イトカワ粒子から探る新しい小惑星の描像

2014 Fiscal Year Annual Research Report

• Project/Area Number: 24244086
• Research Institution: Kyoto University
• Principal Investigator: 土山 明 京都大学, 理学(系)研究科(研究院), 教授 (90180017)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: はやぶさ計 / 宇宙風化 / 太陽風 / レゴリス / 月サンプル / ３次元構造 / X線CT / イオン照射実験

Outline of Annual Research Achievements

月レゴリス粒子について、アポロ11,16号サンプルに加えて、新たに旧ソ連のルナ16, 20, 24号のサンプルについて放射光マイクロX線CT撮影をおこない、これらの３次元外形を求めた。また、従来の実験に加えて、様々な条件において隕石模擬物質をターゲットとした高速衝突実験を新たにおこない、回収した破片粒子の３次元外形をもとめた。これらの粒子形状（３軸比）分布を、これまでに測定したイトカワのレゴリス粒子（はやぶさサンプル）と比較することにより以下の結論を得た。（1）衝突実験粒子の３次元形状は従来考えられていたよりも実験条件の違いにより多様性をもつ。（2）イトカワ粒子の３次元形状は衝突エネルギー密度の小さなクレータ生成実験のものと類似する。（3）月粒子はイトカワ粒子や衝突実験粒子に比べて有意に球状を示し、ガーデニングによる破砕と摩耗の影響を大きく受けている。
イトカワ粒子表面の微細構造について、FE-SEMだけでなくTEM観察をおこなった。これにより、太陽風照射により生成した宇宙風化リム中のブリスター構造が、FE-SEMにより表面で観察できることを示し、その分布から粒子の運動を論じた。また、粒子表面のナノクレータおよび微細溶融物がイトカワ表面での微小隕石の衝突によってできたことを示した。太陽風照射を模擬したイオン照射実験を引き続きおこない、はやぶさ粒子に見られる宇宙風化リム類似の組織が小さい照射フラックスで生成されることをはじめて示した。
これまでのサンプル分析と実験結果を総合することにより、イトカワ表面でのレゴリスの生成と進化のモデルを、実証的に描くことができた。とくに、短いタイムスケール（～10^4年）での太陽風照射による宇宙風化リム生成と比較的長いタイムスケールでの粒子の機械的摩耗が競合的におこることにより、観測される宇宙風化が進むことを示した。

Research Progress Status

26年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

26年度が最終年度であるため、記入しない。

Research Products

• [Journal Article] Chemical and mineralogical compositions of two grains recovered from an asteroid Itokawa. (2015)
  • Author(s): M. Ebihara, N. Shirai, S. Sekimoto, T. Nakamura, A. Tsuchiyama, J. Matsuno, T. Matsumoto, M. Tanaka, M. Abe, A. Fujimura, Y. Ishibashi, Y. Karouji, T. Mukai, T. Okada, M. Uesugi and T. Yada
  • Journal Title: Meteoritics & Planetary Science Volume: 50 Pages: 243-254
  • DOI: 10.1111/maps.12418
  • Peer Reviewed
• [Journal Article] Low Core-Mantle Boundary Temperature Inferred from the Solidus of Pyrolite. (2014)
  • Author(s): R. Nomura, K. Hirose, K. Uesugi, Y. Ohishi, A. Tsuchiyama, A. Miyake, Y. Ueno
  • Journal Title: Science Volume: 343 Pages: 522-525
  • DOI: 10.1126/science.1248186
  • Peer Reviewed
• [Journal Article] Investigation of cutting method for small samples of Hayabusa and future sample return missions. (2014)
  • 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 Pages: 1186-1201
  • DOI: 10.1111/maps.12322
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Sylvite and halite on particles recovered from 25143 Itokawa: Salts on Itokawa? (2014)
  • Author(s): T. Noguchi, M. Kimura, T. Hashimoto, M. Konno, T. Nakamura, M. E. Zolensky, A. Tsuchiyama, T. Matsumoto, J. Matsuno, R. Okazaki, M. Uesugi, Y. Karouji, T. Yada, Y. Ishibashi, K. Shirai, M. Abe, and T. Okada
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1305-1314
  • DOI: 10.1111/maps.12333
  • Peer Reviewed
• [Journal Article] Reduction Experiment of FeO-Bearing Amorphous Silicate: Application to Origin of Metallic Iron in GEMS. (2014)
  • Author(s): J. Matsuno, A. Tsuchiyama, A. Miyake, R. Noguchi, and S. Ichikawa
  • Journal Title: The Astrophysical Journal, Volume: 792 Pages: 136-143
  • DOI: 10.1088/0004-637X/792/2/136
  • Peer Reviewed
• [Journal Article] Investigation of 3D Grain Shape Characteristics of Lunar Soil Retrieved in Apollo 16 Using Image-Based Discrete-Element Modeling. (2014)
  • Author(s): Katagiri, J., Matsushima, T., Yamada, Y., Tsuchiyama, A., Nakano, T., Uesugi, K., Ohtake, M., and Saiki, K.
