The Eighth Symposium on Polar Science (4 – 8 December 2017)

Oral session on Mon. 4 Dec. │ Oral session on Tue. 5 Dec. │ Poster session on Tue. 5 Dec. │ Oral session on Wed. 6 Dec. │ Oral session on Tue. 7 Dec.

[OA] Antarctic meteorites / Hayabusa
[OA] 南極隕石 / はやぶさ

Scopes

This session will be held jointly with Hayabusa 2017 (symposium of solar system material), and to present recent research outcomes for Antarctic meteorites and micrometeorites. It will also be an opportunity for general and topical discussion sessions dealing with new data from non-Antarctic meteorites and extraterrestrial materials, and related experimental and theoretical works.

本セッションは、宇宙物質科学シンポジウム（Hayabusa 2017）と共催します。南極隕石や微隕石からの最新の成果を議論するほか、非南極隕石や地球外物質一般に関するもの、また、関連する実験的、理論的研究に関する発表も歓迎します。

Conveners : Akira Yamaguchi, Naoya Imae (NIPR), and Masanao Abe (JAXA)
Note: This session will be continued to Thursday.
[I] represents an invited talk.

Oral presentations (09:30 – 11:45, 13:00 – 14:30)

Date : Thu. 7 Dec.
Place : 2F Auditorium, National Institute for Japanese Language and Linguistics
口頭発表会場：国語研究所2階講堂

Chair: Sen Hu (Institute of Geology and Geophysics, Chinese Academy of Sciences)
Naoki Shirai (Tokyo Metropolitan University)
09:30 - 09:45 Chemical separation of Cr and Ti from a single digest for high precision isotope measurements of planetary materials *Yuki Hibiya (Univ. Tokyo), Tsuyoshi Iizuka(Univ. Tokyo), Katsuyuki Yamashita (Okayama Univ.), Shigekazu Yoneda (NMNS), Akane Yamakawa (NIES)
09:45 - 10:00 Formation age of mesosiderites *Makiko K. Haba (Tokyo Tech), Jörn-Frederik Wotzlow (ETH Zurich), Akira Yamaguchi (NIPR), Yi-Jen Lai (ETH Zurich), Maria Schönbächler (ETH Zurich)
10:00 - 10:15 Hf-W chronology of the Brenham pallasite *Yoshitaka Homma (the Univ. of Tokyo), Tsuyoshi Iizuka (the Univ. of Tokyo)
10:15 - 10:30 Two-step metallic partial melting on the acapulcoite-lodranite parent body *Yoshihiro Hidaka (TMU), Naoki Shirai (TMU), Akira Yamaguchi (NIPR), Mitsuru Ebihara (TMU)
10:30 - 10:45 Complex thermal and shock history of the Juvinas eucrites *Rei Kanemaru (SOKENDAI), Akira Yamaguchi (NIPR and SOKENDAI), Hirotsugu Nishido (OUS)
10:45 - 11:00 Quartz and tridymite in the Yamato 980433 cumulate eucrite: Implications for its thermal history *Haruka Ono (Univ. of Tokyo), Atsushi Takenouchi (Univ. of Tokyo), Akira Yamaguchi (NIPR), Takashi Mikouchi (Univ. of Tokyo)
11:00 - 11:15 Hydrothermal activity on Mars revealed by basaltic shergottite Y 002192 *Sen Hu (IGGCAS), Yangting Lin (IGGCAS), Akira Yamaguchi (NIPR), Jianchao Zhang (IGGCAS), Jialong Hao (NIPR)
11:15 - 11:30 In-situ characterization of carbon components in the North West Africa 7034 *Hiroki Suga (Hiroshima University), Masaaki Miyahara (Hiroshima University), Motoo Ito (Hiroshima University, and JAMSTEC), Yasuo Takeichi (KEK-PF), Hikaru Yabuta (Hiroshima University), Yoshio Takahashi (The University of Tokyo), Eiji Ohtani (Tohoku University)
11:30 - 11:45 The formation environment of the Nakhlite Y000593 inferred from deformation microstructures *Amiko Takano (Hiroshima Univ., Kochi Inst. Core Sample Res., JAMSTEC), Ikuo Katayama (Hiroshima Univ.), Tomohiro Usui (Tokyo Inst. Tech., ELSI), Motoo Ito (Kochi Inst. Core Sample Res., JAMSTEC), Katsuyoshi Michibayashi  (Shizuoka Univ.)
Lunch
Chair: Makiko K. Haba (Tokyo Institute of Technology)
13:00 - 13:15 Iron nano-particles in brown olivine in Yamato 984028 shergottite *Atsushi Takenouchi(Univ. of Tokyo) Takashi Mikouchi (Univ. of Tokyo)
13:15 - 13:30 High-pressure dissociation of olivine in North West Africa 7397 lherzolitic shergottite *Masashi Yoshida (Hiroshima Univ.), Masaaki Miyahara (Hiroshima Univ.), Akira Yamaguchi (NIPR), Naotaka Tomioka (JAMSTEC), Takeshi Sakai (Ehime Univ.), Hiroaki Ohfuji (Ehime Univ.), Fumiya Maeda (Tohoku Univ.), Itaru Ohira (Tohoku Univ.), Eiji Ohtani (Tohoku Univ.), Seiji Kamada (Tohoku Univ.), Hiroki Suga (Hiroshima Univ.), Takuji Ohigashi (UVSOR),  Yuichi Inagaki (UVSOR)
13:30 - 14:30 [I] Recent advances in Nb-Zr chronometry and early Martian silicate differentiation *M. Schönbächler (ETH Zurich), Y-J. Lai (ETH Zurich), M. K. Haba (Tokyo Tech), T. Iizuka (University of Tokyo)