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

Microprobe chemical state analysis of light elements in earth and planetary materials.

Research Project

Project/Area Number 03554028
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 鉱物学(含岩石・鉱床学)
Research InstitutionThe University of Tsukuba

Principal Investigator

NAKAI Izumi  The University of Tsukub Department of Chemistry Lecturer, 化学系, 講師 (90155648)

Co-Investigator(Kenkyū-buntansha) MIYAWAKAI Ritsuro  Government Industrial Research Institute, Nagoya Ceramic Technology Department R, 通産技官
NAKASHIMA Satoru  Tokyo University Faculty of Science Associate Professor, 理学部, 助教授 (80237255)
TSUCHIYAMA Akira  Osaka University College of General Education Associate Professor, 教養部, 助教授 (90180017)
Project Period (FY) 1991 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥9,000,000 (Direct Cost: ¥9,000,000)
Fiscal Year 1993: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1992: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1991: ¥6,000,000 (Direct Cost: ¥6,000,000)
KeywordsSynchrotron radiation / X-ray fluorescence analysis / chemical state analysis / meteorites / XAFS / biominerals / sulfur / light elements / 鉱物 / イメージング / 地球科学 / XANES / EXAFS / イオウ / リン / クロム / 花崗岩 / 半導体検出器 / 鉄
Research Abstract

After the investigation for three years, the following results have been obtained.
(1) Construction of the experimental system.
We have installed a new X-ray fluorescence detector at BL-8B of Photon Factory, High Energy Institute of Physics. The detector has three Si (Li) sindows suitable for light element analysis. We have optimized the system so as to study the chemical speciation of light elements in earth and planetary minerals. The instrumental system is now open to public use at the Photon Factory.
(2) Chemical state analysis of Ti, Cr and Fe in meteorites by XRF microprobe.
Chemical speciation of transition elements in meteorites was made using focused X-ray microbeam (minimum size ca.10 mum). Chemical state mapping based on the XANES and SIXES techniques produced isolated maps of Fe^<2+> and Fe^<3+> ions in a sample of pseudomorph of goethite after pyrite. Chemical forms of Cr and Ti were dominantly trivalent and tetravalent in the chondrules of in Allende, Krymka, Semarkona, and Y … More amato-691 meteorites, respectively, shile additional Cr^<2+> and Ti^<3+> componenets appear to be present in the chondrule of Yamato-691 meteorite.
(3) Two dimensional chemical state mapping of sulfur in geological samples.
Two dimensional analysis of a sedimentary rock containing sulfur was carried out and compositional image of sulfate and sulfide ion was successfully obtained by changing the excitation energy. The result visualized the oxidation process of the rock sample by weathering.
(4) Chemical state analysis of sulfur in sodalite group minerals.
S K-edge XANES spectra of the sodalite group minerals exhibited characteristic chemical shifts, as well as unique spectral shapes. The spectra of hauyne and helvite exhibited typical peaks of sulfate ions and sulfide ions, respectively. Although the spectrum of lazurite showed the peaks of sulfide and sulfate sulfur, the ideal formula of lzaurite is reported as Na6Ca2 (AI,6Si6O24) S2. The existence of sulfate ion was first found by the present study. Less

Report

(4 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • 1991 Annual Research Report
  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] I.Nakai: "Application of SR-XRF imaging and micro-XANES to meteorites,archaeological objects and animal tissues" Advances in X-ray Analysis. 35. 1307-1315 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] C.Numako: "XAFS studies of some transition elements highly accumulated in seashells" Jap.J.Appl.Phys.Suppl.32. 556-558 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Y.Terada: "Chemical state analysis of light elements in geological samples" Photon Factory Activity Report. 11. 184 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] C.Numako: "Characterization of kidney granules in marine bivalves by XAFS analysis" Bulletion de 1'Institut oceanographique,Monaco. 14. 105-113 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 寺田靖子: "地球科学試料中の硫黄のXAFA測定と2次元状態分析への応用" X線分析の進歩. 26. 209-216 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 沼田千弥: "ヒザラガイの歯に濃集した鉄のX線吸収微細構造法による状態分析" 分析化学. 44. 821-827 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 中井 泉(分担執筆): "分析化学ハンドブック" 朝倉書店, pp.532-537 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 中井 泉(分担執筆): "固体惑星物質科学の基礎的手法と応用" サイエンスハウス, pp.8-24 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] I.Nakai: "Application of SR-XRF imaging and micro-XANES to meteorites, archaeological objects and animal tissues" Advances in X-ray Analysis. 35. 1307-1315 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] C.Numako: "XAFS studies of some transition elements highly accumulated in seashells" Jap.J.Appl.Phys.Suppl.32. 5560-558 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Y.Terada: "Chemical state analysis of light elements in geological samples" Photon Factory Activity Report. 11. 184 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] C.Numako: "Characterization of kidney granules in marine bivalves by XAFS analysis" Bulletin de I'Institut oceanographique, Monaco. 14. 105-113 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Y.Terada: "XAFS study and two dimensional chemical state analysis of sulfur in geological samples (in Japanese)" Adv.in X-ray chemical analysis. 26. 209-216 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] C.Numako: "Chracterization of iron accumulated in the teeth of chiton by X-ray absorption fine structure (in Japanese)" Anal.Chem.Jpn.44. 821-827 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] I.Nakai: "XAFS studies of vanadium in the polychaete worm Pseudopotamilla Occelata,a new vanadium accumulator" Jap.J.Appl.Phys.Suppl.559-560 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] C.Numako: "XAFS studies of some transition elements highly accumulated in seashells" Jap.J.Appl.Phys.Suppl.556-558 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Ishii: "Discovery of a new vanadium accumulator,the polychaete worm Pseudopotamilla Occelata" Naturwissenschaften. 80. 268-270 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 中井 泉: "カマン・カレホユック遺跡出土鉄遺物の自然科学的研究(第2報)-放射光蛍光X線分析と顕微赤外分光による2次元非破壊状態分析" アナトリア考古学研究 中近東文化センター. 2. 15-24 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 武田弘編: "サイエンスハウス" 固体惑星物質科学の基礎的手法と応用, 229 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] I.Nakai: "Application of SR-XRF imaging and micro-XANES to meteorites,archaelolgical objects and animal tissues" Adrances in X-ray Analysis. 35. 1307-1315 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] I.Nakai: "Characterization of Light-elements in earth and planetary minerals by SR-XRF analysis(I) Dired enidonce of diralent chromium in a silicate plase of YAMATO 691 meteorite" Photon Factory Activity Report. 10. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] C.Numako: "XAFS studies of some tramsition elaments highly accumulated in seashells" Jap.J.Appl.Phys.(1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 中井 泉: "カマン・カレホコック遺跡出土鉄遺物の自然科学的研究(2)-放射光蛍光X線分析と顕微赤外分光による2次非破壊状態分析" アナトリア考古学研究. 2. 15-24 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] I.Nakai: "Chemical state imaging and trace element analysis of meteorites by X-ray fluorescence spectroscopy" Photon Factory Activity Report. 7. 153- (1989)

    • Related Report
      1991 Annual Research Report
  • [Publications] I.Nakai: "Chemical state imaging and trace element analysis of meteorites by X-ray fluorescence spectroscopy(II)" Photon Factory Activity Report. 8. 50- (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] 中井 泉: "放射光蛍光X線分析法による地球・惑星鉱物のキャラクタリゼ-ション" 鉱物学雑誌. 20. 147-154 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 中井 泉: "シンクロトロン放射光蛍光X線分析によるイメ-ジング" 金属. 44-49 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 中井 泉: "放射光蛍光X線分析によるイメ-ジングと状態分析" SR科学技術情報. 2. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] I.Nakai(分担): "Advances in X-ray Analysis" Plenum Press, (1992)

    • Related Report
      1991 Annual Research Report

URL: 

Published: 1991-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi