Hydrogen-bearing iron peroxide and the origin of ultralow-velocity zones

Jin Liu, Qingyang Hu, Duck Young Kim, Zhongqing Wu, Wenzhong Wang, Yuming Xiao, Paul Chow, Yue Meng, Vitali B. Prakapenka, Ho-Kwang Mao () and Wendy L. Mao ()
Additional contact information
Jin Liu: Stanford University
Qingyang Hu: Stanford University
Duck Young Kim: Center for High Pressure Science and Technology Advanced Research
Zhongqing Wu: Laboratory of Seismology and Physics of Earth’s Interior, School of Earth and Space Sciences, University of Science and Technology of China
Wenzhong Wang: Laboratory of Seismology and Physics of Earth’s Interior, School of Earth and Space Sciences, University of Science and Technology of China
Yuming Xiao: High Pressure Collaborative Access Team, Geophysical Laboratory, Carnegie Institution of Washington
Paul Chow: High Pressure Collaborative Access Team, Geophysical Laboratory, Carnegie Institution of Washington
Yue Meng: High Pressure Collaborative Access Team, Geophysical Laboratory, Carnegie Institution of Washington
Vitali B. Prakapenka: Center for Advanced Radiation Sources, University of Chicago
Ho-Kwang Mao: Center for High Pressure Science and Technology Advanced Research
Wendy L. Mao: Stanford University

Nature, 2017, vol. 551, issue 7681, 494-497

Abstract: A reaction between iron and water at the high pressure and temperature of the lowermost mantle is described that produces hydrogen-bearing iron peroxide, which has the properties expected of the ultralow-velocity zones at Earth’s core–mantle boundary.

Date: 2017
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DOI: 10.1038/nature24461

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