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pre-compaction exposure ages of CAIs in primitive meteorites: clarification of mechanisms of transportation and circulation of materials in the solar nebula

Research Project

Project/Area Number 23684046
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Geochemistry/Astrochemistry
Research InstitutionKyushu University

Principal Investigator

OKAZAKI Ryuji  九州大学, 理学(系)研究科(研究院), 助教 (40372750)

Project Period (FY) 2011-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥29,640,000 (Direct Cost: ¥22,800,000、Indirect Cost: ¥6,840,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥25,090,000 (Direct Cost: ¥19,300,000、Indirect Cost: ¥5,790,000)
Keywords難揮発性包有物 / 原始太陽系星雲 / 物質輸送 / 照射年代 / 浮遊年代 / コンドライト / CAI / 希ガス / 太陽系星雲 / 共鳴イオン化 / Kr-Kr年代 / I-Xe年代 / 星雲浮遊年代
Outline of Final Research Achievements

Five CAIs were found in polished sections prepared from the Allende CV chondrite. Their textural features and chemical compositions were determined by FESEM and EPMA, respectively. Stepped heating noble gas analyses were performed for two large CAIs.
One CAI has concordant exposure ages based on Ne and Kr stable isotopes (T21 and T83, respectively). An apparent age based on 81Kr is consistent with T21 and T83 within experimental uncertainties, suggesting that the pre-compaction exposure is shorter than 5 Ma. However, the further discussion is difficult due to the large experimental uncertainties. Another CAI shows excesses in 80Kr and 82 Kr that are derived from epi-thermal neutron capture of Br. In addition, 129Xe excess due to radiogenic 129I is observed. These excesses indicate this CAI is enriched in halogens.

Report

(5 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (48 results)

All 2015 2014 2013 2012 2011 Other

All Journal Article (20 results) (of which Peer Reviewed: 20 results,  Acknowledgement Compliant: 1 results) Presentation (25 results) (of which Invited: 2 results) Remarks (3 results)

  • [Journal Article] Mineralogy and noble-gas isotopes of micrometeorites collected from Antarctic snow.2015

    • Author(s)
      Okazaki, R., Noguchi, T., Tsujimoto, S., Tobimatsu, Y., Nakamura, T., Ebihara, M., Ito, S., Nagahara, H., Tachibana, S., Terada, K., Yabuta, H.
    • Journal Title

      Earth, Planets and Space

      Volume: 未定

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Sylvite and halite on particles recovered from 25143 Itokawa: A preliminary report.2014

    • Author(s)
      Noguchi, T., Kimura, M., Hashimoto, T., Konno, M., Nakamura, T., Zolensky, M. E., Tsuchiyama, A., Matsumoto, T., Matsuno, J., Okazaki, R., Uesugi, M., Karouji, Y., Yada, T., Ishibashi, Y., Shirai, K., Abe, M. and Okada, T.
    • Journal Title

      Meteoritics & Planetary Science

      Volume: 49 Issue: 7 Pages: 1305-1314

    • DOI

      10.1111/maps.12333

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of cutting method for small samples of Hayabusa and future sample return missions2014

    • Author(s)
      Uesugi M., Noguchi R., Matsumoto T., Matsuno J., Nagano T., Tsuchiyama A., Harada S., Yokoyama K., Yodo Y., Takeda N., Yada T., Yakame S., Karouji Y., Ishibashi Y., Abe M., Okada T., Fujimura A., Ebihara M., Kitajima F., Nagao K., Nakamura T., Naraoka H., Noguchi T., Okazaki R. and Yurimoto H.
    • Journal Title

      Meteoritics & Planetary Science

      Volume: 49 Issue: 7 Pages: 1186-1201

    • DOI

      10.1111/maps.12322

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mineral chemistry of MUSES-C Regio inferred from analysis of dust particles collected from the first-and second-touchdown sites on aster oid Itokawa2014

    • Author(s)
      Nakamura, T., Nakato, A., Ishida, H., Wakita, S., Noguchi, T., M. E. Zolensky., Tanaka, M., Kimura, M., Tsuchiyama A., Ogami, T., Hashimoto, T., Konno, M., Uesugi, M., Yada, T., Shirai, K., Fujimura, A., Okazaki, R., S. A. Sandford., Ishibashi, Y., Abe, M., et al.
    • Journal Title

      Meteoritics & Planetary Science

      Volume: 49 Issue: 2 Pages: 215-227

    • DOI

      10.1111/maps.12247

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Space weathered rims found on the surfaces of the Itokawa dust particles.2014

