Analyses of stable isotopes (Mg,Fe,Si) of synthesized chondrules from Knudsen cell technique

• Project/Area Number: 17K05721
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Geochemistry/Cosmochemistry
• Research Institution: National Institute of Polar Research
• Principal Investigator: Imae Naoya 国立極地研究所, 研究教育系, 助教 (60271037)
• Co-Investigator(Kenkyū-buntansha): 堀江 憲路 国立極地研究所, 研究教育系, 助教 (00571093) ; 磯部 博志 熊本大学, 大学院先端科学研究部(理), 教授 (80311869)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 隕石 / コンドリュール / マトリックス / 再現実験 / 同位体分別 / 原始太陽系 / コンドリュールの形成環境 / ダストに富む原始太陽系 / 始原物質の蒸発と凝縮 / かんらん石と輝石の挙動 / 同位体 / 2次イオン質量分析法

Outline of Final Research Achievements

Primitive materials of the solar system consist of chondrules and matrices. Their origins are the most important theme for clarifying the early solar system. We synthesized chondrules using the controlled furnace at the solar nebular pressure, temperature, and cooling rate under the reducing conditions. The analytical results of synthetic chondrules suggest that chondrules and matrices formed contemporaneously. Using the experimental results, the formation of chondrule and matrices has been modeled. The source may be shock heating produced from the flare activity of the early sun. We further planned the isotopic analyses of the synthesized chondrules in the present study to clarify the formation of chondrules. The analytical procedures for isotopic analyses was established, although the analyses for the syntheses and chondrules have not been carried out yet.

Academic Significance and Societal Importance of the Research Achievements

新たな実験装置を用いてコンドリュールの合成に成功した。この結果に基づき、新規なコンドリュール形成モデルを提出した。この内容は、国際誌に発表するとともに隕石学会の実験関連のワークショップや国際シンポジウムで講演を行い、国内外で積極的に成果を示した。同位体分析については引き続き今後の課題となったが、こうした研究に重要であることを示した。太陽系の起源に関する物質化学的研究の重要性を示したことは社会的意義があると考える。

Research Products

• [Journal Article] New measurement technique for characterizing small extraterrestrial materials by X-ray diffraction using the Gandolfi attachment (2020)
  • Author(s): Imae N., Kimura M.
  • Journal Title: Meteoritics & Planetary Science Volume: 55
  • Peer Reviewed
• [Journal Article] The effect of possible contamination from sample holders on samples returned by Hayabusa2 (2020)
  • Author(s): Shirai N., Karouji Y., Uesugi M., Hirahara K., Ito M., Tomioka N., Uesugi K., Yamaguchi A., Imae N., Ohigashi T., Yada T., Abe M.
  • Journal Title: Meteoritics & Planetary Science Volume: 55
  • Peer Reviewed
• [Journal Article] Development of a sample holder for synchrotron radiation-based computed tomography and diffraction analysis of extraterrestrial materials (2020)
  • Author(s): Uesugi Masayuki、Hirahara Kaori、Uesugi Kentaro、Takeuchi Akihisa、Karouji Yuzuru、Shirai Naoki、Ito Motoo、Tomioka Naotaka、Ohigashi Takuji、Yamaguchi Akira、Imae Naoya、Yada Toru、Abe Masanao
  • Journal Title: Review of Scientific Instruments Volume: 91 Issue: 3 Pages: 035107-035107
  • DOI: 10.1063/1.5122672
  • Peer Reviewed / Open Access
• [Journal Article] Primordial, thermal, and shock features of ordinary chondrites: Emulating bulk X-ray diffraction using in-plane rotation of polished thin sections (2019)
  • Author(s): N. Imae, M. Kimura, A. Yamaguchi, and H. Kojima
  • Journal Title: Meteoritics & Planetary Science Volume: 54 Issue: 4 Pages: 919-937
  • DOI: 10.1111/maps.13257
  • Peer Reviewed
• [Journal Article] A new mineralogical approach for CO3 chondrite characterization by X-ray diffraction: Identification of primordial phases and thermal history (2018)
  • Author(s): N. Imae and Y. Nakamuta
  • Journal Title: Meteoritics & Planetary Science Volume: 53 Issue: 2 Pages: 232-248
  • DOI: 10.1111/maps.12996
  • Peer Reviewed
• [Journal Article] Bulk Chemical Compositions of Antarctic Meteorites in the NIPR Collection (2018)
  • Author(s): M. Kimura, N. Imae, A. Yamaguchi, H. Haramura, and H. Kojima
  • Journal Title: Polar Science Volume: 15 Pages: 24-28
  • DOI: 10.1016/j.polar.2017.12.001
  • Peer Reviewed
• [Journal Article] An experimental study of chondrule formation from chondritic precursors via evaporation and condensation in Knudsen cell: Shock heating model of dust aggregates (2017)
  • Author(s): Imae Naoya、Isobe Hiroshi
  • Journal Title: Earth and Planetary Science Letters Volume: 473 Pages: 256-268
  • DOI: 10.1016/j.epsl.2017.05.040
  • Peer Reviewed
• [Journal Article] Evolution of mineralogy and organic matter during the early stages of aqueous activity recorded in Antarctic micrometeorites. (2017)
  • Author(s): Noguchi T., Yabuta H., Itoh S., Sakamoto N., Mitsunari T., Okubo A., Okazaki R., Nakamura T., Tachibana S., Terada K., Ebihara M., Imae N., Kimura M. and Nagahara H.