  • Journal Title: J. Aerosp. Eng. Volume: 10 Pages: 1061-1073
  • DOI: 10.1061/(ASCE)AS.1943-5525.0000421
  • Peer Reviewed
• [Journal Article] A new X-ray fluorescence spectroscopy for extraterrestrial materials using a muon beam. (2014)
  • Author(s): K. Terada, K. Ninomiya, T. Osawa, S. Tachibana, Y. Miyake, M. K. Kubo6, N. Kawamura, W. Higemoto, A. Tsuchiyama, M. Ebihara and M. Uesugi
  • Journal Title: Scientific Reports Volume: 4 Pages: 5072-5077
  • DOI: 10.1038/srep05072
  • Peer Reviewed
• [Journal Article] Stardust Interstellar Preliminary Examination I: Identification of tracks in aerogel. (2014)
  • Author(s): Westphal, A. J., D. Anderson, A. L. Butterworth, and 84 authors (A. Tsuchiyama 83/87 authors)
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1509-1521
  • DOI: 10.1111/maps.12168
  • Peer Reviewed
• [Journal Article] Stardust Interstellar Preliminary Examination II: Curating the interstellar dust collector, picokeystones, and sources of impact tracks. (2014)
  • Author(s): Frank, D. R., A. J. Westphal, M. E. Zolensky, and 64 authors (A. Tsuchiyama 62/67 authors)
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1522-1547
  • DOI: 10.1111/maps.12147
  • Peer Reviewed
• [Journal Article] Stardust Interstellar Preliminary Examination III: Infrared spectroscopic analysis of interstellar dust candidates. (2014)
  • Author(s): Bechtel, H. A., G. J. Flynn, C. Allen, and 65 authors (A. Tsuchiyama 60/68 authors)
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1548-1561
  • DOI: 10.1111/maps.12125
  • Peer Reviewed
• [Journal Article] Interstellar Preliminary Examination IV: Scanning transmission X-ray microscopy analyses of impact features in the Stardust Interstellar Dust Collector. (2014)
  • Author(s): Butterworth, A. L., A. J. Westphal, T. Tyliszczak, and 65 authors (A. Tsuchiyama 62/68 authors)
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1562-1593
  • DOI: 10.1111/maps.12220
  • Peer Reviewed
• [Journal Article] Stardust Interstellar Preliminary Examination V: XRF analyses of interstellar dust candidates at ESRF ID13. (2014)
  • Author(s): Brenker, F. E., A. J. Westphal, L. Vincze, and 66 authors (A. Tsuchiyama 49/69 authors)
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1594-1611
  • DOI: 10.1111/maps.12206
  • Peer Reviewed
• [Journal Article] Quantitative elemental analysis by synchrotron X-ray fluorescence nanoimaging of eight impact features in aerogel. (2014)
  • Author(s): Simionovici, A. S., L. Lemelle, P. Cloetens, and 65 authors (A. Tsuchiyama 61/68 authors)
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1612-1625
  • DOI: 10.1111/maps.12208
  • Peer Reviewed
• [Journal Article] Synchrotron X-ray fluorescence analysis of six Stardust interstellar candidates measured with the Advanced Photon Source 2-ID-D microprobe. (2014)
  • Author(s): Flynn, G. J., S. R. Sutton, B. Lai, S. Wirick, and 66 authors (A. Tsuchiyama 61/69 authors)
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1626-1644
  • DOI: 10.1111/maps.12144
  • Peer Reviewed
• [Journal Article] Stardust Interstellar Preliminary Examination VIII: Identification of crystalline material in two interstellar candidates. (2014)
  • Author(s): Gainsforth, Z., F. E. Brenker, A. S. Simionovici, and 64 authors (A. Tsuchiyama 63/67 authors)
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1645-1665
  • DOI: 10.1111/maps.12148
  • Peer Reviewed
• [Journal Article] Stardust Interstellar Preliminary Examination IX: High-speed interstellar dust analog capture in Stardust flight-spare aerogel. (2014)
  • Author(s): Postberg, F., J. K. Hillier, S. P. Armes, and 68 authors (A. Tsuchiyama 68/71 authors)
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1666-1679
  • DOI: 10.1111/maps.12173
  • Peer Reviewed
• [Journal Article] Stardust Interstellar Preliminary Examination X: Impact speeds and directions of interstellar grains on the Stardust dust collector. (2014)
  • Author(s): Sterken, V. J., A. J. Westphal, N. Altobelli, and 65 authors (A. Tsuchiyama 61/68 authors)
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1680-1697
  • DOI: 10.1111/maps.12219
  • Peer Reviewed
• [Journal Article] Stardust Interstellar Preliminary Examination XI: Identification and elemental analysis of impact craters on Al foils from the Stardust Interstellar Dust Collector. (2014)
  • Author(s): Stroud, R. M., C. Allen, A. Ansari, and 64 authors (A. Tsuchiyama 61/67 authors)
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1698-1719
  • DOI: 10.1111/maps.12136
  • Peer Reviewed
• [Journal Article] Final reports of the Stardust Interstellar Preliminary Examination. (2014)
  • Author(s): Westphal, A. J., H. A. Bechtel, F. E. Brenker, and 65 authors (A. Tsuchiyama 61/68 authors)
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1720-1733
  • DOI: 10.1111/maps.12221
  • Peer Reviewed
• [Journal Article] Mineralogy and petrography of C asteroid regolith: The Sutter's Mill CM meteorite. (2014)
  • Author(s): Zolensky, M., T. Mikouchi, M. Fries, R. Bodnar, P. Jenniskens, Q.-z. Yin, K. Hagiya, K. Ohsumi, M. Komatsu, M. Colbert, R. Hanna, J. Maisano, R. Ketcham, Y. Kebukawa, T. Nakamura, M. Matsuoka, S. Sasaki, A. Tsuchiyama, M. Gounelle, L. Le, J. Martinez, K. Ross and Z. Rahman
  • Journal Title: Meteoritics & Planetary Science Volume: 49 Pages: 1997-2016
  • DOI: 10.1111/maps.12386
  • Peer Reviewed
• [Journal Article] Formation mechanism of metal embedded amorphous silicate nanoparticles by induction thermal plasmas. (2014)
  • Author(s): M. Tanaka, J. Noda, T. Watanabe, J. Matsuno, and A. Tsuchiyama
  • Journal Title: Journal of Physics: Conference Series Volume: 518 Pages: 012025-012030
  • DOI: 10.1088/1742-6596/518/1/012025
  • Peer Reviewed
• [Presentation] WEATHERING EFFECTS OF SOLAR WIND PLOTONS ON SPECTRAL SHAPE OF SILICATE MINERALS. (2015)
  • Author(s): Y. Nakauchi, M. Abe, A. Tsuchiyama, K. Kitazato, T. Matsumoto, R. Ishigami
