*Maxim Ballmer^1,2、Christine Houser¹、John W. Hernlund¹、Renata M. Wentzcovich^1,3,4、Kei Hirose¹ (1.Earth-Life Science Institute, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan、2.Institut für Geophysik, ETH Zürich, Sonneggstrasse 5, 8092 Zurich, Switzerland、3.Department of Applied Physics and Applied Mathematics, Columbia University, New York, USA、4.Department of Earth and Environmental Sciences, Columbia University, Lamont-Doherty Earth Observatory, Palisades NY, USA)