Transfer of SiO2 from the core to the mantle and its fate in the Earth in early and present times
George R Helffrich1, Maxim Ballmer2, Guillaume Morard3, Koichiro Umemoto1, Ryuichi Nomura4, Ryosuke Sinmyo5, Anat Shahar6, Stephane Labrosse7, John W Hernlund8 and Kei Hirose9, (1)Tokyo Institute of Technology, Earth-Life Science Institute, Tokyo, Japan, (2)ETH Zürich, Department of Earth Sciences, Zürich, Switzerland, (3)Sorbonne Université - MNHN - CNRS - IMPMC, Paris, France, (4)Kyoto University, Kyoto, Japan, (5)University of Bayreuth, Bayreuth, Germany, (6)Carnegie Institution of Washington, Geophysical Laboratory, Washington, DC, United States, (7)Ecole Normale Supérieure Lyon, Lyon, France, (8)Earth-Life Science Institute, Meguro, Tokyo, Japan, (9)Tokyo Inst Tech, Tokyo, Japan