| 1. |
J. Park, R. Okazaki, A. Yamaguchi, M. Inagaki, and A. J. Irving, 40Ar/39Ar analyses on Martian meteorites, Yamato 002712, Asuka 12325 and Northwest Africa 12542
, 55th Lunar and Planetary Science Conference, 2024.03. |
| 2. |
飛松優、岡崎隆司, LL3-5コンドライト NWA 7985の宇宙線照射履歴, 日本地球化学会, 2024.09. |
| 3. |
岡崎隆司、 米田成一、 山口亮 , 越谷、 小牧 、 習志野 、 八王子 、 曽根 隕石の希ガス同位体組成, 日本地球化学会, 2023.09. |
| 4. |
Nishiizumi, K.; Caffee, M. W.; Nagao, K.; Masarik, J.; Okazaki, R.; Yurimoto, H.; Nakamura, T.; Noguchi, T.; Naraoka, H.; Yabuta, H.; Sakamoto, K.; Tachibana, S.; Watanabe, S.; Tsuda, Y.; Hayabusa2-Initial-Analysis Volatile Team, Exposure Conditions of Samples Collected on Ryugu's Two Touchdown Sites Determined by Cosmogenic Nuclides 10Be and 26Al, 54th Lunar and Planetary Science Conference, 2023.03. |
| 5. |
Tachibana, S.; Yurimoto, H.; Nakamura, T.; Noguchi, T.; Okazaki, R.; Yabuta, H.; Naraoka, H.; Hayabusa2-Initial-Analysis Team, Initial Analysis Activity of Hayabusa2-Returned Samples from C-Type Near-Earth Asteroid (162173) Ryugu, 85th Annual Meeting of The Meteoritical Society, 2022.08. |
| 6. |
Meshik, A.; Pravdivtseva, O.; Okazaki, R.; Yurimoto, H.; Nakamura, T.; Noguchi, T.; Naraoka, H.; Yabuta, H.; Sakamoto, K.; Tachibana, S.; Watanabe, S.; Tsuda, Y.; Hayabusa2-Initial-Analysis Volatile Team, Noble Gas Isotopic Analyzes of the Asteroid Ryugu Samples: Initial Results of Multi-Step Pyrolysis, 85th Annual Meeting of The Meteoritical Society, 2022.08. |
| 7. |
Broadley, M. W.; Byrne, D. L.; Füri, E.; Marty, B.; Okazaki, R.; Yurimoto, H.; Nakamura, T.; Noguhi, T.; Naraoka, H.; Yabuta, H.; Sakamoto, K.; Tachibana, S.; Watanabe, S.; Tsuda, Y.; Hayabusa Initial Analysis Volatile Team, Investigating the Nitrogen-Noble Gas Relationship of Asteroid Ryugu and the Link to Other Carbonaceous Chondrites, 85th Annual Meeting of The Meteoritical Society, 2022.08. |
| 8. |
Nagao, K.; Okazaki, R.; Nishiizumi, K.; Caffee, M. W.; Masarik, J.; Yurimoto, H.; Nakamura, T.; Noguchi, T.; Naraoka, H.; Yabuta, H.; Sakamoto, K.; Tachibana, S.; Watanabe, S.; Tsuda, Y.; Hayabusa2-Initial-Analysis Volatile Team, Noble Gases of Eight Hayabusa2 Samples from the Asteroid Ryugu, 85th Annual Meeting of The Meteoritical Society, 2022.08. |
| 9. |
Hendrix, Amanda R.; Vilas, Faith; JaramilloCorrea, Camilo; Pearson, Neil; Zolensky, Mike E.; Domingue, Deborah L.; Clark, Roger Nelson; Allain, Jean Paul; Nakamuna, Tomoki; Matsuoka, Moe; Amano, Kana; Morita, Tomoyo; Kikuiri, Mizuha; Naraoka, Hiroshi; Sakamoto, Kanako; Kagawa, Eiichi; Yurimoto, Hisayoshi; Noguchi, Takaaki; Okazaki, Ryuji; Yabuta, Hikaru; Tachibana, Shogo; Watanabe, Seiichiro; Tsuda, Yuichi, UV-Visible Reflectance Spectra of Grains Returned from 162173 Ryugu Unexposed to Earth's Atmosphere, AGU Fall Meeting 2022, 2022.11. |
| 10. |
Sato, Masahiko; Kimura, Yuki; Tanaka, Satoshi; Hatakeyama, Tadahiro; Sugita, Seiji; Nakamuna, Tomoki; Tachibana, Shogo; Okuzumi, Satoshi; Watanabe, Seiichiro; Yurimoto, Hisayoshi; Noguchi, Takaaki; Okazaki, Ryuji; Yabuta, Hikaru; Naraoka, Hiroshi; Sakamoto, Kanako; Yada, Toru; Nishimura, Masahiro; Nakato, Aiko; Miyazaki, Akiko; Yogata, Kasumi; Abe, Masanao; Okada, Tatsuaki; Usui, Tomohiro; Yoshikawa, Makoto; Saiki, Takanao; Terui, Fuyuto; Nakazawa, Satoru; Tsuda, Yuichi, Rock-magnetic and paleointensity studies of returned samples from asteroid (162173) Ryugu, AGU Fall Meeting 2022, 2022.12. |
| 11. |
R. Okazaki, B. Marty, H. Busemann, K. Hashizume, J. Gilmour, A. Meshik, T. Yada, F. Kitajima, M.W. Broadley, D. Byrne, E. Füri, M.E.I. Riebe, D. Krietsch, C. Maden, A. Ishida, P. Clay, S. Crowther, L. Fawcett, T. Lawton, O. Pravdivseva, J. Park, K. Bajo, Y. Takano, K. Yamada, S. Kawagucci, Y. Matsui, M. Yamamoto, Y.N. Miura, K. Righter, S. Sakai, N. Iwata, N. Shirai, S. Sekimoto, M. Inagaki, M. Ebihara, R. Yokochi, K. Nishiizumi, K. Nagao, J.I. Lee, A. Kano, M.W. Caffee, R. Uemura, T. Nakamura, H. Naraoka, T. Noguchi, H. Yabuta, H. Yurimoto, S. Tachibana, H. Sawada, K. Sakamoto, S. Watanabe, and Y. Tsuda, Isotopic compositions of noble gases and nitrogen in the Ryugu samples returned by Hayabusa2, The 53rd Lunar and Planetary Science Conference, 2022.03, Introduction: In December 2014, the Hayabusa2 spacecraft launched to visit the C-type asteroid (162173) Ryugu to bring back surface and subsurface materials to the Earth. The spacecraft arrived at Ryugu on June 27, 2018, and subsequently carried out two touchdowns (TDs) and sample collections. [1]. The 1st TD was carried out and collected surface samples, while the 2nd TD was done to collect the impact ejecta near the artificial crater made by the Small Carry-on Impactor operation in April 2019 [1]. Samples collected during the 1st and 2nd TDs were stored in Chamber A and C of the Hayabusa2 sample catcher, respectively [2]. Our principal objective is to quantify the indigenous compositions of the Ryugu samples with as little terrestrial contamination as possible. Here we report the isotopic ratios and concentrations of noble gases and nitrogen in the Ryugu samples allocated to the Hayabusa2-initial-analysis-volatile team.
