Elasticity of Single-Crystal Superhydrous Phase B at Simultaneous High Pressure-Temperature Conditions: Implication for the Low-Velocity Layers in the Topmost Lower Mantle

Xinyang Li1, Zhu Mao1, Ningyu Sun1, Yifan Liao2, Shuangmeng Zhai3, Yi Wang1, Huaiwei Ni4, Jingyun Wang4, Sergey N Tkachev5 and Jung-Fu Lin6, (1)University of Science and Technology of China, Hefei, China, (2)University Science & Technology of China, Hefei, Anhui, China, (3)Chinese Academy of Sciences, Institute of Geochemistry, Guiyang, China, (4)University Science & Technology of China, Hefei, China, (5)University of Chicago, Center for Advanced Radiation Sources, Chicago, IL, United States, (6)University of Texas at Austin, Austin, TX, United States