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安定同位体をプローブとした新しい比較惑星科学の構築

Research Project

Project/Area Number 17204051
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

日高 洋  Hiroshima University, 大学院・理学研究科, 教授 (10208770)

Co-Investigator(Kenkyū-buntansha) 米田 成一  独立行政法人国立科学博物館, 理工学研究部, 主任研究官 (60210788)
安東 淳一  広島大学, 大学院・理学研究科, 助教 (50291480)
Project Period (FY) 2005 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥49,660,000 (Direct Cost: ¥38,200,000、Indirect Cost: ¥11,460,000)
Fiscal Year 2008: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2007: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2006: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2005: ¥35,100,000 (Direct Cost: ¥27,000,000、Indirect Cost: ¥8,100,000)
Keywords隕石 / 宇宙線 / 中性子捕獲 / 同位体 / 消滅核種 / サマリウム / ガドリニウム / セシウム / バリウム / 質量分析 / 天然原子炉 / ネオジム
Research Abstract

本年度は,前年度に引き続き,以下について行った。
1、gas-rich隕石の分析:多量にガス成分を含んでいる隕石(Kapoeta,Cook101,NWA801,SaU290)について,Sm,Gd同位体,希ガス同位体,の分析を行い,これらの宇宙線照射履歴の詳細について解析した。これらの隕石は銀河宇宙線の他に,低エネルギーの宇宙線による照射の影響を著しく受けている可能性が示唆された。
2.炭素質コンドライトのバリウム同位体分析:タイプの異なる6種類の炭素質コンドライト隙石(Orgueil,Mighei,Murray,Efremovka,Kainsaz,Karoonda)について酸による連続溶出実験を行い,得られた各々のフラクションのバリウム同位体分析を行った。特に,3種類のCM隕石から得られた同位体変動を総合的に解析し,原始太陽系の同位体不均一に影響を及ぼす要因としてs-過程,r-過程の原子核合成成分以外に消滅核種^<135>Csの存在の可能性を検証した。
3.原始惑星における水質変成:水質変成を激しく受けている形跡のある狭山隕石(CM2)について,その組織からコンドリュールを採取し,個々のコンドリュール粒子についてバリウム同位体測定を行った結果,^<135>Cs-^<135>Ba壊変系の著しい乱れを示すデータを得た。本研究結果は同位体化学的見地から水質変成の存在を示唆する有意義な証拠となり得た。

Report

(4 results)
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (48 results)

All 2008 2007 2006 2005

All Journal Article (30 results) (of which Peer Reviewed: 15 results) Presentation (17 results) Book (1 results)

  • [Journal Article] Ba isotopic signature for early differentiation between Cs and Ba in natural fission reactors2008

    • Author(s)
      H. Hidaka
    • Journal Title

      Geochimica et Costnochimica Acta 72

      Pages: 4123-4135

    • NAID

      120001092492

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Elemental distribution in apatite, titanite and zircon during hydrothermal alteration : Durability of2008

    • Author(s)
      K. Horie
    • Journal Title

      Physics and Chemistry of the Earth 33

      Pages: 962-968

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Geochemical behavior of radionuclides in highly alteredzircon above the Bangombe natural fission reactor, Gabon2008

    • Author(s)
      M. Kikuchi
    • Journal Title

      Physics and Chemistry of the Earth 33

      Pages: 978-982

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The oldest (ca. 2.51 Ga)rock in South Korea : U-Pb zircon age of a tonalitic migmatite, Daeijak Island, western Gyeonggi massif2008

    • Author(s)
      M. Cho
    • Journal Title

      Geoscience Journal 12

      Pages: 1-6

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Alteration conditions estimated from distribution of U, Pb and REE in apatite and titanite.2008

    • Author(s)
      K. Horie
    • Journal Title

      Physics and Chemistry of the Earth 33(In press)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Geochemical behavior of radionuclides in highly altered zircon above the Bangombe natural fission reactor, Gabon.2008

    • Author(s)
      M. Kikuchi
    • Journal Title

      Physics and Chemistry of the Earth 33(In press)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sm and Gd isotopic shifts of the Apollo 17 drill stem samples and their implication for regolith history.2007

    • Author(s)
      H. Hidaka
    • Journal Title

      Geochimica et Cosmochimica Acta 71

      Pages: 1074-1086

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Transport and selective uptake of radium into natural clay minerals.2007

    • Author(s)
      H. Hidaka
    • Journal Title

      Earth and Planetaly Science Letters 264

      Pages: 167-176

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Geochemical characteristics of an ancient nuclear reactor "Oklo".2007

    • Author(s)
      H. Hidaka
    • Journal Title

      Journal of Nuclear and Radiochemical Sciences 8

      Pages: 65-69

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The role of mass spectrometry in the Oklo-Bangombe natural reactors.2007

    • Author(s)
      J. R. DeLaeter
    • Journal Title

      Mass Spectromtery Reviews 26

      Pages: 683-712

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Redistribution of REE, Pb and U by supergene weathering studied from in-situ isotopic analyses of the Bangombe natural reactor, Gabon.2007

    • Author(s)
      M. Kikuchi
    • Journal Title

      Geochimica et Cosmochimica Acta 71

      Pages: 4716-4726

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Noble gas and oxygen isotope studies of aubrites: a clue to origin and histories.2007

    • Author(s)
      Y.Miura
    • Journal Title

      Geochimica et Cosmochimica Acta 71

      Pages: 251-270

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Zircon microvein in peralkaline granitic gneiss, westem Ethiopia: Origin, SHRIMP U-Pb geochronology and trace element investigations2007

    • Author(s)
      T.Kebede
    • Journal Title

      Chemical Geology 242

      Pages: 76-102

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Early Archean to middle Jurassic evolution of the Korean Peninsula and its correlation with Chinese crations: SHRIMP U-Pb zircon age constraints.2007

    • Author(s)
      H. Jeon
    • Journal Title

      Journal of Geology 115

      Pages: 525-539

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 〜3850 Ma tonalities in the Nuuk region, Greenland: Geochemistry and their reworking within an Eoarchaean gneiss complex.2007

    • Author(s)
      A. P. Nutman
    • Journal Title

      Contributions to Mineralogy and Petrology 154

      Pages: 385-408

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Noble gas and oxygen isotope studies of aubrites : a clue to origin and histories.2007

    • Author(s)
      Y.Miura
    • Journal Title

      Geochimica et Cosmochimica Acta 71

      Pages: 251-270

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Sm and Gd isotopic shifts of the Apollo 17 drill stem samples and their implication for regolith history2007

    • Author(s)
      H.Hidaka
    • Journal Title

      Geochimica et Cosmochimica Acta 71

      Pages: 1074-1086

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Geochemical characteristics of an ancient nuclear reactor "Oklo"2007

    • Author(s)
      H.Hidaka
    • Journal Title

      Journal of Nuclear and Radiochemistry Science (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] The role of mass spectrometry in the Oklo-Bangombe natural reactors2007

    • Author(s)
      J.R.DeLaeter
    • Journal Title

      Mass Spectrometry Reviews (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Regolith history of the aubritic meteorite parent body revealed by neutron capture effects on Sm and Gd isotopes.2006

    • Author(s)
      H.Hidaka
    • Journal Title

      Geochimica et Cosmochimica Acta 70

      Pages: 3449-3456

    • NAID

      120000882405

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Element distribution in zircon : Alteration and radiation-damage effects.2006

    • Author(s)
      K.Horie
    • Journal Title

      Physics and Chemistry of the Earth 31

      Pages: 587-592

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 743 +/- 17 Ma granite clast from Jurassic conglomerate, Kamiaso Mino Terrane, Japan : The case for South China Craton provenance (Korean Gyeonggi Block?)2006