    • Author(s)
      T. Noguchi, M. Kimura, T. Hashimoto, M. Konno, T. Nakamura, M. E. Zolensky, R. Okazaki, M. Tanaka, A. Tsuchiyama, A. Nak ato, T. Ogami, H. Ishida, R. Sag ae, S. Tsujimoto, T. Matsumoto, J. Matsuno, A. Fujimura, M. Ab e, T. Yada, T. Mukai, M. Ueno, T. Okada, K. Shirai, Y. Ishibashi
    • Journal Title

      Meteor. & Planet. Sci

      Volume: 49 Issue: 2 Pages: 188-214

    • DOI

      10.1111/maps.12111

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of pressure and temperature on the silicon diffusivity of pyrope-rich garnet2014

    • Author(s)
      Akira Shimojuku, Tomoaki kubo, Takumi Kato, Takashi Yoshino, Masayuki Nishi, Tomoki Nakamura, Ryuji Okazaki, Yuki Kakazu
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 226巻 Pages: 28-38

    • DOI

      10.1016/j.pepi.2013.11.002

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of pressure and temperature on the silicon diffusivity of pyrope-rich garnet.2014

    • Author(s)
      Akira Shimojuku, Tomoaki Kubo, Takumi Kato, Takashi Yoshino, Masayuki Nishi, Tomoki Nakamura, Ryuji Okazaki, Yuki Kakazu
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 226 Pages: 28-38

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hayabusa return sample curation in the Planetary Material Sample Curation Facility of JAXA.2013

    • Author(s)
      T. Yada, A. Fujimura, M. Abe, T. Nakamura, T. Noguchi, R. Okazaki, K. Nagao, Y. Ishibashi, K. Shirai, M. E. Zolensky, S. Sandford, T. Okada, M. Uesugi, Y. Karouji, M. Ogawa, S. Yakame, M. Ueno, T. Mukai, M. Yoshikawa, and J. Kawaguchi
    • Journal Title

      Meteoritics & Planetary Science

      Volume: 49 Issue: 2 Pages: 135-153

    • DOI

      10.1111/maps.12027

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] はやぶさ試料の希ガス同位体組成にもとづく太陽風照射の履歴解読2013

    • Author(s)
      馬上謙一,松田伸太郎,岡崎隆司,野口高明
    • Journal Title

      遊星人

      Volume: 22 Pages: 86-93

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hayabusa return sample curation in the Planetary Material Sample Curation Facility of JAXA.2013

    • Author(s)
      T. Yada
    • Journal Title

      Meteoritics & Planetary Science

      Volume: accepted

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Space weathered rims found on the surfaces of the Itokawa dust particles.2013

    • Author(s)
      T. Noguchi
    • Journal Title

      Meteoritics & Planetary Science

      Volume: accepted

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Construction of a newly designed small-size mass spectrometer for helium isotope analysis: Toward the continuous monitoring of 3He/4He ratios in natural fluids.2012

    • Author(s)
      K. Bajo
    • Journal Title

      Mass Spectrometry

      Volume: A0009 Pages: 1-10

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Radar enabled recovery of Sutter's Mill, a unique carbonaceous chondrite regolith breccia.2012

    • Author(s)
      P. Jenniskens
    • Journal Title

      Science

      Volume: 338 Pages: 1583-1587

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preliminary organic compound analysis of microparticles returned from Asteroid 25143 Itokawa by the Hayabusa mission2012

    • Author(s)
      R.Okazaki, et al
    • Journal Title

      Geochemical Journal

      Volume: 46 Pages: 61-72

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Neutron activation analysis of a particle returned from asteroid Itokawa2011

    • Author(s)
      R.Okazaki, et al
    • Journal Title

      Science

      Volume: 333 Pages: 1119-1121

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Irradiation history of Itokawa regolith material deduced from noble gases in the Hayabusa samples2011

    • Author(s)
      R.Okazaki, et al
    • Journal Title

      Science

      Volume: 333 Pages: 1128-1131

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Itokawa dust particles : A direct link between S-type asteroids and ordinary chondrites2011

    • Author(s)
      R.Okazaki, et al
    • Journal Title

      Science

      Volume: 333 Pages: 1113-1116

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Incipient space weathering observed on the surface of Itokawa dust particles2011

    • Author(s)
      R.Okazaki, et al
    • Journal Title

      Science

      Volume: 333 Pages: 1121-1125

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three-dimensional structure of Hayabusa samples : Origin and evolution of Itokawa regolith2011

