• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Determination of isotopic ratios, abundances and chemical species (chemical state) on platinum group elements and its application to the study of geochemical cycle and environmental change on the surface of the Earth

Research Project

Project/Area Number 15204051
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Geochemistry/Astrochemistry
Research InstitutionHIROSHIMA UNIVERSITY

Principal Investigator

SHIMIZU Hiroshi  Hiroshima University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (60090544)

Co-Investigator(Kenkyū-buntansha) TAKAHASHI Yoshio  Hiroshima University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (10304396)
SUZUKI Katsuhiko  Japan Marine Science and Technology Center, Institute for Frontier Research on Earth Evolution, Group Leader, 地球内部変動研究センター, グループリーダー (70251329)
Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥39,130,000 (Direct Cost: ¥30,100,000、Indirect Cost: ¥9,030,000)
Fiscal Year 2005: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2004: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2003: ¥32,240,000 (Direct Cost: ¥24,800,000、Indirect Cost: ¥7,440,000)
Keywordsplatinum group elements / Re-Os isotopic system / chemical species / XAFS / continental crust / iron meteorite / chert / mass extinction / XAFS / マルチトレーサ / 海水 / Os同位体比 / 海洋環境 / ペルム紀-三畳紀境界 / チャート / 白金鉱石 / EXAFS / 地殻物質
Research Abstract

Isotopic ratios, abundances and chemical species (chemical state) on platinum group elements were determined to study geochemical cycle and environmental change on the surface of the Earth.
1. Rhenium-osmium systematics on continental crust : The first Re-Os isotopic data were reported for the Taklimakan Desert sands and glacial moraines from the Kunlun Mountains. The Taklimakan Desert sands from various regions show surprisingly homogeneous Os isotopic data. It is supported that the Taklimakan Desert sands are derived from moraines and river sediments around the desert or from Tibetan soils and are homogenized by aeolian activity in the deserts. Our Re-Os data for the Taklimakan Desert sands were compared with those of loess from the Loess Plateuau, and it was concluded that the Re-Os data for the loess can be used and as proxy for the upper continental crust.
2. Speciation of osmium in an iron meteorite and a platinum ore specimen based on X-ray absorption fine-structure spectroscopy : … More We reported the first synchrotron radiation-based X-ray absorption fine structure (XAFS) spectra for Os in geo- and cosmo-chemical materials and showed that Os in the iron meteorite and the platinum ore chiefly exist as a metallic species. It is expected that further application of the XAFS technique to the Os speciation in natural samples will be help to elucidate Re/Os fractionation processes in the Re-Os isotopic system.
3. Evolution of Os isotope ratios in the ocean (Osmium isotope ratio at P-T boundary) : Osmium isotopic compositions deduced from cherts from the outer zone in the southwest Japan show the higher contribution of mantle material to seawater from early Permian to Triassic, suggesting the mass extinction event at P-T boundary is more likely caused by large igneous province activity.
4. Removal mechanism of Re and Os from seawater to sediments : In seawater-sediment system, it was shown that Re was removed from seawater only under reducing environment and Os was readily removed from seawater to sediments under various redox conditions. Less

Report

(4 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (34 results)

All 2006 2005 2004 2003 Other

All Journal Article (25 results) Book (2 results) Publications (7 results)

  • [Journal Article] Application of X-ray absorption near-edge structure (XANES) using bent crystal analyzer to the speciation of trace Os in iron meteorites2006

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

      Analytica Chimica Acta 558

      Pages: 332-336

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Determination of the Eu(II)/Eu(III) ratios in minerals by X-ray absorption near-edge structure (XANES) and its application to hydrothermal deposits2005

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

      Mineralogica Magazine 69

      Pages: 179-190

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Speciation of osmium in an iron meteorite and a platinum ore specimen based on X-ray absorption fine-structure spectroscopy2005

    • Author(s)
      N.Sakakibara et al.
    • Journal Title

      Geochemical Jounal 39

      Pages: 383-389

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Characterization of aeolian dust in east China and Japan from 2001 to 20032005

    • Author(s)
      Y.Kanai et al.
    • Journal Title

      Journal of the Meteorological Society of Japan 83A

      Pages: 73-106

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Determination of the Eu(II)/Eu(III) ratios in minerals by X-ray absorption near-edge structure (XANES) and its application to hydrothermal deposits2005

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

      Mineralogical Magazine 69

      Pages: 179-190

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Speciation of osmium in an iron meteorite and a platinum ore specimen based on X-ray absorption fine-structure spectroscopy2005

    • Author(s)
      N.Sakakibara et al.
    • Journal Title

      Geochemical Journal 39

      Pages: 383-389

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Characterization of Aeolian dust in east China and Japan from 2001 to 20032005

    • Author(s)
      Y.Kanai et al.
    • Journal Title

      Jurnal of Meteorological Society of Japan 83A

      Pages: 73-106

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Systematics of stability constants of fulvate complexes with rare earth ions2005

    • Author(s)
      Y.Yamamoto et al.
    • Journal Title

      Chemistry Letters 34

      Pages: 880-881

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Determination of the Eu(II)/Eu(III) ratios in minerals by X-ray absorption near-edge structure (XANES) and its application to hydrothermal deposits2005

