111/iar.12274

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Metamorphic record of the Asemi‐gawa eclogite unit in the Sanbagawa belt, southwest Japan: Constraints from inclusions study in garnet porphyroblasts2018

    • Author(s)
      Taguchi Tomoki、Enami Masaki、Kouketsu Yui
    • Journal Title

      Journal of Metamorphic Geology

      Volume: 37 Issue: 2 Pages: 181-201

    • DOI

      10.1111/jmg.12456

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 三波川帯白髪山地域におけるスラブ-マントル境界の剪断熱の評価2017

    • Author(s)
      纐纈佑衣、貞本和志
    • Journal Title

      平成28年度深田研究助成

      Volume: 24 Pages: 41-49

    • Related Report
      2017 Research-status Report
  • [Presentation] ビックブルー海山から採取された蛇紋岩泥の赤外分光分析2019

    • Author(s)
      纐纈佑衣, Sakaguchi Ilona, 道林克禎
    • Organizer
      名古屋大学第1回岩鉱ワークショップ
    • Related Report
      2018 Annual Research Report
  • [Presentation] 石墨の研磨による剪断の影響評価2019

    • Author(s)
      纐纈佑衣, 榎並 正樹, 三宅 亮, 田口 知樹, 伊神 洋平, 鍵 裕之
    • Organizer
      変成岩などシンポジウム2019
    • Related Report
      2018 Annual Research Report
  • [Presentation] 研磨による剪断が石墨の結晶化度に与える影響2018

    • Author(s)
      纐纈佑衣, 榎並 正樹, 三宅 亮, 田口 知樹, 伊神 洋平, 鍵 裕之
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 東台湾Yuli帯の変堆積岩類中に含まれる幅広い結晶化度を示す炭質物2018

    • Author(s)
      纐纈佑衣, 葉 芝穎, 蔡 金河, 榎並 正樹
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A new discovery on spatial variation in metamorphic conditions of metasediments across the Yuli belt, eastern Taiwan: RSCM constraints and tectonic implications2018

    • Author(s)
      Chih-Ying Yeh, Chin-Ho Tsai, Yui Kouketsu, Masaki Enami, Chiao Liu
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Geology of the Kamabuseyama serpentinite unit in the Sanbagawa belt of the Kanto Mountains and implications for fluid flow along the base of the mantle wedge from 30-20 km depths2018

    • Author(s)
      Mari Yokota, Simon Richard Wallis, Yui Kouketsu
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Change in dip of subduction zone isotherms recorded in the Sanbagawa metamorphic belt2018

    • Author(s)
      ウォリス サイモン, 纐纈佑衣, 貞本 和志
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マントルウェッジ浅部における流体の流動様式の比較:三波川帯の例2018

    • Author(s)
      横田麻莉, ウォリス サイモン, 纐纈佑衣
    • Organizer
      日本地質学会第125年学術大会(2018札幌大会), (平成30年北海道胆振東部地震のため中止)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 広域変成岩の地表への露出過程に認められる静的な時期2018

    • Author(s)
      榎並正樹, 纐纈佑衣
    • Organizer
      日本地質学会第125年学術大会(2018札幌大会), (平成30年北海道胆振東部地震のため中止)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 紀伊半島中央部,三波川-四万十境界周辺の変形構造と被熱温度2018

    • Author(s)
      志村侑亮, 常盤哲也, 森 宏, 竹内 誠, 纐纈佑衣
    • Organizer
      日本地質学会第125年学術大会(2018札幌大会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 南海付加体堆積物中の低熟成度炭質物ラマン分光分析とビトリナイト反射率の比較2018

    • Author(s)
      福地里菜, 山口飛鳥, 纐纈佑衣, 山本由弦, 芦寿一郎
    • Organizer
      日本地質学会第125年学術大会(2018札幌大会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Comparison of infrared spectroscropy methods applied to serpentine minerals2018

    • Author(s)
      Sakaguchi Ilona, Kouketsu Yui, Michibayashi Katsuyoshi, Wallis Simon
    • Organizer
      日本地質学会第125年学術大会(2018札幌大会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] マントルウェッジ浅部における流体の流動様式の比較:三波川帯の例2018

    • Author(s)
      横田麻莉, ウォリス サイモン, 纐纈佑衣
    • Organizer
      日本地質学会第125年学術大会(2018つくば特別大会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 広域変成岩の地表への露出過程に認められる静的な時期2018

    • Author(s)
      榎並正樹、纐纈佑衣
    • Organizer
      日本地質学会第125年学術大会(2018つくば特別大会)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 顕微赤外分光測定におけるATR法を用いた鉱物中の水の検出可能性の検証2018

    • Author(s)
      纐纈佑衣, 柿畑優季, 清水健二, 道林克禎, Wallis Simon
    • Organizer
      日本鉱物科学会2018年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Static stage of exhumation of metamorphic rocks recorded in garnets: Evidence of EBSD-EPMA mapping2018

    • Author(s)
      Kouketsu Yui, Enami Masaki
    • Organizer
      2018 AGU Fall Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 浅部スラブ-マントル境界における剪断熱の評価:四国三波川帯白髪山地域の例2018

    • Author(s)
      纐纈佑衣、貞本和志
    • Organizer
      変成岩などシンポジウム2018
    • Related Report
      2017 Research-status Report
  • [Presentation] Water distribution in antigorite in the Shiragayama serpentinite -an FT-IR study2018

    • Author(s)
      坂口イローナ、纐纈佑衣、ウォリス サイモン
    • Organizer
      変成岩などシンポジウム2018
    • Related Report
      2017 Research-status Report
  • [Presentation] マントルウェッジの深さ30~20kmにおける流体の流動パターンの比較:三波川帯の例2018

    • Author(s)
      横田麻莉、ウォリス サイモン、纐纈佑衣、高木菜都子
    • Organizer
      変成岩などシンポジウム2018
    • Related Report
      2017 Research-status Report
  • [Presentation] Investigation of shear heating along a paleo subduction boundary using Raman carbonaceous material thermometry in the Sanbagawa belt2017

    • Author(s)
      Kazushi Sadamoto, Yui Kouketsu, Simon Wallis
    • Organizer
      Joint meeting of Symposium on metamorphism and metamoprhic rocks
    • Place of Presentation
      大沢温泉山水閣 (岩手県花巻市)
    • Year and Date
      2017-03-18
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] ラマン炭質物温度計を用いた三波川沈み込み帯の温度構造決定:四国中央部白髪山地域の例2017

    • Author(s)
      貞本和志、ウォリス サイモン、纐纈佑衣、森 宏、永冶方敬、石井和彦
    • Organizer
      日本地質学会第124年学術大会
    • Related Report
      2017 Research-status Report
  • [Presentation] アンチゴライト蛇紋岩の形成:関東山地の釜伏山岩体の例2017

    • Author(s)
      横田麻莉、ウォリス サイモン、纐纈佑衣、高木菜都子
    • Organizer
      日本地質学会第124年学術大会
    • Related Report
      2017 Research-status Report
  • [Remarks] 名古屋大学岩石鉱物学研究室webページ

    • URL

      http://www.eps.nagoya-u.ac.jp/~ganko/

    • Related Report
      2018 Annual Research Report

URL: 

Published: 2016-04-21   Modified: 2022-08-19  

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