[PC2-01] Redox state of iron during serpentinization of the crust-mantle transition zone to the upper mantle section of the Oman Ophiolite

*Kazuki Yoshida¹, Atsushi Okamoto¹, Ryosuke Oyanagi^2,3, Masakazu Fujii⁴, Yasuhiro Niwa⁵, Yasuo Takeichi⁶, Shuhei Tanaka, Masao Kimura⁵ (1. Tohoku Univ. (Japan), 2. Kokushikan Univ. (Japan), 3. Japan Agency for Marine-Earth Science and Technology (Japan), 4. National Institute of Polar Research (Japan), 5. High Energy Accelerator Research Organization (Japan), 6. Osaka Univ. (Japan))

[PC2-02] Reaction-induced fracturing in serpentinite carbonation

*Taiki Igarashi¹, Masaoki Uno¹, Atsushi Okamoto¹ (1. Tohoku Univ. (Japan))

[PC2-03] Improving reactivity, porosity, and permeability of basalt with biodegradable chelating agents to facilitate geological CO₂ storage and mineralization

*Ryota Sekiai¹, Jiajie Wang¹, Atsushi Okamoto¹, Noriaki Watanabe¹ (1. Tohoku University (Japan))

[PC2-04] Nb contents reveal the origin of metamorphic fluids in jadeitite

*Xin Jin¹, Tatsuki Tsujimori², Donna L. Whitney³, Yu-Xiu Zhang⁴, Wei-Dong Sun¹ (1. Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao (China), 2. Center for North East Asian Studies, Tohoku University, 980-8576, 41 Kawauchi, Aoba-Ku, Sendai, Miyagi (Japan), 3. Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, Minnesota (United States of America), 4. College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing (China))

[PC2-05] High-temperature brecciation and failure of impermeable layer: A lesson from porphyry as an insight for supercritical geothermal system

*Geri Agroli¹, Bayarbold Manzhir^1,2, Otgonbayar Dandar^1,2, Atsushi Okamoto¹, Masaoki Uno¹, Noriyoshi Tsuchiya¹ (1. Graduated School of Environmental Studies, Tohoku University (Japan), 2. Geoscience Center, Mongolian University of Science and Technology (Mongolia))

[PC2-06] Carbonation of serpentinite in the subduction zone: Insight from the Kanasaki ophicarbonate, Kanto Mountains, Japan.

*Ryosuke Oyanagi^1,2, Hikaru Sawada², Qing Chang², Madhusoodhan Satish-Kumar³ (1. Kokushikan University (Japan), 2. Japan Agency for Marine-Earth Science and Technology (Japan), 3. Niigata University (Japan))

[PC2-07] Mineral dissolution behaviors in the presence of potential natural chelating agents and their potential contribution to CO₂ removal

*Sena Kikuchi¹, Noriyoshi Tsuchiya¹, Wang Jiajie¹ (1. Tohoku Univ. Environmental sci. (Japan))

[PC2-08] Super-resolution of X-ray CT images of rock samples by sparse representation: applications to the complex texture of serpentinite

*Toshiaki Omori¹, Shoi Suzuki¹, Katsuyoshi Michibayashi², Atsushi Okamoto³ (1. Kobe University (Japan), 2. Nagoya University (Japan), 3. Tohoku University (Japan))

[PC2-09] Multiphase-solid fluid inclusion in eclogitic garnets of the Mélange zone, western Mongolia<quillbot-extension-portal></quillbot-extension-portal>

*Manzshir Bayarbold^1,2, Atsushi Okamoto¹, Masaoki Uno¹, Alexey Kotov¹, Geri Agroli¹, Otgonbayar Dandar^1,2, Kenta Yoshida³, Yasuhiro Niwa⁴, Masao Kimura⁴, Noriyoshi Tsuchiya¹ (1. Graduate School of Environmental Studies, Tohoku University (Japan), 2. Geoscience Center, Mongolian University of Science and Technology, Ulaanbaatar (Mongolia), 3. Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology (JAMSTEC) (Japan), 4. Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK) (Japan))

[PC2-10] Hydrothermal experiments on microporosity formation during an uncoupled dissolution-precipitation process in plagioclase replacement at mid-crustal condition

*Astin Nurdiana¹, Atsushi Okamoto¹, Masaoki Uno¹, Noriyoshi Tsuchiya¹ (1. Tohoku University (Japan))

[PC2-11] Cr-bearing garnet veins in pyroxenite, in Yawatahama City, Ehime Prefecture, Japan

*Satomi Enju¹, Yosuke Shimamura¹, Yohei Shirose¹ (1. Ehime University (Japan))

[PC2-12] Experimental investigation on pore structure alteration characteristics of Longmaxi shale under different HCl concentrations

Gen Wang¹, *Yongli Wang³, Zhifu Wei¹, Zepeng Sun², Ting Zhang¹, Xueyun Ma¹ (1. Northwest Institute of Eco-Environment and Resources, CAS (China), 2. Shanxi Agricultural University (China), 3. Institute of Geology and Geophysics, CAS (China))

[PC2-13] Integrated analysis using rock magnetism and synchrotron radiation for magnetite within abyssal serpentinized peridotites

*Masakazu Fujii^1,2, Kazuki Yoshida³, Atsushi Okamoto³, Kenta Yoshida⁴, Ryosuke Oyanagi⁵, Yasuhiro Niwa^2,6, Masao Kimura^2,6 (1. National Institute of Polar Research (Japan), 2. The Graduate University for Advanced Studies, SOKENDAI (Japan), 3. Tohoku University (Japan), 4. Japan Agency for Marine-Earth Science and Technology (Japan), 5. Kokushikan University (Japan), 6. High Energy Accelerator Research Organization (Japan))

[PC2-14] Epidote Formation after Plagioclase during Hydrothermal Alteration of Gabbro Body: Example from the Khantaishir Ophiolite, Western Mongolia

*Otgonbayar Dandar¹, Atsushi Okamoto¹, Masaoki Uno¹, Noriyoshi Tsuchiya¹ (1. Tohoku university (Japan))

Session information

C-2: Fluid-rock reactions and nano- to microstructural evolution during metamorphism and alteration.