Samples and Experimental method: The samples both from Chamber A (A0105- series) and from Chamber C (C0106- series) were allocated to the volatile sub-team. These samples are typically 0.8 mm-sized individual grains, not clumps of powders. Each of the samples was pressed onto diamond disks and pelletized for the Fourier-Transform Infrared (FT-IR) spectroscopy and Field-Emission Scanning Electron Microscope (FESEM) observations prior to isotope analyses. To avoid contamination from the Earth’s atmosphere, we treated the samples under a pure nitrogen environment or in vacuum during the entire procedures from the sample preparation to the isotope analyses [3]. In addition to the pelletized samples, noble gases were analyzed in some fragments generated during the pelletization process. Noble gas analyses were performed at Kyushu U., ETH, U. Manchester, and Washington U., while noble gas and nitrogen isotopes were measured at CRPG-Nancy and Ibaraki U.
Results and Discussion: Twenty-four pelletized samples were measured for FT-IR and FESEM to characterize their petrology and mineralogy. The FESEM observation revealed that all of the Ryugu samples consist of a phyllosilicate-rich fine-grained matrix, with variable amounts of magnetite and Fe-sulfide, which are consistent with the other Ryugu samples allocated to different sub-teams [4, 5], and show similarities with CI chondrites. Reflectance spectra of our samples are also consistent with the previous reports on the Ryugu grains [e.g., 6].
The modal abundances of magnetite and Fe-sulfide are similar to those of typical CI lithology, which indicates that our samples are not magnetite or sulfide-rich CI clasts [7], CM, or CY chondrite materials [8].
Isotopic ratios of Ne in the Ryugu samples (Fig. 1) are similar to those in Orgueil and Ivuna [9], and can be explained by a mixing between solar wind (SW) [10], planetary-type Ne (P1 or Q gas: [11, 12]), and presolar HL Ne [12]. Based on the Ne isotopic ratios, we calculated cosmogenic 21Ne concentrations by weighted mean to be 5.0 and 4.6 ×10-9 cm3STP/g for the Ryugu-A (except for SW-rich A0105-15) and for the Ryugu-C samples, respectively. The measured 10Be concentrations [13] suggest shielding depths of 2–20 g/cm2 (relatively shallow) and one of 150 g/cm2 (deeper) for the Ryugu-A and C samples, respectively. Based on these measurements in conjunction with the production rates [14] for the CI chemistry [15], we obtained the cosmic ray exposure ages of 5.6 and 5.7 Myr for the Ryugu-A and C samples, respectively. For the SW-rich A0105-15, we assumed the shallowest shielding of 0–1 g/cm2 and obtained several hundreds of kyr using its cosmogenic 21Ne of 1.1×10-9 cm3STP/g. We concluded that most of the Ryugu materials resided at a subsurface layer of Ryugu beneath an uppermost layer of material that have been exposed to solar wind irradiation.
Isotopic ratios of nitrogen in our samples are depleted in 15N compared to those in the other sub-teams’ Ryugu samples [16, 17] and CI chondrites [e.g., 18] (Fig. 2). The nitrogen concentrations are also lower than those in CI chondrites and the other Ryugu samples. The two samples of A0105-07 and C0106-07 plot close to the Yamato-980115 dehydrated CI chondrite [19]. The variations observed in the δ15N and the nitrogen contents can be attributed to sample heterogeneity at a small scale of samples, and suggest that there are at least two different carrier phases of nitrogen in the Ryugu samples; one is nitrogen-depleted and has a lower δ15N value, while the other is nitrogen-enriched and has a higher δ15N value. A linear trend is observed among the Ryugu samples and CI chondrites, from which we can estimate the δ15N value to be ~70 ‰ for the 15N-rich end member. The similarity with the dehydrated CI chondrite Y-980115 suggests that some dehydration or devolatilization effect may be responsible for the depletion of the 15N-rich phase from our samples, although the mineralogy of the Ryugu samples does not show heavily metamorphosed features as Y-980115 does.
Acknowledgments: RO was supported by JSPS KAKENHI Grant Numbers JP19H01959 and JP20H05846. BM, EF, MWB and DB were supported by the European Research Council (PHOTONIS Advanced Grant # 695618 and VOLATILIS Starting Grant 715028) and by the Centre National d’Etudes Spatiales (CNES). Work by D.K., M.R. and H.B. has been carried out within the framework of the NCCR Planets and the Ambizione program supported by the Swiss NSF. JG, SC, TL and LF were funded by STFC grants numbers ST/R000751/1 and ST/V000675/1. PLC was supported by UKRI FLF grant number MR/S03465X/1. KH and AI were supported by JSPS KAKENHI Grant Number JP20H00190.