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

      Mineralogical Magazine (in press)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Speciation of osmium in an iron meteorite and a platinum ore specimen based on X-ray absorption fine-structure spectroscopy2005

    • Author(s)
      N.Sakakibara et al.
    • Journal Title

      Geochemical Jouranl (in press)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Geochemical and isotopic studies of aeolian sediments in China2004

    • Author(s)
      M.Honda et al.
    • Journal Title

      Sedimentology 51

      Pages: 211-230

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Geochemical study of the sediments at Site 1179, ODP Leg 191 - Direct observation of the oxidation state of Mn and Ce -2004

    • Author(s)
      M.Fukukawa et al.
    • Journal Title

      Proceedings of Ocean Drilling Program, Sci. Results 191

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Speciation of Os in iron meteorite and PGE ores by SR-XAFS2004

    • Author(s)
      N.Sakakibara et al.
    • Journal Title

      Geochimica et Cosmochimica Acta 68

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] Geochemical and isotopic studies of Aeolian sediments in China2004

    • Author(s)
      M.Honda et al.
    • Journal Title

      Sedimentology 51

      Pages: 211-230

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] Geochemical study of the sediments at Site 1179, ODP Leg 191- direct observation of the oxidation states of Mn and Ce-2004

    • Author(s)
      M.Fukukawa et al.
    • Journal Title

      Proceedings of Ocean Drilling Program, Sci. Results 191SR-007

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Speciation of Os in iron meteorite and PGE ores2004

    • Author(s)
      N.Sakakibara et al.
    • Journal Title

      Geochimica et Cosmochimica Acta 68

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Geochemical study of the sediments at Site 1179, ODP Leg 191 - Direct observation of the oxidation state of Mn and Ce -2004

    • Author(s)
      M.Fukukawa et al.
    • Journal Title

      Proceedings of Ocean Drilling Program, Sci.Results 191

    • Related Report
      2004 Annual Research Report
  • [Journal Article] REE distribution pattern between water and montmorillonite and its relation to the sorbed species of REE2004

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

      Analytical Sciences 20

      Pages: 1301-1306

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Re-Os isotopic systematics of the Taklimakan Desert sands, moraines and river sediments around the Taklimakan Desert, and of Tibetan soils2003

    • Author(s)
      Y.Hattori et al.
    • Journal Title

      Geochimica et Cosmochimica Acta 67

      Pages: 1195-1205

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] The study on Re and Os removal from seawaterto sediments using multitracer technique and XANES2003

    • Author(s)
      M.Ito et al.
    • Journal Title

      Geochimica et Cosmochimica Acta 67

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Re-Os systematics in modern estuarine sediments from the Tama and Yasaka rivers, Japan2003

    • Author(s)
      G.Zheng et al.
    • Journal Title

      Geochimica et Cosmochimica Acta 67

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Observation of tetravalent cerium in zircon and its reduction by radiation effect2003

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

      Geophys. Res. Lett. 30

      Pages: 1137-1137

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Re-Os isotopic systematics of the Taklimakan Desert sands, moraines and river sediments around the Taklimakan Deserts, and of Tibetan soils2003

    • Author(s)
      Y.Hattori et al.
    • Journal Title

      Geochimica et Cosmochimica Acta 67

      Pages: 1195-1105

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] The study on Re and Os removal from seawater to sediments using multitracer technique and XANES2003

    • Author(s)
      M Ito et al.
    • Journal Title

      Geochimica et Cosmochimica Acta 67

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Observation of tetravalent cerium in zircon and its reduction by radiation effect2003

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

      Geophysical Research Letters 30

      Pages: 1137-1137

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Book] マントル・地殻の地球科学2003

    • Author(s)
      野津憲治, 清水 洋(共編)
    • Total Pages
      308
    • Publisher
      培風館
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Book] Geochemistry of mantle and crust2003

    • Author(s)
      K.Notsu, H.Shimizu
    • Total Pages
      308
    • Publisher
      Baifuukan
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Publications] Y.Hattori et al.: "Re-Os isotopic systematics of the Taklimakan Desert sands, moraines and river sediments around the Taklimakan Desert, and of Tibetan soils"Geochimica et Cosmochimica Acta. 67. 1203-1213 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Ito, et al.: "Multitracer study on the adsorption of Re and Os on sediments from artificial seawater"RIKEN Accelerator Progress Report. 36. 128 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Ito, et al.: "The study on Re and Os removal from seawaterto sediments using multitracer technique and XANES"Geochimica et Cosmochimica Acta. 67. A178 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] G.Zheng et al.: "Re-Os systematics in modern estuarine sediments from the Tama and Yasaka rivers, Japan"Geochimica et Cosmochimica Acta. 67. A582 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Takahashi et al.: "Observation of tetravalent cerium in zircon and its reduction by radiation effect"Geophys.Res.Lett.. 30. 1137 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Honda et al.: "Geochemical and isotopic studies of aeolian sediments in China"Sedimentology. (in press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 野津憲治, 清水洋 (共編): "マシトル・地殻の地球化学"培風館. 308 (2003)

    • Related Report
      2003 Annual Research Report

URL: 

Published: 2003-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi