Anton Shatskiy¹, Ivan Podborodnikov¹, *Konstantin Litasov¹, Artem Chanyshev¹, Anton Arefiev¹, Igor Sharygin¹, Nikolay Karmanov¹, Eiji Ohtani² (1.V.S. Sobolev Institute of Geology and Mineralogy, Russian Academy of Science, 2.Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University)