    • Author(s)
      A.P.Nutman
    • Journal Title

      Journal of Asian Earth Science 26

      Pages: 99-104

    • Related Report
      2006 Annual Research Report
  • [Journal Article] SHRIMP U-Pb dating of detrital zircons in paragneiss from Oki-Dogo Island, western Japan.2006

    • Author(s)
      Y.Tsutsumi
    • Journal Title

      Journal of Mineralogical and Petrological Sciences 101

      Pages: 289-298

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 4.2 Ga zircon xenocryst in an Acasta Gneiss from northwestern Canada; Evidence for early continental crust2006

    • Author(s)
      T.Iizuka
    • Journal Title

      Geology 34

      Pages: 245-248

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Regolith history of the aubritic meteorite parent body revealed by neutron capture effects on Sm and Gd isotopes2006

    • Author(s)
      H.Hidaka
    • Journal Title

      Geochimica et Cosmochimica Acta 70(in press)

    • NAID

      120000882405

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Element distribution in zircon : Alteration and radiation-damage effects2006

    • Author(s)
      K.Horie
    • Journal Title

      Radiochimica Acta 94(in press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Geochemical fixation of rare earth elements into secondary minerals from sandstones beneath a natural fission reactor at Bangombe, Gabon2005

    • Author(s)
      H.Hidaka
    • Journal Title

      Geochimica et Cosmochimica Acta 69

      Pages: 685-694

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Technetium in cosmo- and geochemical fields2005

    • Author(s)
      H.Hidaka
    • Journal Title

      Journal of Nuclear and Radiochemical Sciences 6

      Pages: 249-252

    • NAID

      10025719652

    • Related Report
      2005 Annual Research Report
  • [Journal Article] アボガドロ数はどこまで正確に求められているか2005

    • Author(s)
      日高 洋
    • Journal Title

      ぶんせき 2

      Pages: 72-76

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 極めて長い半減期をもつ同位体の科学2005

    • Author(s)
      日高 洋
    • Journal Title

      化学と教育 53

      Pages: 140-141

    • Related Report
      2005 Annual Research Report
  • [Presentation] 宇宙線と惑星表層物質の相互作用が及ぼす同位体変動2008

    • Author(s)
      日高 洋
    • Organizer
      日本放射化学会2008年度年会
    • Place of Presentation
      広島
    • Year and Date
      2008-09-26
    • Related Report
      2008 Annual Research Report
  • [Presentation] 天然における核反応現象に基づく地球化学及び宇宙化学的研究2008

    • Author(s)
      日高 洋
    • Organizer
      日本放射化学会2008年度年会
    • Place of Presentation
      広島
    • Year and Date
      2008-09-26
    • Related Report
      2008 Annual Research Report
  • [Presentation] 二次イオン質量分析計による局所同位体測定からわかる放射性核種の化学的挙動2008

    • Author(s)
      日高 洋
    • Organizer
      日本放射化学会2008年度年会
    • Place of Presentation
      広島
    • Year and Date
      2008-09-25
    • Related Report
      2008 Annual Research Report
  • [Presentation] ナチュラルアナログとしてのオクロ天然原子炉の同位体研究2008

    • Author(s)
      日高 洋
    • Organizer
      日本地球化学会2008年度年会
    • Place of Presentation
      東京
    • Year and Date
      2008-09-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] Barium isotopic composition of chondrules in the Sayama meteorite2008

    • Author(s)
      H. Hidaka
    • Organizer
      71st Annual Meteoritical Society Meeting
    • Place of Presentation
      Matsue, Japan
    • Year and Date
      2008-07-31
    • Related Report
      2008 Annual Research Report
  • [Presentation] Isotopic shifts caused by nuclear reactions in natural fission reactors2008

    • Author(s)
      H. Hidaka
    • Organizer
      4th SHRIMP Workshop
    • Place of Presentation
      St. Petersburg, Russia
    • Year and Date
      2008-07-01
    • Related Report
      2008 Annual Research Report
  • [Presentation] バゴンベ天然原子炉上部におけるREE,Pb,Uの地球化学的挙動について2007

