2025 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)
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Oral presentationR4: Mineral sciences of the Earth surface

R4: Mineral sciences of the Earth surface

Fri. Sep 12, 2025 2:00 PM - 3:30 PM JST
Fri. Sep 12, 2025 5:00 AM - 6:30 AM UTC
Oral Presentation A (Room No. 2)
Chairperson:Hiroshi Sakuma, Jun Kawano
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2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[R4-04]Characterization of the mixed-layer structure in “hydrobiotite” using micro-XRD

*Toshihiro KOGURE1,6, Kazuya MORIMOTO2, Ryosuke KIKUCHI3, Kenji TAMURA4, Taiga OKUMURA1, Shingo YOKOYAMA5, Asuka YAMAGUCHI6 (1. Waseda Univ., 2. AIST, 3. Hokkaido Univ., 4. NIMS, 5. CRIEPI, 6. Univ. Tokyo)
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2:15 PM - 2:45 PM JST(5:15 AM - 5:45 AM UTC)Invited Lecture

[R4-05]Atomic-Scale Modeling of Clay Minerals: Classical, Quantum, and Machine Learning Approaches

*Masahiko Okumura1 (1. JAEA)
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2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)Student Presentation Award Entry

[R4-06]Hydrogen diffusion simulation in fluorapatite using universal neural network potential molecular dynamics

*Chikashi Yoshimoto1, Soshi Iimura2, Shoichi Itoh1 (1. Kyoto University, 2. NIMS)
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3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)Student Presentation Award Entry

[R4-07]Relationship between the weathering degree of granite and the surface roughness of minerals: an example of Mt. Gagara, Hiroshima

*Hikaru Okamura1, Tadashi Yokoyama1, Masahiro Kaibori2 (1. Hiroshima Univ. ADSE, 2. Hiroshima Univ. Resilience Research Center)
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3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)

[R4-08]Influence of clay minerals on permeability as revealed by comparison of heating experiments on granite and natural weathering

*Tadashi YOKOYAMA1, Yumi Mizuno3, Masahiro Kaibori2 (1. Hiroshima Univ. Adv. Sci., 2. Hiroshima Univ. Resilience Res., 3. Hiroshima Univ)
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