  • Organizer: Lunar Planet. Sci., XLVI
  • Place of Presentation: Woodlands, Texas, USA
  • Year and Date: 2015-03-16 – 2015-03-20
• [Presentation] DEPOSITION OF AMORPHOUS SILICATE FILMS FOR EXPERIMENTS ON SURFACE REACTIONS IN MOLECULAR CLOUDS AND PROTOPLANETARY DISKS, (2015)
  • Author(s): Tsuchiyama, A. Miyake, T. Hama, S. Tacibana, H. Terasaki, T. Kondo, Y. Adachi, H. Hidaka, N. Wakanabe, Y. Kimura, A. Kouchi
  • Organizer: Lunar Planet. Sci., XLVI
  • Place of Presentation: Woodlands, Texas, USA
  • Year and Date: 2015-03-16 – 2015-03-20
• [Presentation] THREE DIMENSIONAL STRUCTURES AND DETAIL MORPHOLOGIES OF AGGREGATE-TYPE ITOKAWA PARTICLES ANALYZED BY DUAL-ENERGY SYNCHROTRON RADIATION COMPUTED TOMOGRAPHY AND FIELD EMISSION SECONDARY ELECTRON MICROSCOPE. (2015)
  • Author(s): T. Yada, M. Uesugi, K. Uesugi, Y. Karouji, Y. Suzuki, A. Takeuchi, A. Tsuchiyama, T. Kuzumaki, T. Okada, and M. Abe
  • Organizer: Lunar Planet. Sci., XLVI
  • Place of Presentation: Woodlands, Texas, USA
  • Year and Date: 2015-03-16 – 2015-03-20
• [Presentation] LABORATORY SIMULATION OF THE EFFECT OF FES ON SPACE WEATHERING. (2015)
  • Author(s): M. Okazaki, S. Sasaki, A. Tsuchiyama, A. Miyake, T. Matsumoto, T. Hirata, T. Hiroi
  • Organizer: Lunar Planet. Sci., XLVI
  • Place of Presentation: Woodlands, Texas, USA
  • Year and Date: 2015-03-16 – 2015-03-20
• [Presentation] LUMINESCENCE SPECTROSCOPICAL PROPERTIES OF PLAGIOCLASE PARTICLES FROM HAYABUSA SAMPLE RETURN MISSION. (2015)
  • Author(s): A. Gucsik, H. Nishido, K. Ninagawa, A. Kereszturi, T. Nakamura, A. Tsuchiyama, C. Jager, U. Otto, M. Kayama
  • Organizer: Lunar Planet. Sci., XLVI
  • Place of Presentation: Woodlands, Texas, USA
  • Year and Date: 2015-03-16 – 2015-03-20
• [Presentation] SURFACE MORPHOLOGIES AND THEIR ORIGINS OF ITOKAWA REGOLITH PARTICLES. (2014)
  • Author(s): A. Tsuchiyama, T. Matsumoto, T. Nakamura, M. Nakamura, K. Uesugi, T. Nakano
  • Organizer: HAYABUSA 2014: Symposium of Solar System Materials
  • Place of Presentation: JAXA, Sagamihara, Japan.
  • Year and Date: 2014-12-04 – 2014-12-05
  • Invited
• [Presentation] A COMBINED CATHODOLUMINESCENCE AND MICRO-RAMAN STUDY OF PLAGIOCLASE FROM ASTEROID ITOKAWA: AN IMPLICATION FOR STUDY OF SPACE WEATHERING PROCESSES. (2014)
  • Author(s): A. Gucsik, H. Nishido, K. Ninagawa, C. Jäger, M. Kayama, A. Kereszturi, T. Nakamura and A. Tsuchiyama
  • Organizer: HAYABUSA 2014: Symposium of Solar System Materials
  • Place of Presentation: JAXA, Sagamihara, Japan.
  • Year and Date: 2014-12-04 – 2014-12-05
  • Invited
• [Presentation] Distribution of space weathered rims on Itoakwa regolith particles and implication to space weathering of Asteroid Itokawa. (2014)
  • Author(s): T. Matsumoto, A. Tsuchiyama, T. Nakamura, M. Nakamura, K. Uesugi, T. Nakano
  • Organizer: HAYABUSA 2014: Symposium of Solar System Materials
  • Place of Presentation: JAXA, Sagamihara, Japan.
  • Year and Date: 2014-12-04 – 2014-12-05
• [Presentation] Consortium study of the largest Itokawa particle. (2014)
  • Author(s): M. Uesugi, A. Tsuchiyama, K. Uesugi, A. Takeuchi, Y. Suzuki, J. Park, K. Nagao, K. Nishiizumi, D. Nakashima, N. T. Kita, F. Langenhorst, L. P. Keller, T. Yada, Y. Karouji, A. Nakato, K. Kumagai1\, T. Okada, M. Abe
  • Organizer: HAYABUSA 2014: Symposium of Solar System Materials
  • Place of Presentation: JAXA, Sagamihara, Japan.
  • Year and Date: 2014-12-04 – 2014-12-05
• [Presentation] STUDIES OF ITOKAWA’S SURFACE EXPOSURE BY MEASUREMENTS OF COSMIC-RAY PRODUCED NUCLIDES. (2014)
  • Author(s): M. W. Caffee, K. Nishiizumi, A. Tsuchiyama, M. Uesugi, and M. E. Zolensky
  • Organizer: HAYABUSA 2014: Symposium of Solar System Materials
  • Place of Presentation: JAXA, Sagamihara, Japan.
  • Year and Date: 2014-12-04 – 2014-12-05
  • Invited
• [Presentation] MINERALOGY OF ITOKAWA DUST PARTICLES WITH POSSIBLE SHOCK-INDUCED MELTING. (2014)
  • Author(s): T. Nakamura, T. Noguchi, A. Tsuchiyama, M. Kimura, M. E. Zolensky, M. Tanaka, K. Tazawa, M. Uesugi, A. Nakato, T. Yada, R. Okazaki, K. Shirai, Y. Ishibashi, Y. Karouji, M. Abe, T. Okada, A. Fujimura
  • Organizer: HAYABUSA 2014: Symposium of Solar System Materials
  • Place of Presentation: JAXA, Sagamihara, Japan.
  • Year and Date: 2014-12-04 – 2014-12-05
  • Invited
• [Presentation] INFLUENCE OF THE SOLAR WIND PROTON IN MINERALS CONTAINED C-TYPE ASTEROIDS. (2014)
  • Author(s): Y. Nakauchi, M. Abe, A. Tsuchiyama, K. Kitazato, K. Yasuda
  • Organizer: HAYABUSA 2014: Symposium of Solar System Materials
  • Place of Presentation: JAXA, Sagamihara, Japan.
  • Year and Date: 2014-12-04 – 2014-12-05
• [Presentation] Aqueous fluid inclusion candidates in Sutter’s Mill meteorite (CM) and their 3D micro-textures using X-ray micro-tomography combined with FIB sampling. (2014)
  • Author(s): A. Tsuchiyama, A. Miyake, M. E. Zolensky, K. Uesugi, T. Nakano, A. Takeuchi, Y. Suzuki and K. Yoshida
  • Organizer: The Fifth Symposium on Polar Science, Antarctic Meteorites
  • Place of Presentation: National Institute of Polar Research, Tokyo, Japan
  • Year and Date: 2014-12-02 – 2014-12-05
• [Presentation] かんらん岩および玄武岩高速衝突破片の3次元形状分布：はやぶさ粒子との比較 (2014)
  • Author(s): 土`山 明、島田 玲、道上達広、荒川政彦、長谷川 直、中野 司
  • Organizer: 日本惑星科学会2014年秋季講演会
  • Place of Presentation: 仙台市東北大学片平さくらホール
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] 太陽風による宇宙風化を模擬した照射実験試料の表面・内部構造の観察：小惑星イトカワ・月のレゴリス粒子との比較 (2014)
  • Author(s): 松本 徹,土`山 明,渡部直樹,香内 晃, 三宅 亮,大竹真紀子
  • Organizer: 日本惑星科学会2014年秋季講演会
