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Utility of stable isotope system of tungsten as a paleocean redox proxy based on molecular structure

Research Project

Project/Area Number 23840058
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Geochemistry/Astrochemistry
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

KASHIWABARA Teruhiko  独立行政法人海洋研究開発機構, 地球内部ダイナミクス領域, ポストドクトラル研究員 (70611515)

Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsタングステン / X-ray Absorption Fine Structure (XAFS) / 蛍光分光 / 同位体分別 / 鉄マンガン酸化物 / XAFS / 同位体
Research Abstract

Adsorption on marine ferromanganese oxides is the important process controlling concentration and isotopic composition of tungsten (W) in modern oxic seawater. We focused on the enrichment and isotopic fractionation of W onto ferromanganese oxides by both structural analysis and isotope measurements. We revealed that W changes its molecular symmetry through inner-sphere complexation on the surface of both Fe (oxyhydr)oxides and Mn oxides, and also shows isotopic fractionation.

Report

(3 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • Research Products

    (14 results)

All 2013 2012 2011 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (10 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Tungsten species in natural ferromanganese oxides related to its different behavior in oxic ocean from molybdenum.2013

    • Author(s)
      T. Kashiwabara, Y. Takahashi, M. A. Marcus, T, Uruga, H. Tanida, Y. Terada, and A. Usui
    • Journal Title

      Geochim. Cosmochim. Acta

      Volume: 106 Pages: 364-378

    • DOI

      10.1016/j.gca.2012.12.026

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Prokaryotic abundance and community composition in a freshwater iron-rich microbial mat at circumneutral pH.2012

    • Author(s)
      Kato S.
    • Journal Title

      Geomicrobiology Journal.

      Volume: 29(10) Issue: 10 Pages: 896-905

    • DOI

      10.1080/01490451.2011.635763

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Molecular-scale mechanisms of distribution and isotopic fractionation of molybdenum between seawater and ferromanganese oxides2011

    • Author(s)
      T.Kashiwabara, Y.Takahashi, et al
    • Journal Title

      Geochim.Cosmochim.Acta

      Volume: 75 Issue: 19 Pages: 5762-5784

    • DOI

      10.1016/j.gca.2011.07.022

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] XAFS法及び分子軌道法を用いたクロム酸・モリブデン酸・タングステン酸の鉄水酸化物に対する反応性の比較2012

    • Author(s)
      有賀大輔,田中雅人,柏原輝彦,高橋嘉夫
    • Organizer
      2012年度日本地球化学第59回会年会
    • Place of Presentation
      九州大学
    • Year and Date
      2012-09-12
    • Related Report
      2012 Final Research Report
  • [Presentation] 鉄マンガン酸化物へのテルルの"異常濃集"の化学的要因2012

    • Author(s)
      大石泰子, 柏原輝彦, 杉山敏基, 坂口綾, 高橋嘉夫
    • Organizer
      2012年度日本地球化学第59回会年会
    • Place of Presentation
      九州大学
    • Year and Date
      2012-09-12
    • Related Report
      2012 Final Research Report
  • [Presentation] Mechanisms of isotopic fractionation of Mo on ferromanganese oxides based on the systematic analysis of surface complex structures2012

    • Author(s)
      T. Kashiwabara, Y. Takahashi
    • Organizer
      Goldschmidt Conference
    • Place of Presentation
      Montreal, Canada
    • Year and Date
      2012-06-26
    • Related Report
      2012 Final Research Report
  • [Presentation] 表面錯体構造の比較に基づく鉄マンガン酸化物への吸着におけるモリブデン同位体分別機構の解明2011

    • Author(s)
      柏原輝彦, 高橋嘉夫
    • Organizer
      2011年度日本地球化学第58回会年会
    • Place of Presentation
      北海道大学
    • Year and Date
      2011-09-16
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] Molecular-scale mechanism of Mo isotopic fractionation during adsorption on ferromanganese oxides2011

    • Author(s)
      T. Kashiwabara, Y. Takahashi
    • Organizer
      Goldschmidt Conference
    • Place of Presentation
      Prague Congress Centre, チェコ共和国
    • Year and Date
      2011-08-18
    • Related Report
      2012 Final Research Report
  • [Presentation] Molecular-scale mechanism of Mo isotopic fractionation during adsorption on ferromanganese oxides2011

    • Author(s)
      Teruhiko Kashiwabara, Yoshio Takahashi
    • Organizer
      Goldschmidt Conference
    • Place of Presentation
      Prague Congress Centre
    • Year and Date
      2011-08-18
    • Related Report
      2011 Annual Research Report
  • [Presentation] Speciation of Tungsten in Natural Ferromanganese Oxides Using Wavelength Dispersive XAFS2011

    • Author(s)
      T. Kashiwabara, Y. Takahashi
    • Organizer
      ICAS2011
    • Place of Presentation
      京都大学
    • Year and Date
      2011-05-25
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] 表面錯体構造の比較解析に基づく鉄マンガン酸化物への吸着に伴うモリブデンの同位体分別機構の解明2011

    • Author(s)
      柏原輝彦, 高橋嘉夫
    • Organizer
      地球惑星科学連合2011年大会
    • Place of Presentation
      幕張メッセ
    • Year and Date
      2011-05-23
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] 鉄マンガン酸化物へのテルルの“異常濃集”の化学的要因

    • Author(s)
      柏原輝彦
    • Organizer
      2012年度日本地球化学第59回会年会
    • Place of Presentation
      九州大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] XAFS法及び分子軌道法を用いたクロム酸・モリブデン酸・タングステン酸の鉄水酸化物に対する反応性の比較

    • Author(s)
      有賀大輔
    • Organizer
      2012年度日本地球化学第59回会年会
    • Place of Presentation
      九州大学
    • Related Report
      2012 Annual Research Report
  • [Patent(Industrial Property Rights)] 海底熱水鉱物資源の回収方法及び回収システム2012

    • Inventor(s)
      高井研、猿橋具和、宮崎純一、澤田郁郎、渋谷岳造、川口慎介、石橋純一郎、野崎達生、柏原輝彦、中村謙太郎、鈴木勝彦
    • Industrial Property Rights Holder
      独立行政法人海洋研究開発機構
    • Industrial Property Number
      2012-026705
    • Filing Date
      2012-02-09
    • Related Report
      2011 Annual Research Report

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Published: 2011-09-05   Modified: 2019-07-29  

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