References: [1] Tsuda Y. et al. (2020) Acta Astronautica, 171, 42–54. [2] Okazaki R. et al. (2017) Space Sci. Rev. 208, 107-124. [3] Okazaki R. et al. (2021) Hayabusa Symposium 2021, S1-7. [4] Yokoyama T. et al. (2022) submitted to Science. [5] Nakamura T. et al. (2022) submitted to Science. [6] Yada T. et al. (2021) Nature Astronomy, doi.org/10.1038/s41550-021-01550-6. [7] Alfing J. et al. (2019) Geochemistry 79, 125532. [8] King A.J. et al. (2019) Geochemistry 79, 125531. [9] Schultz L. and Franke L. (2004) Meteorit. Planet. Sci. 39, 1889–1890. [10] Heber V.S. et al. (2009) Geochim. Cosmochim. Acta 73, 7414–7432. [11] Busemann H. et al. (2000) Meteorit. Planet. Sci. 35, 949–973. [12] Ott U. (2014) Chemie der Erde 74, 519–544. [13] Nishiizumi K. et al. (2021) Hayabusa Symposium 2021, S3-1. [14] Hohenberg C.M. et al. (1978) Proc. Lunar Planet. Sci. Conf. 9th, 2311–2344. [15] Lodders K. & Fegley B. (1998) The planetary scientist's companion. New York: Oxford Univ. Press. [16] Naraoka H. et al. (2022) submitted to Science. [17] Yabuta H. et al. (2022) submitted to Science. [18] Alexander C.M.O.D. et al. (2012) Science 337, 721–723. [19] Chan Q.H.S. et al. (2016) Earth Planet. Space 68, article id. 7.. |
| 12. |
Ryuji Okazaki, Bernard Marty, Henner Busemann, Yayoi N. Miura, Keita Yamada, Saburo Sakai, Ko Hashizume, Ken-ichi Bajo, Shun Sekimoto, Fumio Kitajima, Kevin Righter, Alex Meshik, Jamie Gilmour, Naoyoshi Iwata, Evelyn Füri, Sarah Crowther, Naoki Shirai, Mitsuru Ebihara, Yoshinori Takano, Akizumi Ishida, Reika Yokochi, Olga Pravdivseva, Jisun Park, Toru Yada, Kunihiko Nishiizumi, Keisuke Nagao, Jong Ik Lee, Michael Broadley, David Byrne, My Riebe, Patricia Clay, Akihiro Kano, Marc Caffee, Shinsuke Kawagucci, Yohei Matsui, Ryu Uemura, Makoto Inagaki, Daniela Krietsch, Colin Maden, Mizuki Yamamoto, Hisayoshi Yurimoto, Tomoki Nakamura, Takaaki Noguchi, Hiroshi Naraoka, Hikaru Yabuta, Kanako Sakamoto, Shogo Tachibana, Sei-ichiro Watanabe and Yuichi Tsuda, Initial Analysis of Volatile Components in the Hayabusa2 Samples, Hayabusa Symposium 2021, 2021.11. |
| 13. |
馬上謙一、 岡崎隆司, 超低ブランク希ガス質量分析装置を用いた微量希ガス同位体分析, 第69回質量分析学総合討論会2021, 2021.05. |
| 14. |
岩田尚能（山形大）、岡崎隆司（九大）、三浦弥生（東大）, 地球外物質のAr-Ar年代測定にむけて, 惑星物質科学のフロンティア, 2021.03, 微小量の地球外物質の年代測定にための開発を行った。. |
| 15. |
Ryuji Okazaki, Moeka Harada, Kasumi Yogata, In-situ K-Ar dating of rock samples by a combination of laser-induced breakdown spectroscopy (LIBS) and noble-gas mass spectrometry, 82nd Annual Meetings of the Meteoritical Society, 2019.07. |
| 16. |
岡崎隆司、関本俊, Trace elements analysis and Ar-Ar dating for microgram-scaled extraterrestrial samples, 日本地球惑星科学連合2019年大会, 2019.05. |
| 17. |
原田萌香、岡崎隆司, Willard (b) 角礫岩質HコンドライトおよびクラストのK-Ar年代、宇宙線照射年代, 日本地球化学会年会, 2018.09. |
| 18. |
岡崎隆司、与賀田佳澄, レーザープラズマ発光分光と希ガス局所分析の融合による岩石試料局所年代測定, 日本地球化学会年会, 2018.09, レーザーを用いた局所分析はICP-MSなど以外に希ガス分析でも利用されており、局所加熱で抽出される希ガス同位体を用いた特定の鉱物や包有物などの年代測定が可能となってきた。例えば、中性子照射した試料を用いて局所Ar-Ar年代測定が行われている。Ar-ArやI-Xe年代法のように親核種(KおよびI)を放射化により娘核種と同時に（同一の測定装置で）分析する場合以外は、親核種や標的元素の定量が必要である。しかし、レーザーアブレーションにより希ガスが抽出された領域そのものの元素分析は不可能であり、これまでは試料切片の表面観察・分析による情報で代用されてきた。本研究では、レーザーアブレーションの際に生じるプラズマ発光分光(Laser-Induced Breakdown Spectrometry, LIBS)による元素分析と希ガス同位体分析を組み合わせた分析システムの開発を行い、岩石試料の局所年代分析に適用した。
システムはNd:YAGパルスレーザー(1064 nm, pulse width ~8 nsec, beam diameter ~ 20 µm)、可視光分光器、希ガス質量分析計からなる。厚さ約100ミクロンのマダガスカル・Itlongay産orthoclaseおよび隕石試料に対して直径約20 µmの領域に0.1 uJのレーザーを10 Hzで1~2分間x10箇所（~0.5µg）に照射し、LIBS分析および希ガス質量分析を行った。希ガス抽出効率はorthoclaseのEPMAによるK濃度、K-Ar年代（435-461 Ma; Arnaud & Kelley, 1997; Wartho et al. 1999; Nägler &Villa, 2000）をもとに補正した。希ガス質量分析計の感度補正は既知量の地球大気により行った。LIBSのK感度はorthoclase (K2O=15.226 wt%)、albite (K2O=0.255 wt%)、wollastonite (K2O=0.466 wt%)のK (767 nm)と酸素(777.7nm)の輝線面積比をもとに線形近似により校正した。
これまでに普通コンドライト中のコンドリュールおよびマトリックスを分析し、K2O値が0.1wt%を超えるものについては約4.5GaのK-Ar年代を得ることができた。K濃度の低いものは輝線面積計算の不確かさが100%を超える。今後はLIBS検出器測定条件の見直し、バックグランド補正・関数フィッティングの精度向上により定量限界を改善していく。LIBSおよび希ガス質量分析計の検出限界を考慮すると、~100Maの年代を持つ地球岩石試料のhornblend, biotite, feldsparなどに対して、厚さ100µm、200x200 µmの領域での局所分析が可能である。これら複数鉱物年代を得ることができればアイソクロンK-Ar年代も可能になる。現在は更にK定量に加えて他の元素 (Mg, Si, Fe, Ca, Na)の定量を行い、隕石の宇宙線照射年代の精密測定（化学組成補正）を目指している。. |
| 19. |
岡崎隆司, はやぶさ２サンプラー開発とサンプル初期分析, 京都大学原子炉実験所専門研究会 「京大炉(KUR)を用いた放射化分析の成果と今後 の展望-2-」, 2017.01. |
| 20. |
岡崎 隆司, T. Noguchi, 他, イトカワ試料の形態的特徴と希ガス同位体組成との関係, 日本地球惑星科学連合2015年大会, 2015.05. |
| 21. |
岡崎 隆司, 地球外物質希ガス測定のための新しい分析方法とシステム, 日本地球惑星科学連合2015年大会, 2015.05. |
| 22. |
長勇一郎, 三浦弥生, 岡崎 隆司, 他, 惑星着陸探査におけるカリウム・アルゴン年代のその場計測: 月・火星でアルゴンを分析するための真空容器開発, 第63回質量分析討論会, 2015.06. |
| 23. |
長勇一郎, 芝崎 和夫, 梅山 未紗子, 大石 峻裕, 亀田 真吾, 三浦 弥生, 吉岡 和夫, 齋藤 義文, 横田 勝一郎, 笠原 慧, 吉光 徹雄, 岡崎 隆司, 他, 月惑星探査における年代その場計測を目指した開発, 日本地球惑星科学連合2015年大会, 2015.05. |
| 24. |
長勇一郎, 亀田真吾, 三浦 弥生, 齋藤義文, 横田勝一郎, 笠原慧, 岡崎 隆司, 他, 年代計測装置CHRONICLEによる火星表面年代のその場計測, 2015.01. |
| 25. |
長勇一郎, 三浦弥生, 亀田真吾, 岡崎 隆司, 他, 火星探査で岩石のK-Ar年代を測る, 質量分析学会同位体比部会, 2014.11. |
| 26. |
Yuichiro Cho, Shingo Kameda, Yayoi N. Miura, Yoshifumi Saito, Shoichiro Yokota, Satoshi Kasahara, Ryuji Okazaki, others, An In-situ Dating Instrument Package for a Future Mars Rover Mission, 30th International Symposium on Space Technology and Science, 2016.07. |
| 27. |
Yuichiro Cho, M. Horiuchi, K. Shibasaki, S. Kameda, K. Wada, T. Nakamura, T. Mikouchi, Y. Miura, Ryuji Okazaki, others, A laser-induced breakdown spectroscopy instrument for elemental analyses on Phobos, Phobos, Deimos, and Mars Workshop, 2016.02. |
| 28. |
岡崎 隆司, 関本俊, 飛松優, 平山友紀子, 宇宙塵のAr-Ar分析にむけて, 2014年度同位体比部会, 2014.11. |
| 29. |
岡崎 隆司, マイクログラムサンプルのINAA＆Ar-Ar分析, 京大炉(KUR)を用いた放射化分析の成果と今後の展望, 2014.11. |
| 30. |
Ryuji Okazaki, A fine-grained polycrustalline micrometeorite: An asteroidal dust particle with a unique mineralogy, The 76th Annual Meeting of the Meteoritical Society.. |
| 31. |
岡崎 隆司, 飛松優, 南極雪から回収された宇宙塵の希ガス同位体, 日本地球惑星科学連合. |
| 32. |
岡崎 隆司, 微隕石研究のための新しい分析スキームの開発と特異な鉱物学的特徴を持つ微隕石の発見, 日本地球惑星科学連合. |
| 33. |
岡崎 隆司, 南極雪中から回収された宇宙塵の化学組成, 日本地球惑星科学連合. |
| 34. |
岡崎 隆司, 希ガス同位体に基づく惑星物質科学, 日本地球化学会, 2013.09. |
| 35. |
岡崎 隆司, 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, 日本質量分析学会, 2013.09. |
| 36. |
Nagao, K., Okazaki Ryuji, Miura, Y., Osawa, T., Gilmour, J. D., Nishimura, Y., Noble Gas Analysis of Two Hayabusa Samples as the First International A/O Investigation: A Progress Report , The 44th Lunar and Planetary Science Conference, 2013.03. |
| 37. |
Yada, T., Abe, M., Okada, T., Uesugi, M., Karouji, Y., Ishibashi, Y., Yakame, S., Shirai, K., Nakamura, T., Noguchi, T., Okazaki Ryuji, Fujimoto, M., Yoshikawa, M., Mineral Ratios of Itokawa Samples — Difference Between Two Rooms of a Hayabusa Sample Catcher, The 44th Lunar and Planetary Science Conference, 2013.03. |
| 38. |
Tachibana, S., Sawada, H., Okazaki Ryuji, Takano, Y., Okamoto, C., Yano, H., Hayabusa-2 Sampler Team., Hayabusa-2 Sampler Team. The Sampling System of Hayabusa-2: Improvements from the Hayabusa Sampler, The 44th Lunar and Planetary Science Conference, 2013.03. |
| 39. |
Yabuta, H., Itoh, S., Noguchi, T., Sakamoto, N., Hashiguchi, M., Abe, K., Tsujimoto, S., Kilcoyne, A. L. D., Okubo, A., Okazaki Ryuji, Tachibana, S., Terada, K., Nakamura, T., Nagahara, H., Coexisting Nitrogen-Rich and Poor Organic Materials in Ultracarbonaceous Antarctic Micrometeorite, The 75th Annual Meeting of the Meteoritical Society., 2012.08. |
| 40. |
Yada, T., Abe, M., Okada, T., Uesugi, M., Karouji, Y., Ishibashi, Y., Yakame, S., Shirai, K.,, Nakamura, T., Noguchi, T., Okazaki Ryuji, Fujimura, A., A Mineral Ratio of Itokawa Particles Recovered from the Hayabusa Sample Catcher , The 75th Annual Meeting of the Meteoritical Society., 2012.08. |
| 41. |
Yabuta, H, Noguchi, T., Itoh, S., Sakamoto, N., Hashiguchi, M., Abe, K., Tsujimoto, S., Kilcoyne, A. L. D., Okubo, A., Okazaki Ryuji, Tachibana, S.,, Nakamura, T.,, Terada, K, Ebihara, M.,, Nagahara, H, Evidence of Minimum Aqueous Alteration in Rock-Ice Body: Update of Organic Chemistry and Mineralogy of Ultracarbonaceous Antarctic Micrometeorite, The 44th Lunar and Planetary Science Conference, 2012.03. |
| 42. |
Ebihara, M.,, Sekimoto, S., Shirai, N., Tsujimoto, S., Noguchi, T., Nakamura, T.,, Okazaki Ryuji, Itoh, S., Tachibana, S.,, Yabuta, H, Terada, K, Nagahara, H, Chemical Composition of Dust Samples (Micrometeorites) Recovered from Antarctic Snow, The 44th Lunar and Planetary Science Conference, 2012.03. |
| 43. |
S. Matsuda, R. Okazaki, K. Nagao, J. I. Lee, M. J. Lee, and I. S. Ahn, Noble Gas Study of the KOREAMET Antarctic Meteorite Collections,, The Isotope-ratio Mass Spectrometry Meeting, 2011.11. |
| 44. |
T. Noguchi, T. Nakamura, M. Kimura, M.E. Zolensky, M. Tanaka, T. Hashimoto, M. Konno, A. Nakatou, T. Ogami, A. Fujimura, M. Abe, T. Yada, T. Mukai, M. Ueno, T. Okada, K. Shirai, Y. Ishibashi, R. Okazaki, First direct evidence of asteroidal space weathering found on the surface of Itokawa particles, 74th Annual Meeting of the Meteoritical Society, 2011.08. |
| 45. |
H. Naraoka, H. Mita, K. Hamase, M. Mita, H, Yabuta, K. Saito, K. Fukushima, F. Kitajima, S.A. Sandford, T. Nakamura, T. Noguchi, R. Okazaki, K. Nagao, M. Ebihara, H. Yurimoto, A. Tsuchiyama, M. Abe, K. Shirai, M. Ueno, T. Yada, Y. Ishibashi, T. Okada, A. Fujimura, T. Mukai, M. Yoshikawa, J. Kawaguchi, Examination of organic compounds in the Hayabusa samples from the asteroid Itokawa, 74th Annual Meeting of the Meteoritical Society, 2011.08. |
| 46. |
K. Nagao, R. Okazaki, T. Nakamura, Y.N. Miura, T. Osawa. K. Bajo, S. Matsuda, M. Ebihara, T.R. Ireland, F. Kitajima, H. Naraoka, T. Noguchi, A. Tsuchiyama, M. Uesugi, H. Yurimoto, M.E. Zolensky, K. Shirai, M. Abe, T. Yada, Y. Ishibashi, A. Fujimura, T. Mukai. M. Ueno, T. Okada, M. Yoshikawa, J. Kawaguchi, Solar noble gas in Itokawa regolith materials returned by the Hayabusa mission, 74th Annual Meeting of the Meteoritical Society, 2011.08. |
| 47. |
A. Tsuchiyama, M. Uesugi, T. Matsushima, T. Michikami, T. Kadono, T. Nakamura, K. Uesugi, T. Nakano, S.A. Sandford, R. Noguchi, T. Matsumoto, J. Matsuno, T. Nagano, Y. Imai, A. Takeuchi, Y. Suzuki, T. Ogami, J. Katagiri, M. Ebihara, T.R. Ireland, F. Kitajima, K. Nagao, H. Naraoka. T. Noguchi, R. Okazaki, H. Yurimoto, M.E. Zolensky, T. Mukai, M. Abe, T. Yada, A. Fujimura, M. Yoshikawa, J. Kawaguchi, Origin and evolution of Itokawa regolith particles based on three dimensional shapes and sizes of Hayabusa samples, 74th Annual Meeting of the Meteoritical Society, 2011.08. |
| 48. |
H. Yurimoto, K. Abe, M. Abe, M. Ebihara, A. Fujimura, M. Hashiguchi, K. Hashizume, T.R. Ireland, S. Itoh, J. Katayama, C. Kato, J. Kawaguchi, N. Kawasaki, F. Kitajima S. Kobayashi, T. Meike. T. Mukai, K. Nagao, T. Nakamura, H. Naraoka. T. Noguchi, R. Okazaki, C. Park. N. Sakamoto, Y. Seto, M. Takei, A. Tsuchiya, M. Uesugi, S. Wakaki, T. Yada, K. Yamamoto, M. Yoshikawa, M.E. Zolensky, Oxygen and magnesium isotopic compositions of Asteroid 25143 Itokawa returned by the Hayabusa mission, 74th Annual Meeting of the Meteoritical Society, 2011.08. |
| 49. |
F. Kitajima, M. Kotsugi, T. Ohkochi, H. Naraoka, Y. Ishibashi, M. Abe, A. Fujimura, R. Okazaki, T. Yada, T. Nakamura, T. Noguchi, K. Nagao, A. Tsuchiyama, H. Yurimoto, M. Ebihara, T. Mukai. S.A. Sandford, T. Okada, K. Shirai, M. Ueno, M. Yoshikawa, J. Kawaguchi, A preliminary micro-spectroscopic analysis of the carbonaceous matter in the particles recovered by the Hayabusa mission, 74th Annual Meeting of the Meteoritical Society, 2011.08. |
| 50. |
T. Nakamura, T. Noguchi, M. Tanaka, M.E. Zolensky, M. Kimura, A. Tsuchiyama, A. Nakatou. T. Ogami, H. Ishida, M. Uesugi. T. Yada, K. Shirai, A. Fujimura, R. Okazaki, S. Sandford, S. Wakita, Y. Ishibashi, M. Abe, T. Okada, M. Ueno, T. Mukai, M. Yoshikawa, J. Kawaguchi, Mineralogy and thermal history of Itokawa surface particles recovered by Hayabusa mission, 74th Annual Meeting of the Meteoritical Society, 2011.08. |
| 51. |
T. Yada, A. Fujimura, M. Abe, T. Nakamura, T. Noguchi, R. Okazaki, T. Okada, Y. Ishibashi, K. Shirai, M.E. Zolensky, S. Sandford, M. Uesugi, K. Karouji, M. Ueno, T. Mukai, M. Yoshikawa, J. Kawaguchi, Hayabusa sample curation at planetary material sample curation facility in JAXA, 74th Annual Meeting of the Meteoritical Society, 2011.08. |
| 52. |
M. Abe, T. Yada, A. Fujimura, T. Okada, Y. Ishibashi1, K. Shirai, M. Uesugi, Y. Karouji, S. Yakame, T. Nakamura, T. Noguchi, R. Okazaki, T. Mukai, M. Fujimoto, M. Yoshikawa and J. Kawaguchi., Asteroid Itokawa sample curation and distribution for initial analyses and international AO held in the planetary material sample curation facility of JAXA, 43rd Lunar and Planetary Science Conference, 2011.03. |
| 53. |
H. Yabuta, S. Itoh, T. Noguchi, N. Sakamoto, M. Hashiguchi, K. Abe, S. Tsujimoto, A. L. D. Kilcoyne, A. Okubo, R. Okazaki, S Tachibana, K. Terada, T. Nakamura and H. Nagahara., Finding of nitrogen-rich organic material in Antarctic ultracarbonaceous micrometeorite , 43rd Lunar and Planetary Science Conference, 2011.03. |
| 54. |
T. Noguchi, M. Kimura, T. Hashimoto, M. Konno, T. Nakamura, A. Nakato, T. Ogami, H. Ishida, R. Sagae, S. Tsujimoto, A. Tsuchiyama, M. E. Zolensky, M. Tanaka, A. Fujimura, M. Abe, T. Yada, T. Mukai, M. Ueno, T. Okada, K. Shirai, Y. Ishibashi, and R. Okazaki., Space weathering products found on the surface of the Itokawa dust particles: A summary of the initial analysis, 43rd Lunar and Planetary Science Conference, 2011.03. |
| 55. |
M. Zolensky, T. Nakamura, T. Mikouchi, K.Hagiya, K. Ohsumi, M. Tanaka, T. Noguchi, M. Kimura, A. Tsuchiyama, A. Nakato, T. Ogami, H. Ishida, M. Uesugi, T. Yada, K. Shirai, A. Fujimura, R. Okazaki, Y. Ishibashi, M. Abe, T. Okada, M. Ueno, T. Mukai, M. Yoshikawa, J. Kawaguchi, The shock state of Itokawa samples, 43rd Lunar and Planetary Science Conference, 2011.03. |
| 56. |
Tsuchiyama A. * Ebihara M. Kimura M. Kitajima F. Kotsugi M. Ito S. Nagao K. Nakamura T. Naraoka H. Noguchi T. Okazaki R. Uesugi K. Uesugi M. Yurimoto H. Ireland T. R. Sandford S. A. Zolensky M. Fujimura A. Abe M. Yada T. Mukai T. Okada T. Ishibashi Y. Shirai K. Ueno M. Kawaguchi J. Yoshikawa M., Preliminary Examination of Particles Recovered from the Surface of the Asteroid 25143 Itokawa by the Hayabusa Mission, The 42nd Lunar and Planetary Science Conference, 2011.03. |
| 57. |
Fujimura A. Abe M. Yada T. * Nakamura T. Noguchi T. Okazaki R. Ishibashi Y. Shirai K. Okada T. Yano H. Zokensky M. E. Sandford S. Ueno M. Mukai T. Yoshikawa M. Kawaguchi J., Processes to Open the Container and the Sample Catcher of the Hayabusa Returned Capsule in the Planetary Material Sample Curation Facility of JAXA, The 42nd Lunar and Planetary Science Conference, 2011.03. |
| 58. |
Nakamura T. * Noguchi T. Tanaka M. Zolensky M. E. Kimura M. Nakato A. Ogami T. Ishida H. Tsuchiyama A. Yada T. Shirai K. Okazaki R. Fujimura A. Ishibashi Y. Abe M. Okada T. Ueno M. Mukai T., Mineralogy and Major Element Abundance of the Dust Particles Recovered from Muses-C Regio on the Asteroid Itokawa, The 42nd Lunar and Planetary Science Conference, 2011.03. |
| 59. |
Tsuchiyama A. * Uesugi M. Uesugi K. Nakano T. Nakamura T. Noguchi T. Noguchi R. Matsumoto T. Matsuno J. Nagano T. Takeuchi A. Suzuki Y. Ebihara M. Ireland T. R. Kitajima F. Nagao K. Naraoka H. Okazaki R. Sandford S. A. Yurimoto H. Zolensky M. E. Fujimura A. Abe M. Yada T. Mukai T. Kawaguchi J. Yoshikawa M., Three-Dimensional Structures of Particles Recovered from the Asteroid Itokawa by the Hayabusa Mission and a Role of X-Ray Microtomography in the Preliminary Examination, The 42nd Lunar and Planetary Science Conference, 2011.03. |
| 60. |
Ebihara M. * Sekimoto S. Hamajima Y. Yamamoto M. Kumagai K. Oura Y. Shirai N. Ireland T. R. Kitajima F. Nagao K. Nakamura T. Naraoka H. Noguchi T. Okazaki R. Tsuchiyama A. Uesugi M. Yurimoto H. Zorensky M. E. Abe M. Fujimura A. Mukai T. Yada T., Neutron Activation Analysis of Single Grains Recovered by the Hayabusa Spacecraft, The 42nd Lunar and Planetary Science Conference, 2011.03. |
| 61. |
Yurimoto H. * Abe M. Ebihara M. Fujimura A. Hashizume K. Ireland T. R. Itoh S. Kawaguchi J. Kitajima F. Mukai T. Nagao K. Nakamura T. Naraoka H. Noguchi T. Okazaki R. Sakamoto N. Seto Y. Tsuchiyama A. Uesugi M. Yada T. Yoshikawa M. Zolensky M., Oxygen and Magnesium Isotopic Compositions of Asteroidal Materials Returned from Itokawa by the Hayabusa Mission, The 42nd Lunar and Planetary Science Conference, 2011.03. |
| 62. |
Noguchi T. * Nakamura T. Kimura M. Zolensky M. E. Tanaka M. Hashimoto T. Konno M. Nakato A. Ogami T. Fujimura A. Abe M. Yada T. Mukai T. Ueno M. Okada T. Shirai K. Ishibashi Y. Okazaki R., SEM and TEM Observation of the Surfaces of the Fine-Grained Particles Retrieved from the MUSES-C Region on the Asteroid 25413 Itokawa, The 42nd Lunar and Planetary Science Conference, 2011.03. |
| 63. |
Okazaki R. * Nagao K. Miura Y. N. Osawa T. Bajo K. Matsuda S. Nakamura T. Shirai K. Abe M. Yada T. Noguchi T. Ishibashi Y. Fujimura A. Mukai T. Ueno M. Okada T. Yoshikawa M. Kawaguchi J., Noble Gases Recovered from the Hayabusa Sample Container , The 42nd Lunar and Planetary Science Conference, 2011.03. |
| 64. |
Nagao K. * Okazaki R. Nakamura T. Miura Y. N. Osawa T. Bajo K. Matsuda S. Ebihara M. Ireland T. R. Kitajima F. Naraoka H. Noguchi T. Tsuchiyama A. Uesugi M. Yurimoto H. Zolensky M. Shirai K. Abe M. Yada T. Ishibashi Y. Fujimura A. Mukai T. Ueno M. Okada T. Yoshikawa M. Kawaguchi J., Noble Gases of the Itokawa Samples Returned by the Hayabusa Mission, The 42nd Lunar and Planetary Science Conference, 2011.03. |
| 65. |
Kitajima F. * Kotsugi M. Ohkochi T. Naraoka H. Ishibashi Y. Abe M. Fujimura A. Okazaki R. Yada T. Nakamura T. Noguchi T. Nagao K. Tsuchiyama A. Mukai T. Sandford S. A. Okada T. Shirai K. Ueno M. Yoshikawa M. Kawaguchi J., A Micro-Spectroscopic Approach to the Carbonaceous Matter in the Particles Recovered by the Hayabusa Mission , The 42nd Lunar and Planetary Science Conference, 2011.03. |
| 66. |
Naraoka H. * Mita H. Hamase K. Mita M. Yabuta H. Saito K. Fukushima K. Kitajima F. Sandford S. A. Nakamura T. Noguchi T. Okazaki R. Tsuchiyama A. Yada T. Shirai K. Fujimura A. Ishibashi Y. Abe M. Okada T. Ueno M. Mukai T., Preliminary Organic Compound Analysis of Particles Returned from Asteroid 25143 Itokawa by the Hayabusa Mission, The 42nd Lunar and Planetary Science Conference, 2011.03. |
| 67. |
Abe M. Fujimura A. Yano H. Okamoto C. Okada T. Yada T. Ishibashi Y. Shirai K. Nakamura T. Noguchi T. Okazaki R. Zolensky M. E. Sandford S. A. Ireland T. Ueno M. Mukai T. Yoshikawa M. Yamada T. Kuninaka H. Kawaguchi J., Recovery, Transpotation and Acceptance of the Curation Facility of the Hayabusa Re-Entry Capsule, The 42nd Lunar and Planetary Science Conference, 2011.03. |
| 68. |
安部正真(ISAS/JAXA),藤村彰夫(ISAS/JAXA),矢田 達(ISAS/JAXA),中村智樹(東北大･理),野口高明(茨城大･理),岡崎隆司(九州大･理),石橋之宏(JSPEC/JAXA),白井 慶(JSPEC/JAXA),岡田達明(ISAS/JAXA),矢野 創(ISAS/JAXA),岡本千里(JSPEC/JAXA),上野宗孝(ISAS/JAXA),向井利典(JAXA), はやぶさ回収サンプルのキュレーション作業（１）～カプセル回収からコンテナ洗浄まで, 太陽系科学シンポジウム, 2010.12. |
| 69. |
藤村彰夫(ISAS/JAXA),安部正真(ISAS/JAXA),矢田 達(ISAS/JAXA),中村智樹(東北大･理),野口高明(茨城大･理),岡崎隆司(九州大･理),石橋之宏(JSPEC/JAXA),白井 慶(JSPEC/JAXA),石井信明(ISAS/JAXA),横田力男(ISAS/JAXA),岡田達明(ISAS/JAXA),上野宗孝(ISAS/JAXA),向井利典(JAXA), はやぶさ回収サンプルのキュレーション作業（2）～コンテナ開封からサンプルピックアップ作業まで, 太陽系科学シンポジウム, 2010.12. |
| 70. |
藤村彰夫*，安部正真(JAXA)，中村智樹(東北大)，野口高明(茨城大)，岡崎隆司(九州大)，矢田達，石橋之宏，白井慶，上野宗孝，向井利典(JAXA), 「はやぶさ」回収カプセル受入れとキュレーション作業, 日本惑星科学会秋季大会, 2010.10. |
| 71. |
藤村彰夫○ （JAXA）,安部正真 （JAXA）,矢田 達 （JAXA）,白井 慶 （JAXA）,石橋之宏 （JAXA）,中村智樹 （東北大）,岡崎隆司 （九大）,野口高明 （茨城大）,上野宗孝 （JAXA）,向井利典 （JAXA）, 「はやぶさ」カプセルの受け入れとサンプルコンテナの開封, 月惑星シンポジウム, 2010.08. |
| 72. |
土`山 明○ （阪大・理）,海老原充 （首都大東京・理工）,北島冨美雄 （九大・理）,長尾敬介 （東大・理）,中村智樹 （東北大・理）,奈良岡浩 （九大・理）,野口高明 （茨城大・理）,岡崎隆司 （九大）,上椙真之 （阪大・工）,圦本尚義 （北大・理）,初期分析チーム, はやぶさサンプル初期分析でめざすもの, 月惑星シンポジウム, 2010.08. |
| 73. |
土山 明,海老原 充,北島 富美雄,長尾 敬介,中村 智樹,奈良岡 浩,野口 高明,岡崎 隆司,上椙 真之,圦本 尚義, はやぶさサンプルの初期分析計画, 日本地球惑星科学連合2010年大会, 2010.05. |
| 74. |
藤村 彰夫,安部 正真,矢田 達,中村 智樹,岡崎 隆司,野口 高明,石橋之宏,白井 慶,小川 真帆,田中 智,小林 直樹,岡田 達明,加藤 學,上野 宗孝,向井 利典, はやぶさサンプルのキュレーション運用計画, 日本地球惑星科学連合2010年大会, 2010.05. |
| 75. |
中村智樹(東北大･理),野口高明(茨城大･理),岡崎隆司(九州大･理),藤村彰夫(ISAS/JAXA),安部正真(ISAS/JAXA),矢田 達(ISAS/JAXA),石橋之宏(JSPEC/JAXA),白井 慶(JSPEC/JAXA),岡田達明(ISAS/JAXA),上野宗孝(ISAS/JAXA),向井利典(JAXA), はやぶさ回収サンプルのキュレーション作業（3）～ピックアップサンプルの観察, 太陽系科学シンポジウム, 2010.03. |
| 76. |
岡崎隆司、中村智樹, エンスタタイトコンドライトの始原物質, 日本地球化学会, 2009.09. |
| 77. |
Shimojuku A., Kubo T., Ohtani E., Nakamura T., Okazaki R., Chakraborty S., Dohmen R., Si and O diffusion in (Mg,Fe)2SiO4 wadsleyite and ringwoodite and its implications for rheology of the mantle transition zone., American Geophysical Union, 2008.12. |
| 78. |
山本征生、中村智樹、岡崎隆司、長尾敬介, Nigqiang炭素質コンドライトの希ガス組成に基づいたプレソーラー粒子の存在度, 日本惑星科学会, 2008.11. |
| 79. |
下宿彰、久保友明、大谷栄治、中村智樹、岡崎隆司、Sumit Chakraborty、Ralf Dohmen, ウォズレアイトとリングウッダイト中の原子拡散とマントル遷移層のレオロジーへの適用, 日本鉱物科学会, 2008.09. |
| 80. |
長尾敬介、馬上謙一、岡崎隆司、中村智樹, Noble gas analyses of small extraterrestrial samples, 日本地球化学会, 2008.09. |
| 81. |
Okazaki R.
Nakamura T. , Mineralogy and isotope compositions of coarse-grained Antarctic micrometeorites. , 71th Annual Meteoritical Society Meeting , 2008.07. |
| 82. |
T. Nakamura, T. Noguchi, R. Okazaki, K. Jogo, and K. Ohtsuka , Mineralogical and stable isotope signatures of El-Quss Abu Said CM2 carbonaceous chondrite: pristine material from outer asteroid belt. , 71th Annual Meteoritical Society Meeting, 2008.07. |
| 83. |
下宿彰，久保友明，大谷栄治，中村智樹，岡崎隆司，S. Chakraborty, R. Dohmen,, ウォズレアイトとリングウッダイト中のSiとOの拡散, Si and O diffusion in wadsleyite and ringwoodite, , 日本地球惑星科学連合２００８年大会, 2008.05. |
| 84. |
下宿彰，久保友明，大谷栄治，中村智樹，岡崎隆司, 無水条件下におけるMg2SiO4 ウォズレアイト中のシリコン拡散 Si diffusivity in Mg2SiO4 wadsleyite under nominally dry conditions, 日本地球惑星科学連合２００８年大会, 2008.05. |
| 85. |
Okazaki R. and Nakamura T., Noble-gas and oxygen isotopes and REE abundances in Antarctic micrometeorites. , The 31st Symposium on Antarctic Meteorites, 2007.06. |
| 86. |
Shimojuku A., Kubo T., Ohtani E., Nakamura T., Okazaki R., Chakraborty S. and Dohmen R., Si and O diffusivity in ringwoodite. , High Pressure Mineral Physics Seminar (HPMPS-7) , 2007.05. |
| 87. |
Kakazu Y., Nakamura T., Ohnishi I. and Okazaki R., Chemical composition and formation process of silica-rich chondrule rims in the Sahara 00182 CR/CV chondrite. , 38th Lunar and Planetary Science Conference, 2007.03. |
| 88. |
下宿彰、大谷栄治、久保友明、中村智樹、岡崎隆司、S. Chakraborty、R. Dohmen, リングウッダイト中のシリコンと酸素の拡散, 第４７回高圧討論会, 2006.11. |
| 89. |
Shimada Y., Yasumatsu A., Motomura Y., Okazaki R., Nakamura T., Ohmoto H., Okaue Y. and Yokoyama T., Geochemical study on Temagami iron-formations, Canada. , 16th Annual V.M. Goldschmidt conference, 2006.08. |
| 90. |
R. Okazaki, T. Nakamura, Microchondrules within a troilite-rich rim around a chondrule in Yamato 790448 LL3 chondrite., 69th Annual Meteoritical Soceity Meeting, 2006.08. |
| 91. |
T. Nakamura, T. Noguchi, R. Okazaki, K. Jogo, K. Ohtsuki, El-Quss Abu Said: A CM2 carbonaceous chondrite with decomposed phyllosilicates., Desert Meteorite Workshop, 2006.08. |
| 92. |
A. Shimojuku, T. Kubo, E. Ohtani, T. Nakamura, R. Okazaki, Silicon diffusivity in ringwoodite at the transition zone conditions., 19th General Meeting of the International Mineralogical Association, 2006.07. |
| 93. |
T. Nakamura, R. Okazaki, G. R. Huss, Mineralogical and noble-gas isotopic signatures of thermally metamorphosed hydrous carbonaceous chondrites., 19th General Meeting of the International Mineralogical Association, 2006.07. |
| 94. |
R. Okazaki, N. Takaoka, T. Nakamura, K. Nagao, Primordial noble gases in enstatite chondrites: Implication for their parent bodies., 19th General Meeting of the International Mineralogical Association, 2006.07. |
| 95. |
下宿彰、大谷栄治、久保友明、中村智樹、岡崎隆司, 高圧下でのリングウッダイト中のシリコン拡散, 日本地球惑星科学連合２００６年大会, 2006.05. |
| 96. |
岡崎隆司、中村智樹, 非溶融南極宇宙塵の酸素同位体, 地球外起源固体微粒子に関する総合研究, 2006.03. |
| 97. |
R. Okazaki, T. Nakamura, Mineralogy and oxygen isotopes of unmelted Antarctic micrometeorites., 37th Lunar and Planetary Science Conference, 2006.03. |
| 98. |
T. Nakamura, R. Okazaki, G. R. Huss, Thermal metamorphysm of CM carbonaceous chondrites: Effects on phyllosilicate mineralogy and presolar grain abundances., 37th Lunar and Planetary Science Conference, 2006.03. |
| 99. |
Y. Yamamoto, T. Nakamura, T. Noguchi, R. Okazaki, K. Nagao, Temperature dependence of mineralogical and noble gas compositional changes during experimental aqueous alteration of Ningqiang., 37th Lunar and Planetary Science Conference, 2006.03. |
| 100. |
下宿彰、大谷栄治、久保友明、中村智樹、岡崎隆司, リングウッダイト中のシリコン拡散, ２００５年鉱物学会, 2005.09. |
| 101. |
朴芝鮮、長尾敬介、岡崎隆司, 火星隕石中希ガスの起源：地球風化岩石の希ガス組成からの考察, ２００５年日本地球化学会第５２回年会, 2005.09. |
| 102. |
山本征生、中村智樹、野口高明、岡崎隆司, Ningqiang炭素質コンドライト中の水質変質実験による鉱物、希ガス組成に与える影響, ２００５年日本地球化学会第５２回年会, 2005.09. |
| 103. |
山本征生、中村智樹、野口高明、岡崎隆司, Ningqiang炭素質コンドライト中の鉱物、希ガス組成に与える実験的水質変質の影響, 日本惑星科学会２００５年秋期講演会, 2005.09. |
| 104. |
R. Bartroschewitz, P. Appel, B. Mader, J. Park, K. Nagao, R. Okazaki, M Kusakabe, Sayh al Uhaymir 290 - A new CH3 Chondrite., 68th Annual Meteoritical Society Meeting, 2005.09. |
| 105. |
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