  • Place of Presentation: 仙台市東北大学片平さくらホール
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] はやぶさ帰還試料コンソーシアム研究－最大粒子の３次元組織と形成機構 (2014)
  • Author(s): 上椙真之, 土`山 明, 矢田 達, 中藤亜衣子, 唐牛 譲, 熊谷和也, 上杉健太朗, 竹内晃久, 鈴木芳生
  • Organizer: 日本惑星科学会2014年秋季講演会
  • Place of Presentation: 仙台市東北大学片平さくらホール
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] 層状珪酸塩鉱物における太陽風プロトンの影響：反射スペクトル形状の年代変化 (2014)
  • Author(s): 仲内悠祐, 安部正真, 土`山 明, 北里宏平, 安田啓介
  • Organizer: 日本惑星科学会2014年秋季講演会
  • Place of Presentation: 仙台市東北大学片平さくらホール
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] アグリゲート型イトカワ粒子の三次元構造解析 (2014)
  • Author(s): 矢田 達, 上椙真之, 上杉健太朗, 唐牛 譲, 鈴木芳生, 竹内晃久, 土`山 明, 安部正真, 岡田達明, 葛巻 徹
  • Organizer: 日本惑星科学会2014年秋季講演会
  • Place of Presentation: 仙台市東北大学片平さくらホール
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] ナノ秒パルスレーザー照射模擬実験による宇宙風化作用における硫化鉄の効果の検証 (2014)
  • Author(s): 岡崎瑞祈、佐々木晶、廣井孝弘、土`山 明、三宅 亮、松本 徹、平田岳史
  • Organizer: 日本惑星科学会2014年秋季講演会
  • Place of Presentation: 仙台市東北大学片平さくらホール
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] C型小惑星を模擬した焼結ガラスビーズ試料へのクレータ形成実験 (2014)
  • Author(s): 岡本千里，池崎克俊，今栄直也，矢野 創，橘 省吾，土`山 明，澤田弘崇， 長谷川直，中村昭子，富山隆將
  • Organizer: 日本惑星科学会2014年秋季講演会
  • Place of Presentation: 仙台市東北大学片平さくらホール
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] 衝突破片形状の実験的研究と小惑星イトカワの岩塊の形状 (2014)
  • Author(s): 道上達広、吉田明史、門川隆進、島田 玲、土`山 明、長谷川 直
  • Organizer: 日本惑星科学会2014年秋季講演会
  • Place of Presentation: 仙台市東北大学片平さくらホール
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] 4He+照射実験を行ったコランダム(α-Al2O3)の表面近傍のTEM/STEM観察・分析 (2014)
  • Author(s): 三宅亮, 瀧川晶, 土`山 明, 松本 徹, 安田 啓介, 中田吉則, 藤 昇一, 福永 啓一
  • Organizer: 日本鉱物科学会2014年年会
  • Place of Presentation: 熊本市熊本大学
  • Year and Date: 2014-09-17 – 2014-09-19
• [Presentation] FIB-X線マイクロCT法を用いた炭素質コンドライトからの含水流体包有物の探索 (2014)
  • Author(s): 土`山 明, 三宅亮, Zolensky Michael, 上杉健太朗, 竹内晃久, 鈴木 芳生, 中野 司, 吉田 健太
  • Organizer: 日本鉱物科学会2014年年会
  • Place of Presentation: 熊本市熊本大学
  • Year and Date: 2014-09-17 – 2014-09-19
• [Presentation] SEARCH FOR FLUID INCLUSIONS IN A CARBONACEOUS CHONDRITE USING A NEW X-RAY MICRO-TOMOGRAPHY TECHNIQUE COMBAINED WITH FIB SAMPLING. (2014)
  • Author(s): A. Tsuchiyama, A. Miyake, M. E. Zolensky, K. Uesugi, T. Nakano, A. Takeuchi, Y. Suzuki and K. Yoshida
  • Organizer: 77th Annual Meeting of Meteoritical Society
  • Place of Presentation: Casablanca, Morocco
  • Year and Date: 2014-09-08 – 2014-09-13
• [Presentation] Current status of the consortium sturdy of the largest Itokawa particle RA-QD02-0136-01. (2014)