  • Journal Title: Geochim Cosmochim Acta Volume: 208 Pages: 119-144
  • DOI: 10.1016/j.gca.2017.03.034
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] An evaluation method of reflectance spectra to be obtained by Hayabusa2 Near-Infrared Spectrometer (NIRS3) based on laboratory measurements of carbonaceous chondrites (2017)
  • Author(s): Matsuoka Moe、Nakamura Tomoki、Osawa Takahito、Iwata Takahiro、Kitazato Kohei、Abe Masanao、Nakauchi Yusuke、Arai Takehiko、Komatsu Mutsumi、Hiroi Takahiro、Imae Naoya、Yamaguchi Akira、Kojima Hideyasu
  • Journal Title: Earth, Planets and Space Volume: 69 Issue: 1 Pages: 120-120
  • DOI: 10.1186/s40623-017-0705-4
  • NAID: 120006472642
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] NIRS3: the near infrared spectrometer on Hayabusa2 (2017)
  • Author(s): Iwata, T., Kitazato, K., Abe, M., Ohtake, M., Arai, T., Arai, T., Hirata, N., Hiroi, T., Honda, C., Imae, N., Komatsu, M., Matsunaga, T., Matsuoka, M., Matsuura, S., Nakamura, T., Nakato, A., Nakauchi, Y., Osawa, T., Senshu, H., Takagi, Y., Tsumura, K., Takato, N., Watanabe, S., Barucci, M. A., Palomba, E., Ozaki, M.
  • Journal Title: Space Science Reviews Volume: 印刷中 Issue: 1-4 Pages: 317-337
  • DOI: 10.1007/s11214-017-0341-0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Size distribution of Antarctic micrometeorites stored in surface snow near Dome Fuji Station (2019)
  • Author(s): Noguchi T., Takase M., Tominaga T., Yamaguchi A., Imae N.
  • Organizer: The Tenth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] In-depth analysis of the single grain from the C-type asteroid Ryugu utilizing linkage microanalytical instruments planed by Phase 2 curation “Team Kochi” (2019)
  • Author(s): Ito M., Tomioka N., Uesugi M., Uesugi K., Ohigashi T., Yamaguchi A., Imae N., Shirai N., Karouji Y., Yuzawa H., Yada T., Abe M.
  • Organizer: The Tenth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Cathodoluminescence imaging and X-ray diffraction analysis of shocked eucrites (2019)
  • Author(s): Kanemaru R., Imae N., Yamaguchi A., Nishido H.
  • Organizer: The Tenth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Petrologic subtypes of CM chondrites: Reinvestigation and proposal of subtypes 3.0 to 2.8 (2019)
  • Author(s): Kimura M., Imae N., Komatsu M., Yamaguchi A., Noguchi T.
  • Organizer: The Tenth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Lattice strain analyses for the L6 ordinary chondrites by the X-ray diffraction method (2019)
  • Author(s): Imae N.
  • Organizer: The Tenth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] An attempt to reproduce petrographic features of mesosiderites (2019)
  • Author(s): Sugiura N., Imae N., Arai T., Matsui T.
  • Organizer: The Tenth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Why do we find so many meteorites on the Nansen blue ice field and where else could we look? (2019)
  • Author(s): Zekollari H., Goderis S., Debaille V., van Ginneken M., Gattacceca J., Timothy Jull A. J., Lenaerts J., Yamaguchi A, Imae N., Huybrechts P., Tollenaar1 V., Lhermitte S. and Claeys P.
  • Organizer: The Tenth Symposium on Polar Science
  • Int'l Joint Research / Invited
• [Presentation] ユークライト隕石に産するシリカ多形の成因 (2019)
  • Author(s): 金丸 礼, 山口 亮, 今栄 直也, 西戸 裕嗣
  • Organizer: 日本鉱物科学会2019年年会
• [Presentation] X線回折法によるL6普通コンドライトの鉱物歪みの解析 (2019)
  • Author(s): 今栄直也
  • Organizer: 日本鉱物科学会2019年年会
• [Presentation] Early condensation history from two ultrarefractory inclusions (2019)
  • Author(s): Kimura M., Komatsu M., Ushikubo T., Imae N.
  • Organizer: Goldschmidt conference
  • Int'l Joint Research
• [Presentation] X-ray diffraction of stony meteorites using the Gandolfi attachment (2019)
  • Author(s): Imae N. and Kimura M.
  • Organizer: 82nd Meteoritical Society
  • Int'l Joint Research
• [Presentation] Shock metamorphism of the new fall ordinary chondrite Mangui in China (2019)
  • Author(s): Ji L., Hu S., Lin Y. T., Zhou Q., Xiao Y., Imae N., and Kimura M.
  • Organizer: 82nd Meteoritical Society
  • Int'l Joint Research
• [Presentation] Primitive CM-related chondrites: their characteristic features and classification (2019)
  • Author(s): Kimura M., Imae N., Yamaguchi A., Greenwood R.C., Komatsu M., Noguchi T.
  • Organizer: 82nd Meteoritical Society
  • Int'l Joint Research
• [Presentation] A New Carbonaceous Chondrite Grouplet, “CA” (2019)
  • Author(s): Kimura M., Imae N., Yamaguchi A., Greenwood R.C., Komatsu M.
  • Organizer: 82nd Meteoritical Society
  • Int'l Joint Research
• [Presentation] Japanese Antarctic meteoriets: Past, current, and future (2019)
  • Author(s): Yamaguchi A., Imae N., Kimura M., Noguchi T.
  • Organizer: 82nd Meteoritical Society
  • Int'l Joint Research
• [Presentation] Preparation for the analysis of Hayabusa2 returned samples (2019)
  • Author(s): Uesugi M., Uesugi K., Ito M., Tomioka N., Ohigaashi T., Yamaguchi A., Imae N., Karouji Y., Shirai N., Yada T., Abe M.
  • Organizer: 82nd Meteoritical Society
  • Int'l Joint Research
• [Presentation] Shock metamorphic degree of eucrites based on the textual and XRD analyses (2019)
  • Author(s): Kanemaru R., Imae N., Yamaguchi A., Nishido H.
  • Organizer: 82nd Meteoritical Society
  • Int'l Joint Research
• [Presentation] The Ryugu grain analysis: Approach by the phase 2 curation "Team Kochi" (2019)
  • Author(s): Ito M., Tomioka N., Uesugi M., Ohigashi T., Yamaguchi A., Imae N., Karouji Y., Shirai N., Yada T., Abe M.
  • Organizer: 82nd Meteoritical Society
  • Int'l Joint Research
• [Presentation] Evaluation of shock metamorphism of eucrites by X-ray diffraction analysis (2019)
  • Author(s): 金丸 礼, 今栄 直也, 山口 亮, 西戸 敏嗣
  • Organizer: 日本地球惑星科学連合2019
• [Presentation] Spectral and mineralogical properties of naturally-heated carbonaceous chondrites; implication to heating processes on the surface of hydrous asteroids (2019)
  • Author(s): 松岡 萌, 中村 智樹, 廣井 孝弘, 宮島 延吉, 今栄 直也, 山口 亮, 小島 秀康
  • Organizer: 日本地球惑星科学連合2019
• [Presentation] Analysis of the grain from the asteroid Ryugu proposed by the Phase 2 curation “Team KOCHI” (2019)
  • Author(s): 伊藤 元雄, 富岡 尚敬, 上椙 真之, 上杉 健太朗, 大東 琢治, 山口 亮, 今栄 直也, 唐牛 譲,白井 直樹, 矢田 達, 安部 正真
  • Organizer: 日本地球惑星科学連合2019
• [Presentation] ガンドルフィ・アタッチメントを用いたX線回折実験：微小地球外物質への適用 (2019)
  • Author(s): 今栄直也,木村眞
  • Organizer: 日本地球惑星科学連合2019
• [Presentation] GEMSを産する微隕石と惑星間塵に含まれるコンドルールと難揮発性包有物について (2019)
  • Author(s): 野口 高明, 大橋 憲昭, ブラッドレー ジョン, 中島 大輔, 中村 智樹, 木村 眞, 牛久保 孝行, 木多 紀子, 今栄 直也
  • Organizer: 日本地球惑星科学連合2019
• [Presentation] XRD analyses of basaltic and cumulate eucrites: Implication for shock metamorphism (2019)
  • Author(s): R. Kanemaru, N. Imae, A. Yamaguchi, and H. Nishido
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] Chondrule-like objects and a refractory inclusion in GEMS-bearing Antarctic micrometeorites and interplanetary dust particles (2019)
  • Author(s): T. Noguchi, N. Ohashi, J. P. Bradley, D. Nakashima, T. Nakamura, M. Kimura, T. Ushikubo, N. T. Kita, and N. Imae
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] Phase 2 curation “team Kochi” for HAYABUSA2 returned sample: In-depth analysis of a single grain utilizing linkage microanalytical instruments (2019)
  • Author(s): M. Ito, N. Tomioka, M. Uesugi, K. Uesugi, T. Ohigashi, A. Yamaguchi, N. Imae, Y. Karouji, N. Shirai, T. Yada and M. Abe
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] Infrared spectra of asteroid Ryugu: Comparison to laboratory-measured carbonaceous chondrites (2019)
  • Author(s): M. Matsuoka, et al.
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] Possible interpretations of visible/near-infrared spectra of asteroid Ryugu obtained by the Hayabusa2 mission (2019)
  • Author(s): T. Nakamura et al.
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] Bulk X-ray random diffraction patterns using polished thin sections of ordinary chondrites: primordial, thermal, and shock features (2019)
  • Author(s): N. Imae, M. Kimura, A. Yamaguchi, and H. Kojima
  • Organizer: Symposium on Antarctic meteorites 41/Hayabusa 2018
  • Int'l Joint Research
• [Presentation] A Perspective of Phase 2 Curation “Team Kochi” for Hayabusa2 Returned Sample: In-depth Analysis of a Single Grain Utilizing Linkage Microanalytical Instruments (2018)
  • Author(s): M. Ito, N. Tomioka, M. Uesugi, K. Uesugi, T. Ohigashi, A. Yamaguchi, N. Imae, Y. Karouji, N. Shirai, T. Yada and M. Abe
  • Organizer: Hayabusa 2018/Symposium on Antarctic meteorites 41
  • Int'l Joint Research
• [Presentation] A summary on recent petrographic investigation of a metal nodule in the Bondoc mesosiderite (2018)
  • Author(s): N. Sugiura, N. Imae, M. Kimura, T. Arai, and T. Matsui
  • Organizer: Symposium on Antarctic meteorites 41/Hayabusa 2018
  • Int'l Joint Research
• [Presentation] The effect of possible contamination from sample holders on samples returned by Hayabusa2 (2018)
  • Author(s): N. Shirai, Y. Karouji, K. Kumagai, M. Uesugi, K. Hirahara, M. Ito, N. Tomioka, K. Uesugi, A. Yamaguchi, N. Imae, T. Ohigashi, T. Yada, M. Abe
  • Organizer: Hayabusa 2018/Symposium on Antarctic meteorites 41
  • Int'l Joint Research
• [Presentation] Two unusual carbonaceous chondrites, Asuka-9003 and Asuka 09535: Preliminary results on their classification in comparison with Yamato-82094 (2018)
  • Author(s): Makoto Kimura, Akira Yamaguchi, and Naoya Imae
  • Organizer: Symposium on Antarctic meteorites 41/Hayabusa 2018
  • Int'l Joint Research
• [Presentation] 特異な難揮発性包有物の形成過程 (2018)
  • Author(s): 木村 眞、小松睦美、山口 亮、今栄直也
  • Organizer: 日本鉱物科学会年会
• [Presentation] 普通コンドライト薄片のバルクX線ランダム回折パターン：熱変成と衝撃変成作用 (2018)
  • Author(s): 今栄直也、木村眞、山口亮、小島秀康
  • Organizer: 日本鉱物科学会年会
• [Presentation] Reproduction of type I chondrules and the implications (2018)
  • Author(s): N. Imae, K. Horie, and H. Isobe
  • Organizer: Workshop "Experiments and modelling in investigation of extraterrestrial material” at 81th Annual Meeting of Meteoritical Society
  • Int'l Joint Research / Invited
• [Presentation] An Almahata Sitta EL3 clast: unique thermal history (2018)
  • Author(s): M. Kimura, M. K. Weisberg, A. Takaki, and N. Imae
  • Organizer: 81th Annual Meeting of Meteoritical Society
  • Int'l Joint Research
• [Presentation] Classification of the Hachi-oji meteorite and comparison with the Sone meteorite (2018)
  • Author(s): S. Yoneda, A. Yamaguchi, R. Okazaki, N. Imae, M. Kimura, R. Kataoka, K. Iwahashi, T. Mori, and M. Komatsu
  • Organizer: 81th Annual Meeting of Meteoritical Society
  • Int'l Joint Research
• [Presentation] Thermal and shock metamorphism for ordinary chondrites: A quantitative study using X-ray diffractions (2018)
  • Author(s): N. Imae, M. Kimura, A. Yamaguchi, and H. Kojima
  • Organizer: 81th Annual Meeting of Meteoritical Society
  • Int'l Joint Research
• [Presentation] The Hachioji meteorite: Petrological and noble gas study and classification (2018)
  • Author(s): Akira Yamaguchi, Shigekazu Yoneda, Ryuji Okazaki, Naoya Imae, Makoto Kimura, Ryuho Kataoka, Kiyomi Iwahashi, Toru Mori, Mutsumi Komatsu
  • Organizer: JpGU
• [Presentation] 「はやぶさ2」帰還試料分析に向けた、揮発性物質を含む地球外試料の多 機関連携による非汚染総合分析手法の開発 (2018)
  • Author(s): 上椙 真之、伊藤 元雄、富岡 尚敬、大東 琢治、上杉 健太朗、唐牛 譲、白井 直樹、山口 亮、今栄 直也、矢田 達、安部 正真
  • Organizer: JpGU
• [Presentation] 八王子隕石の希ガス・岩石学的研究と分類 (2018)
  • Author(s): 山口 亮、米田 成一、岡崎 隆司、今栄 直也、木村 眞、片岡 龍峰、岩橋 清美、森 融、小松 睦美
  • Organizer: JpGU
• [Presentation] An additional petrographic study of a metal nodule in the Bondoc mesosiderite (2018)
  • Author(s): N. Sugiura, N. Imae, M. Kimura, T. Arai, and T. Matsui
  • Organizer: JpGU
• [Presentation] Current status of developments by the collaboration team with ESCuC/JAXA for curation works and analysis of Hayabusa2 returned samples (2017)
  • Author(s): M. Uesugi, M. Ito, N. Tomioka, K. Uesugi, A. Yamaguchi, N. Imae, T. Ohigashi, Y. Karouji, T. Yada, and M. Abe
  • Organizer: HAYABUSA 2017
  • Int'l Joint Research
• [Presentation] The reproduction of type I chondrules and the implications (2017)
  • Author(s): N. Imae, K. Horie, and H. Isobe
  • Organizer: 8th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Classification of Antarctic meteorites using polished thick sections (2017)
  • Author(s): A. Yamaguchi, M. Kimura, and N. Imae
  • Organizer: 8th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Yamato-980115: CI chondrite experienced incomplete dehydration deduced from mineralogy and noble gas signatures (2017)
  • Author(s): K. Kikuchi, T. Nakamura, D. Nakashima, K. Nagao, N. Imae, A. Yamaguchi, and H. Kojima
  • Organizer: 8th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Spectral and mineralogical properties of dehydrated carbonaceous chondrites (2017)
  • Author(s): M. Matsuoka, T. Nakamura, N. Miyajima, N. Imae, A. Yamaguchi, and H. Kojima
  • Organizer: 8th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] 隕石の全岩化学組成 (2017)
  • Author(s): 木村眞、今栄直也、山口亮、原村寛、小島秀康
  • Organizer: 日本鉱物科学会年会
• [Presentation] CO3コンドライト薄片のバルクX線ランダム回折パターンからの知見：アモルファス相と熱史 (2017)
  • Author(s): 今栄直也、中牟田 義博
  • Organizer: 日本鉱物科学会年会
• [Presentation] Characterization of tiny fragments of stony meteorites by X-ray diffraction using Gandolfi attachment (2017)
  • Author(s): N. Imae, A. Yamaguchi, T. Ojima, and M. Kimura
  • Organizer: 80th Annual Meeting of the Meteoritical Scociety
  • Int'l Joint Research
• [Presentation] A New Mineralogical Approach of the CO3 Chondrites for the Identification of primordial phases and the thermal history (2017)
  • Author(s): N. Imae, Y. Nakamuta
  • Organizer: 80th Annual Meeting of the Meteoritical Society
  • Int'l Joint Research
• [Presentation] X線回折バルク分析法によるCO3コンドライトの鉱物学と熱史解析 (2017)
  • Author(s): 今栄 直也、中牟田 義博
  • Organizer: JpGU