    • Author(s)
      菊池麻希子
    • Organizer
      2007年度質量分析学会同位体比部会
    • Place of Presentation
      北海道
    • Year and Date
      2007-10-24
    • Related Report
      2007 Annual Research Report
  • [Presentation] ジルコンのU-Pb年代分析に基づく宇奈月深成複合岩体の熱イベントの年代学的考察2007

    • Author(s)
      瀧口 愛
    • Organizer
      2007年度質量分析学会同位体比部会
    • Place of Presentation
      北海道
    • Year and Date
      2007-10-24
    • Related Report
      2007 Annual Research Report
  • [Presentation] 太陽風起源希ガスに富む隕石の宇宙線照射履歴2007

    • Author(s)
      日高 洋
    • Organizer
      日本地球化学会2007年度年会
    • Place of Presentation
      岡山
    • Year and Date
      2007-09-19
    • Related Report
      2007 Annual Research Report
  • [Presentation] ジルコンのU-Pb分析に基づく宇奈月帯深成複合岩の中圧変成作用の年代学的考察2007

    • Author(s)
      瀧口 愛
    • Organizer
      日本地球化学会2007年度年会
    • Place of Presentation
      岡山
    • Year and Date
      2007-09-19
    • Related Report
      2007 Annual Research Report
  • [Presentation] 著しく損傷を受けたジルコン内でのU,Pb,REEの再分配挙動について2007

    • Author(s)
      菊池麻希子
    • Organizer
      日本地球化学会2007年度年会
    • Place of Presentation
      岡山
    • Year and Date
      2007-09-19
    • Related Report
      2007 Annual Research Report
  • [Presentation] 二次イオン質量分析計を用いたウラン鉱物の局所U-Pb年代分析法の確立2007

    • Author(s)
      堀江憲路
    • Organizer
      日本地球化学会2007年度年会
    • Place of Presentation
      岡山
    • Year and Date
      2007-09-19
    • Related Report
      2007 Annual Research Report
  • [Presentation] Alteration conditions estimated from distribution of U, Pb and REE in apatite and titanite.2007

    • Author(s)
      K. Horie
    • Organizer
      MIGRATION2007
    • Place of Presentation
      Munich, Germany
    • Year and Date
      2007-08-28
    • Related Report
      2007 Annual Research Report
  • [Presentation] Geochemical behavior of radionuclides in highly altered zircon above the Bangombe natural fission reactor, Gabon.2007

    • Author(s)
      M. Kikuchi
    • Organizer
      MIGRATION2007
    • Place of Presentation
      Munich, Germany
    • Year and Date
      2007-08-28
    • Related Report
      2007 Annual Research Report
  • [Presentation] Barium isotopic study to search for fissiogenic cesium around the natural fission reactors at Oklo and Banombe2007

    • Author(s)
      H. Hidaka
    • Organizer
      MIGRATION2007
    • Place of Presentation
      Munich, Germany
    • Year and Date
      2007-08-27
    • Related Report
      2007 Annual Research Report
  • [Presentation] Development of in-situ U-Pb analysis of uranium oxides using an ion microprobe2007

    • Author(s)
      K. Horie
    • Organizer
      17th Annual V.M. Goldschmidt Conference
    • Place of Presentation
      Cologne, Germany
    • Year and Date
      2007-08-20
    • Related Report
      2007 Annual Research Report
  • [Presentation] 高感度高分解能イオンマイクロプローブによる微小鉱物の同位体測疋とその意義2007

    • Author(s)
      日高 洋
    • Organizer
      質量分析学会総合討論会
    • Place of Presentation
      広島
    • Year and Date
      2007-05-15
    • Related Report
      2007 Annual Research Report
  • [Book] 機器分析の事典(1.組成分析 23 安定同位体比質量分析計を分担執筆)2005

    • Author(s)
      日高 洋
    • Total Pages
      360
    • Publisher
      朝倉書店
    • Related Report
      2005 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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