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

[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))

キーワード：Serpentinization, Iron redox state, X-ray Absorption Fine Structure, Serpentinite, Magnetite