  • Author(s): M. Uesugi, A. Tsuchiyama, K. Uesugi, A. Takeuchi, Y. Suzuki, J.Park, K. Nagao, K. Nishiizumi, D. Nakashima, N. Kita, F. Langenhorst, L. Keller, Y. Karouji, A. Nakato, T. Yada, K. Kumagai, T.Okada, M Abe
  • Organizer: 77th Annual Meeting of Meteoritical Society
  • Place of Presentation: Casablanca, Morocco
  • Year and Date: 2014-09-08 – 2014-09-13
• [Presentation] Three dimensional structures of aggregate-type Itokawa particles. (2014)
  • Author(s): T. Yada, M. Uesugi, K. Uesugi, Y. Karouji, Y. Suzuki, A. Takeuchi, A. Tsuchiyama, T. Okada, M. Abe
  • Organizer: 77th Annual Meeting of Meteoritical Society
  • Place of Presentation: Casablanca, Morocco
  • Year and Date: 2014-09-08 – 2014-09-13
• [Presentation] SURFACE MICROMORPHOLOGIES OF REGOLITH PARTICLES FROM ASTEROID ITOKAWA AND ITS IMPLICAITION TO SPACE WEATHERING. (2014)
  • Author(s): T. Matsumoto, A. Tsuchiyama, A. Miyake, T. Noguchi, T. Nakamura, M. Nakamura, J. Matsuno, A. Shimada, K. Uesugi, T. Nakano
  • Organizer: 77th Annual Meeting of Meteoritical Society
  • Place of Presentation: Casablanca, Morocco
  • Year and Date: 2014-09-08 – 2014-09-13
• [Presentation] Space weathering measured on Itokawa samples. (2014)
  • Author(s): A. Tsuchiyama
  • Organizer: International Workshop: Carbonaceous chondrites: their parent bodies and their link with primitive asteroids.
  • Place of Presentation: Citadelle de Villefranche sur Mer, France
  • Year and Date: 2014-06-02 – 2014-06-04
  • Invited
• [Presentation] FIB加工とマイクロCTを用いた炭素質コンドライト隕石からの太陽系始原水の探索 (2014)
  • Author(s): 土`山 明，三宅 亮，ゾレンスキー マイケル，上杉健太朗，竹内晃久，鈴木芳生，中野 司，吉田 健太
  • Organizer: 日本顕微鏡学会第70回記念学術講演会
  • Place of Presentation: 千葉市幕張メッセ
  • Year and Date: 2014-05-11 – 2014-05-13
• [Presentation] 含水ケイ酸塩鉱物に対する太陽風プロトンによる風化作用の影響 (2014)
  • Author(s): 仲内悠祐, 安部正真, 北里宏平, 土`山明, 安田啓介
  • Organizer: 日本地球惑星科学連合2014年大会
  • Place of Presentation: 横浜市パシフィコ横浜
  • Year and Date: 2014-04-28 – 2014-05-02
• [Presentation] アグリゲートタイプイトカワ粒子の3 次元構造について (2014)
  • Author(s): 矢田達, 上椙真之, 唐牛譲, 上杉健太朗, 土`山明, 石橋之宏, 岡田達明, 安部正真
  • Organizer: 日本地球惑星科学連合2014年大会
  • Place of Presentation: 横浜市パシフィコ横浜
  • Year and Date: 2014-04-28 – 2014-05-02
• [Presentation] イトカワレゴリス粒子の３次元構造：月レゴリス粒子との比較 (2014)
  • Author(s): 土`山明, 松島亘志, 松本徹, 中野司, 松野淳也, 島田玲, 上杉健太朗, 竹内晃久, 鈴木芳生, 大竹真紀子, 中村智樹, 上椙真之, 矢田達, 西泉邦彦
  • Organizer: 日本地球惑星科学連合2014年大会
  • Place of Presentation: 横浜市パシフィコ横浜
  • Year and Date: 2014-04-28 – 2014-05-02
• [Presentation] 小惑星イトカワのレゴリス粒子の表面微細構造から考察するレゴリスの宇宙風化過程 (2014)
  • Author(s): 松本徹, 土`山明 , 三宅亮, 野口高明, 中村智樹, 中村美千彦, 松野淳也, 島田玲, 上杉健太朗, 中野司
  • Organizer: 日本地球惑星科学連合2014年大会
  • Place of Presentation: 横浜市パシフィコ横浜
  • Year and Date: 2014-04-28 – 2014-05-02