Toward a comprehensive understanding of transition zone seismic discontinuities: A new constraint near the stagnant slab region beneath China

Teh-Ru Alex Song, University College London, Department of Earth Sciences, London, United Kingdom, Xuzhang Shen, Sun Yat-sen University, School of Earth Sciences and Engineering, Guangdong Provincial Key Laboratory of Geodynamics and Geohazards, Zhuhai, China, Lars P Stixrude, University College London, Earth Sciences, London, United Kingdom and Carolina R Lithgow-Bertelloni, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States