*Shunichi Kamata¹, Kento Nakanishi¹, Kiyoshi Kuramoto¹ (1.Faculty of Science, Hokkaido University)

*Masahiro Yoda^1,2, Yasuhito Sekine^2,3, Keisuke Fukushi³, Takuma Kitajima⁴, Baasansuren Gankhurel⁴, Davaadorj Davaasuren⁵, Tuvshin Gerelmaa⁵, Shuukhaaz Ganbat⁴, Daigo Shoji⁶, Yoshio Takahashi¹ (1.Department of Earth and Planetary Science, The University of Tokyo, 2.Earth-Life Science Institute of Tokyo Tech, 3.Institute of Nature and Environmental Technology, Kanazawa University, 4.Division of Earth and Environmental Sciences, Graduate School of Natural Science and Technology, 5.Department of Geography, The National University of Mongolia, 6.Institute of Space and Astronautical Science, Japan Astronautical Exploration Agency)

*Atsushi Tani¹, Kenshiro Moriyama¹ (1.Department of Human Environmental Science, Graduate School of Human Development and Environment, Kobe University)

*Masanori Kanamaru¹, Ryuki Hyodo¹, Tomohiro Usui¹, Tatsuaki Okada¹ (1.Japan Aerospace Exploration Agency)

*Takayuki Ushikubo¹, Makoto Kimura² (1.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, 2.National Institute of Polar Research)

*Tetsuya Yokoyama¹, Ikshu Gautam¹, Yusuke Ohkuma¹, Tsuyoshi Iizuka², The Hayabusa2 initial analysis team “Isotopes and Chemistry” (1.Department of Earth and Planetary Sciences, School of Science, Tokyo Institute of Technology, 2.Department of Earth and Planetary Science, School of Science, The University of Tokyo)