2025 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)
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Session Details

Oral presentationR5: Extraterrestrial materials

R5: Extraterrestrial materials

Wed. Sep 10, 2025 3:30 PM - 6:00 PM JST
Wed. Sep 10, 2025 6:30 AM - 9:00 AM UTC
Oral Presentation B (Room No. 28)
Chairperson:Toru Matsumoto(Kyoto University), Daiki Yamamoto(Kyushu University), Megumi Matsumoto(Tohoku University)
3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)

[R5-01]Numerical simulation of solidification process of barred olivine chondrules

*Hitoshi MIURA1, Tomoyo Morita2, Tomoki Nakamura2, Kana Watanabe2, Akira Tsuchiyama3,4, Yuki Kimura5, Chihiro Koyama6 (1. Nagoya City Univ., 2. Tohoku Univ., 3. CAS, 4. Ritsumeikan Univ., 5. Hokkaido Univ., ILTS, 6. JAXA)
Comment()
3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[R5-02]Solar activity recorded in Itokawa grains over the past tens of thousands of years

*Takaaki NOGUCHI1, Ryuji Okazaki2, Toru Matsumoto3,1, Akira Tsuchiyama4,5, Hiroshi Hidaka6, Makoto Kimura7, Rikako Matsumoto2, Yuji Miyake2, Yu Tobimatsu2, Chie Nakata2, Moeka Harada2, Yukiko Hirayama2,8, Kasumi Yogata2,9 (1. Kyoto Univ. Sci., 2. Kyushu Univ. Sci., 3. Kyoto Univ. Hakubi, 4. Ritsumeikan Univ. ROST, 5. Guangzhou Inst. Geochem., Chin. Ac. Sci., 6. Nagoya Univ. Sci., 7. NIPR, 8. AIST, 9. JAXA ISAS)
Comment()
4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)

[R5-03]Observations of altered low-Ca pyroxene in the Allende CV3 chondrite using aberration corrected scanning transmission electron microscopy

*Ichiro Ohnishi1 (1. JEOL Ltd.)
Comment()
4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[R5-04]A Study on the Crystallographic Orientation Relationship between Brownleeite and LIME Olivine

*Hirokazu Tatsuoka1, Chihiro Atsumi2, Kosuke Oishi2, Kota Kawaguchi2, Chitose Shibata2, Haruta Saito2, Nobuhisa Fujima1 (1. Shizuoka Univ. Eng., 2. Shizuoka Univ. DaVinci Kids)
Comment()
4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[R5-05]Relationship between chemical compositions and high pressure phase transition on ulvöspinel in Martian meteorites

*Atsushi TAKENOUCHI1, Youhei Igami2, Akira Miyake2, Takashi Mikouchi3, Akira Yamaguchi4 (1. The Kyoto Univ. Museum, 2. Kyoto Univ. Sci., 3. The Tokyo Univ. Museum, 4. NIPR)
Comment()
4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)Student Presentation Award Entry

[R5-06]Martian Mantle Structure Constraints Derived from the Redox States and Geochemical Characteristics of Poikilitic Shergottites

*Sojiro YAMAZAKI1, Takashi MIKOUCHI1,2, Akira YAMAGUCHI3, Atsushi TAKENOUCHI4 (1. Univ. of Tokyo, 2. Univ. Museum, Univ. of Tokyo, 3. Natl. Polar Res. Inst., 4. Univ. Museum, Kyoto Univ.)
Comment()
5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)Student Presentation Award Entry

[R5-07]On the Possibility of Multiple Parent Bodies of “Angrite” Meteorites as Inferred from Petrography, Mineral Compositions, and Oxygen Isotopic Compositions

*Rikuto Honda1, Rider-Stokes G. Ben2, Sojiro Yamazaki1, Akira Yamaguchi3, Hideaki Hayashi4, Takashi Mikouchi5 (1. Fac. Sci. Univ. Tokyo, 2. School of Phys. Sci., The Open Univ., 3. Natl. Inst. of Polar Res., 4. Nat’l. Mus. Nat. Sci., 5. Univ. Museum, Univ. Tokyo)
Comment()
5:15 PM - 5:30 PM JST(8:15 AM - 8:30 AM UTC)

[R5-08]Olivine xenocryst with mosaicism in the NWA 13363 angrite

*Hideyuki HAYASHI1, Rikuto HONDA2, Takashi MIKOUCHI3 (1. Nat’l. Mus. Nat. Sci., 2. Fac. Sci., Univ. Tokyo, 3. Univ. Museum, Univ. Tokyo)
Comment()
5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)

[R5-09]Diamond Formation Process of Y-8448 Ureilite: Microcrystal structure analysis using synchrotron radiation nano-CT combined with EBSD technique

*Masahiro YASUTAKE1, Megumi Matsumoto2, Junya Matsuno3, Akira Tsuchiyama4,5, Kentaro Uesugi1, Akihisa Takeuchi1, Akira Yamaguchi6 (1. JASRI, 2. Tohoku Univ., 3. Kyoto Univ., 4. Ritsumeikan Univ., 5. CAS/GIG, 6. NIPR)
Comment()
5:45 PM - 6:00 PM JST(8:45 AM - 9:00 AM UTC)

[R5-10]Occurrence and origin of apatite in NWA 6928 diogenite: Evidence for metasomatism on the HED parent body

*Akira YAMAGUCHI1, Shoichi Itoh2, Barrat Jean-Alix3 (1. National Institute of Polar Research, 2. Kyoto University, 3. Univ Brest)
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