*Shunsuke Fukuhara¹, Tatsuki Tsujimori¹, Shogo Aoki², Kazumasa Aoki², Vladimir Malkovets³, Ludmila Pokhilenko³ (1.Tohoku University, 2.Okayama University of Science, 3.S.V. Sobolev Institute of Geology and Mineralogy)

*Morita Isamu¹, Tatsuki Tsujimori¹, Nelson Boniface², Kennet E Flores³, Shogo Aoki⁴, Kazumasa Aoki⁴ (1.Tohoku University, 2.University of Dar es Salaam, 3.Brooklyn College of the City University of New York, 4.Okayama University of Science)

Shota Matsunaga ², *Atsushi MIYASHITA¹, Tatsuki Tsujimori², Kazumasa Aoki³, Shogo Aoki³ (1.Seikei University, 2.Tohoku University, 3.Okayama University of Science)

*Hironobu Harada¹, Tatsuki Tsujimori¹, Shogo Aoki², Kazumasa Aoki² (1.Tohoku Univesity, 2.Okayama Univerity of Science)