    • Author(s)
      R.Okazaki, et al
    • Journal Title

      Science

      Volume: 333 Pages: 1125-1128

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oxygen isotopic compositions of asteroidal materials returned from Itokawa by the Hayabusa mission2011

    • Author(s)
      R.Okazaki, et al
    • Journal Title

      Science

      Volume: 333 Pages: 1116-1119

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] 宇宙塵のAr-Ar分析にむけて2014

    • Author(s)
      岡崎隆司 ,関本俊,飛松優,平山友紀子
    • Organizer
      2014年度同位体比部会
    • Place of Presentation
      茨城県つくば市
    • Year and Date
      2014-11-26
    • Related Report
      2014 Annual Research Report
  • [Presentation] マイクログラムサンプルのINAA&Ar-Ar分析2014

    • Author(s)
      岡崎隆司
    • Organizer
      京大炉(KUR)を用いた放射化分析の成果と今後の展望
    • Place of Presentation
      京都大学原子炉実験所
    • Year and Date
      2014-11-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] sub-microgram地球外物質のための超高感度希ガス質量分析システム2013

    • Author(s)
      岡崎隆司
    • Organizer
      日本質量分析学会
    • Place of Presentation
      茨城
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 希ガス同位体に基づく惑星物質科学2013

    • Author(s)
      岡崎隆司
    • Organizer
      日本地球化学会
    • Place of Presentation
      茨城
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] A fine-grained polycrustalline micrometeorite: An asteroidal dust particle with a unique mineralogy2013

    • Author(s)
      T. Noguchi, S. Tsujimoto, R. Okazaki, T. Nakamura, M. Ebi-hara, S. Ito, H. Nagahara, S. Tachibana, K. Terada, H. Yabuta
    • Organizer
      Annual Meeting of the Meteoritical Society
    • Place of Presentation
      Edmonton (Canada)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Evidence of Minimum Aqueous Alteration in Rock-Ice Body: Update of Organic Chemistry and Mineralogy of Ultracarbonaceous Antarctic Micrometeorite2013

    • Author(s)
      H. Yabuta
    • Organizer
      The 44th Lunar and Planetary Science Conference
    • Place of Presentation
      Texas, USA
    • Related Report
      2012 Annual Research Report
  • [Presentation] Chemical Composition of Dust Samples (Micrometeorites) Recovered from Antarctic Snow2013

    • Author(s)
      M. Ebihara
    • Organizer
      The 44th Lunar and Planetary Science Conference
    • Place of Presentation
      Texas, USA
    • Related Report
      2012 Annual Research Report
  • [Presentation] Noble Gas Analysis of Two Hayabusa Samples as the First International A/O Investigation: A Progress Report2013

    • Author(s)
      K. Nagao
    • Organizer
      The 44th Lunar and Planetary Science Conference
    • Place of Presentation
      Texas, USA
    • Related Report
      2012 Annual Research Report
  • [Presentation] Mineral Ratios of Itokawa Samples ― Difference Between Two Rooms of a Hayabusa Sample Catcher2013

    • Author(s)
      T. Yada
    • Organizer
      The 44th Lunar and Planetary Science Conference
    • Place of Presentation
      Texas, USA
    • Related Report
      2012 Annual Research Report
  • [Presentation] Hayabusa-2 Sampler Team. The Sampling System of Hayabusa-2: Improvements from the Hayabusa Sampler2013

    • Author(s)
      S. Tachibana
    • Organizer
      The 44th Lunar and Planetary Science Conference
    • Place of Presentation
      Texas, USA
    • Related Report
      2012 Annual Research Report
  • [Presentation] Coexisting Nitrogen-Rich and Poor Organic Materials in Ultracarbonaceous Antarctic Micrometeorite2012

    • Author(s)
      H. Yabuta
    • Organizer
      The 75th Annual Meeting of the Meteoritical Society
    • Place of Presentation
      Cairns, Australia
    • Related Report
      2012 Annual Research Report
  • [Presentation] A Mineral Ratio of Itokawa Particles Recovered from the Hayabusa Sample Catcher2012

    • Author(s)
      T. Yada
    • Organizer
      The 75th Annual Meeting of the Meteoritical Society
    • Place of Presentation
      Cairns, Australia
    • Related Report
      2012 Annual Research Report
  • [Presentation] Asteroid Itokawa sample curation and distribution for initial analyses and international AO held in the planetary material sample curation facility of JAXA2012

    • Author(s)
      R.Okazaki, et al
    • Organizer
      The 43rd Lunar and Planetary Science Conference
    • Place of Presentation
      Texas, USA
    • Related Report
      2011 Annual Research Report
  • [Presentation] Finding of nitrogen-rich organic material in Antarctic ultracarbonaceous micrometeorite2012

