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Salinity of slab-derived fluid in jadeitites

Research Project

Project/Area Number 15K05352
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Petrology/Mineralogy/Economic geology
Research InstitutionKitakyushu Museum of Natural History and Human History

Principal Investigator

Shigeno Miki  北九州市立自然史・歴史博物館, 自然史課, 受託研究生 (90749558)

Co-Investigator(Kenkyū-buntansha) 森 康  北九州市立自然史・歴史博物館, 自然史課, 学芸員 (20359475)
Research Collaborator Nishiyama Tadao  
Kawamoto Tatsuhiko  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords流体包有物 / 流体包有物の塩濃度 / スラブ流体 / ヒスイ輝石岩 / 曹長岩 / 蛇紋岩メランジ / 沈み込み帯 / 石英ヒスイ輝石岩 / 岩石・鉱物・鉱床学
Outline of Final Research Achievements

Major components and salinity of fluid inclusions (liquid + gas bubble) in jadeite-quartz rocks, quartz-bearing jadeitite with albitite rind, albite-jadeitites from Japan were examined to find traces of slab-derived fluids in subduction-zone channels between the subducting slab and the mantle wedge.
The quartz-bearing jadeitite with albitite-rind developed along the slab-surface. Fluid inclusions in the both specimens showed low salinity (less than 5 wt% NaCl eq.). On the other hand, albite-jadeitites were formed by precipitation, when the slab-derived fluids went into the mantle wedge. Fluid inclusions in the albite-jadeitites showed higher salinity (more than 6 wt% NaCl eq.) and have small amount of methane. These results explain process of petrogenesis (origin, metamorphic condition and different appearance) of two types of jadeitite and two circulating paths of slab-derived fluids in subduction-zone channels.

Academic Significance and Societal Importance of the Research Achievements

地球規模の物質循環の中で、プレート収束域において過去にヒスイの生成や発達に関わる物質移動に重要な役割を果たした、海水起源とされる塩水の情報を捉えた。
プレート収束域の地殻-マントル境界付近において、過去に地下深く沈み込んだヒスイ(日本産)と、その鉱物中に数ミクロンの微小な包有物としてカプセルのように保存された塩水を調べた。塩水の内容物と塩濃度の違いから、ヒスイの2つの成因を共に説明する新たなモデルを考案した。さらに、成因の異なるヒスイに封じ込められて運ばれた、地下深部の水の2つの循環経路を提唱し、国石としても知られるようになったヒスイの成因と科学的意義を示した。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (17 results)

All 2018 2017 2016 2015

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results,  Acknowledgement Compliant: 1 results) Presentation (13 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results)

  • [Journal Article] Determination of reaction kinetics using grain size: An application for metamorphic zircon growth2018

    • Author(s)
      Miyazaki, K., Mori, Y., Nishiyama, T., Suga, K., Shigeno, M.
    • Journal Title

      Terra Nova

      Volume: 30 Issue: 2 Pages: 162-168

    • DOI

      10.1111/ter.12322

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Analysis of metamorphic reactions and mass transfer in open systems:2017

    • Author(s)
      西山忠男・森部陽介・森康・重野未来・湯口貴史
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 123 Issue: 9 Pages: 717-731

    • DOI

      10.5575/geosoc.2017.0021

    • NAID

      130006279048

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2017-09-15
    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Jadeitites and associated metasomatic rocks from serpentinite mélanges in the Nishisonogi unit, Nagasaki Metamorphic Complex, western Kyushu, Japan: a review2017

    • Author(s)
      Nishiyama, T., Mori, Y., Shigeno, M.
    • Journal Title

      Journal of Mineralogical and Petrological Sciences

      Volume: 112 Issue: 5 Pages: 197-216

    • DOI

      10.2465/jmps.170322

    • NAID

      130006201315

    • ISSN
      1345-6296, 1349-3825
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interplay of ireversible reactions and deformation: a case of hydrofractruing in the rodingite-serepentinite sysytem.2017

    • Author(s)
      Nishiyama, T., Yoshida-Shiosaki, C., Mori, Y. and Shigeno, M.
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 4:1 Issue: 1 Pages: 1-17

