*Charles LE LOSQ^1,2、Bjorn O. Mysen¹、Celia Dalou³、Pamela Arriagada^4,5、George D. Cody¹ (1.Geophysical Laboratory, Carnegie Institution of Washington, USA、2.Research School of Earth Sciences, The Australian National University, Australia、3.Department of Earth Sciences, University of Minnesota, USA、4.Department of Terrestrial Magnetism, Carnegie Institution of Washington, USA、5.University of Washington, USA)