    • Author(s)
      R.Okazaki, et al
    • Organizer
      The 43rd Lunar and Planetary Science Conference
    • Place of Presentation
      Texas, USA
    • Related Report
      2011 Annual Research Report
  • [Presentation] Space weathering products found on the surface of the Itokawa dust particles : A summary of the initial analysis2012

    • Author(s)
      R.Okazaki, et al
    • Organizer
      The 43rd Lunar and Planetary Science Conference
    • Place of Presentation
      Texas, USA
    • Related Report
      2011 Annual Research Report
  • [Presentation] The shock state of Itokawa samples2012

    • Author(s)
      R.Okazaki, et al
    • Organizer
      The 43rd Lunar and Planetary Science Conference
    • Place of Presentation
      Texas, USA
    • Related Report
      2011 Annual Research Report
  • [Presentation] Noble Gas Study of the KOREAMET Antarctic Meteorite Collections2011

    • Author(s)
      R.Okazaki, et al
    • Organizer
      The Isotope-ratio Mass Spectrometry Meeting
    • Place of Presentation
      Busan, Korea
    • Related Report
      2011 Annual Research Report
  • [Presentation] First direct evidence of asteroidal space weathering found on the surface of Itokawa particles2011

    • Author(s)
      R.Okazaki, et al
    • Organizer
      74th Annual Meeting of the Meteoritical Society
    • Place of Presentation
      London, UK
    • Related Report
      2011 Annual Research Report
  • [Presentation] Examination of organic compounds in the Hayabusa samples from the asteroid Itokawa2011

    • Author(s)
      R.Okazaki, et al
    • Organizer
      74th Annual Meeting of the Meteoritical Society
    • Place of Presentation
      London, UK
    • Related Report
      2011 Annual Research Report
  • [Presentation] Solar noble gas in Itokawa regolith materials returned by the Hayabusa mission2011

    • Author(s)
      R.Okazaki, et al
    • Organizer
      74th Annual Meeting of the Meteoritical Society
    • Place of Presentation
      London, UK
    • Related Report
      2011 Annual Research Report
  • [Presentation] Origin and evolution of Itokawa regolith particles based on three dimensional shapes and sizes of Hayabusa samples2011

    • Author(s)
      R.Okazaki, et al
    • Organizer
      74th Annual Meeting of the Meteoritical Society
    • Place of Presentation
      London, UK
    • Related Report
      2011 Annual Research Report
  • [Presentation] Oxygen and magnesium isotopic pompositions of Asteroid 25143 Itokawa returned by the Hayabusa mission2011

    • Author(s)
      R.Okazaki, et al
    • Organizer
      74th Annual Meeting of the Meteoritical Society
    • Place of Presentation
      London, UK
    • Related Report
      2011 Annual Research Report
  • [Presentation] A preliminary micro-spectroscopic analysis of the carbonaceous matter in the particles recovered by the Hayabusa mission2011

    • Author(s)
      R.Okazaki, et al
    • Organizer
      74th Annual Meeting of the Meteoritical Society
    • Place of Presentation
      London, UK
    • Related Report
      2011 Annual Research Report
  • [Presentation] Mineralogy and thermal history of Itotawa surface particles recovered by Hayabusa mission2011

    • Author(s)
      R.Okazaki, et al
    • Organizer
      74th Annual Meeting of the Meteoritical Society
    • Place of Presentation
      London, UK
    • Related Report
      2011 Annual Research Report
  • [Presentation] Hayabusa sample curation at planetary material sample curation facility in JAXA2011

    • Author(s)
      R.Okazaki, et al
    • Organizer
      74th Annual Meeting of the Meteoritical Society
    • Place of Presentation
      London, UK
    • Related Report
      2011 Annual Research Report
  • [Remarks] 惑星系形成進化学研究分野

    • URL

      http://jupiter.geo.kyushu-u.ac.jp/

    • Related Report
      2014 Annual Research Report
  • [Remarks] 九州大学大学院理学府地球惑星科学専攻惑星系形成進化学研究分野

    • URL

      http://jupiter.geo.kyhushu-u.ac.jp/index.html

    • Related Report
      2013 Annual Research Report
  • [Remarks] 九州大学 大学院理学府 地球惑星科学専攻 惑星系形成進化学研究分野

    • URL

      http://jupiter.geo.kyushu-u.ac.jp/index.html

    • Related Report
      2012 Annual Research Report

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Published: 2011-04-06   Modified: 2019-07-29  

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