Oral presentation

R4: Mineral sciences of the Earth surface

Fri. Sep 15, 2023 9:00 AM - 11:30 AM 822 (Sugimoto Campus)

Chairperson:Satoshi Utsunomiya(Kyushu University), Tadashi Yokoyama(Hiroshima University), Jun Kawano(Hokkaido University)

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9:00 AM - 9:15 AM

[R4-01] Borehole core analysis of Hiroshima Granite: Depth variation of permeability and porosity and implications for weathering rates

*Tadashi YOKOYAMA¹, Atsuki Yoshida³, Masahiro Kaibori², Ikuo Katayama¹, Kazumasa Tanimoto¹ (1. Hiroshima Univ. Adv. Sci. Eng., 2. Hiroshima Univ. Resilience Research Center, 3. Kyoto Univ.)

9:15 AM - 9:30 AM

[R4-02] Hematite-Goethite Problem on Mars: Transformation of Ferrihydrite to Crystalline Fe Oxides in Salt Solutions

*So Fukaya¹, Keisuke Fukushi², Yoshio Takahashi³ (1. Kanazawa Univ. Sci., 2. Kanazawa Univ., 3. The University of Tokyo)

9:30 AM - 9:45 AM

[R4-03] Band structure of Fe oxides in the Earth surface

*Sayako INOUE¹, Naoki Tarutani² (1. Ehime Univ. GRC, 2. Hiroshima Univ. Adv. Sci. Eng,)

9:45 AM - 10:00 AM

[R4-04] Measurement of Exchange Selectivity Coefficients of Interlayer Cations in Smectites and their Raman Spectroscopic Characterization

*Yohei NOJI¹, Keisuke Fukushi², yuichiro Cho^3,2, HaHaruhisa Tabata³ (1. Kanazawa Univ. Sci., 2. Kanazawa Univ., 3. Tokyo Univ. )

10:00 AM - 10:15 AM

[2Lecture-301-09-5add] 休憩

10:15 AM - 10:30 AM

[R4-05] Analysis of the formation process of calcium carbonate polymorphs in gels with the pH visualization technique

Matsumoto Shinji¹, *Jun KAWANO¹, Kousei Miki¹, Takashi Toyofuku², Yukiko Nagai², Takaya Nagai¹ (1. Hokkaido Univ. Sci., 2. JAMSTEC)

10:30 AM - 10:45 AM

[R4-06] Unique structures and chemical compositions found around the center of fish otoliths

[Presentation award entry]

*Gen Takahashi¹, Taiga Okumura¹, Michio Suzuki ², Toshihiro Kogure¹ (1. Univ. Tokyo Sci., 2. Univ. Tokyo Agri.)

10:45 AM - 11:00 AM

[R4-07] The color change materials and cause of the coloring of the microbial mats on the surface of the calcareous sinter and the color change materials
~Mineral crystallization and oxidation in microbial mats~

*Miki Suzuki¹, Miku Tatuiwa², Terumi Ejima³, Haruki Yamazaki⁴, Hikari Minamisawa⁵, Masaomi Horita⁵, Maki Hamada⁶ (1. Shinshu Univ. Sci., 2. Shinshu Univ. Sci., 3. Shinshu Univ. Sci., GSJ, AIST, 4. Shinshu Univ. Sci., GSJ, AIST, 5. Shinshu Univ. Eng., 6. Kanazawa Univ.)

11:00 AM - 11:15 AM

[R4-08] U(VI) uptake during transformation of monohydrocalcite

*Yumi Morita¹, Keisuke Fukushi², Yoshio Takahashi³ (1. Kanazawa Univ. Sci, 2. Kanazawa Univ., 3. The University of Tokyo)

11:15 AM - 11:30 AM

[R4-09] Volatilization of B₄C control rods in Fukushima Daiichi nuclear reactors during meltdown: B–Li isotopic signatures in cesium-rich microparticles

Kazuki Fueda¹, Toshihiko Ohnuki⁷, Shinya Yamasaki², Kenji Horie³, Mami Takehara³, Gareth Law⁶, Bernd Grambow⁵, Rodney C. Ewing⁴, *Satoshi UTSUNOMIYA¹ (1. Kyushu University, 2. Tsukuba Univ., 3. NIPR, 4. Stanford Univ., 5. Univ. Nantes, 6. Univ. Helsinki, 7. TITECH)

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