    • DOI

      10.1186/s40645-016-0115-4

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Mixing and reaction of rocks facilitate fluid flow along the forearc slab-mantle interface.2018

    • Author(s)
      Mori, Y., Shigeno, M., Nishiyama, T.
    • Organizer
      JpGU Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 炭質物ラマン地質温度計で推定した西彼杵変成岩類の変成温度構造2018

    • Author(s)
      重野未来・森康・宮崎一博・西山忠男
    • Organizer
      日本地質学会第125年学術大会(札幌大会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 沈み込みメランジュにおける蛇紋岩の脱水交代作用:深部スロー地震との関連2018

    • Author(s)
      森康・重野未来・西山忠男
    • Organizer
      日本地質学会第125年学術大会(札幌大会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Metasomatic dehydration of serpentinite in subduction melanges.2018

    • Author(s)
      Mori, Y., Shigeno, M., Noro, K., Nishiyama, N., Masuyama, H., Ujiie, K., Nishiyama, T.
    • Organizer
      International Joint Workshop on Slow Earthquakes 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高圧型変成作用の継続時間と速度定数:長崎変成コンプレックス西彼杵ユニットの例2018

    • Author(s)
      宮崎一博・菅賢志・森康・重野未来・岩野英樹・檀原徹・八木公史・大林秀行・西山忠男・平田岳史
    • Organizer
      日本地質学会第125年学術大会(つくば大会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Major components and salinity of slab-derived fluids: insights from fluid inclusions in jadeitites and jadeite-quartz rocks2017

    • Author(s)
      Shigeno, M., Mori, Y., Kawamoto, T., Nishiyama, T.
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fluid flow, fluid-rock interaction and slow earthquakes at the forearc mantle corner2017

    • Author(s)
      Mori, Y., Shigeno, M., Nishiyama, T.
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Deep subduction and the ultrahigh-pressure metamorphism of a Cretaceous accretionary prism, the Nishisonogi metamorphic rock, western Kyushu, Japan: Finding of diamond-graphite aggregates2017

    • Author(s)
      Nishiyama, T., Nishi, U., Yoshiasa, A., Ishimaru, S., Terauchi, M., Arai, S., Mori, Y., Shigeno, M., Ohfuji, H.
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 沈み込み帯メランジュにおける流体移動メカニズムと深部スロー地震の関連(予察)2017

    • Author(s)
      森康・重野未来・西山忠男
    • Organizer
      日本地質学会第124年学術大会
    • Related Report
      2017 Research-status Report
  • [Presentation] ヒスイ輝石岩類と曹長岩類の流体包有物からのスラブ流体へのアプローチ2016

    • Author(s)
      重野未来・森康・川本竜彦・西山忠男
    • Organizer
      日本鉱物科学会2016年年会
    • Place of Presentation
      金沢大学角間キャンパス(石川県金沢市)
    • Year and Date
      2016-09-23
    • Related Report
      2016 Research-status Report
  • [Presentation] サブダクションチャネルとマントルウェッジを通って海洋から火山へ塩水が循環する2016

    • Author(s)
      川本竜彦
    • Organizer
      日本鉱物科学会2016年年会
    • Place of Presentation
      金沢大学角間キャンパス(石川県金沢市)
    • Year and Date
      2016-09-23
    • Related Report
      2016 Research-status Report
  • [Presentation] 蛇紋岩メランジュにおける流体岩石相互作用と反応促進型透水性:深部スロー地震との関連2016

    • Author(s)
      森康・重野未来・西山忠男
    • Organizer
      日本地質学会第123年学術大会
    • Place of Presentation
      日本大学文理学部キャンパス(東京都世田谷区)
    • Year and Date
      2016-09-11
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] ヒスイ輝石岩の流体包有物の塩濃度~深さによる違いは見られるか?~.2015

    • Author(s)
      重野未来・森康・川本竜彦・西山忠男
    • Organizer
      日本鉱物科学会
    • Place of Presentation
      東京大学本郷キャンパス(東京都文京区)
    • Year and Date
      2015-09-25
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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