Possible origin of the ULVZs beneath central Pacific: a δlnVs/δlnVp = 2:1 velocity reduction by FeOOHx

Jiuhua Chen1,2, Ruilian Tang2, Jin Liu3, Hokwang Mao4, Bin Yang2, Yan Li5, Vitali B Prakapenka6, Yue Meng7 and Jinyuan Yan8, (1)Florida International Univ., Miami, FL, United States, (2)Center for High Pressure Science and Technology, Changchun, China, (3)Center for High Pressure Science & Technology Advanced Research, Beijing, China, (4)Center for High Pressure Science & Technology Advanced Research, Shanghai, China, (5)Jilin University, Changchun, China, (6)University of Chicago, Center for Advanced Radiation Sources, Chicago, IL, United States, (7)HPCAT, X-Ray Science Division, Argonne National Laboratory, Argonne, United States, (8)Lawrence Berkeley National Laboratory, Berkeley, CA, United States