2022 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)
Sep 17 - Sep 19, 2022新潟大学 五十嵐キャンパス
2022 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)
Sep 17 - Sep 19, 2022新潟大学 五十嵐キャンパス
[S2-01]Chloritization and porosity generation at crust-mantle material boundary
*Atsushi Okamoto1, Oyanagi Ryosuke2, Kazuki Yoshida1(1. Tohoku Univ. Env., 2. Kokushikan Univ.)
Keywords:
Chloritization,porosity,Serpentinite,Sanbagawa belt,Mass transfer
Chloritization occurs in various geological settings, including the seafloor alteration and metasomatisms. In this study, we report a novel texture of chloritization of pelitic schists in contact with serpentinite from the Sanabagwa belt, Kanto Mountains. Chloritization proceeds with preserving the original structures of pelitic schists and micro-porosities were formed at the reaction fronts. We will discuss that mass transport and formation of porosity during chloritization.