The distinctly high sound velocities ofδ-(Al0.956Fe0.044)OOH at 20–25 GPa may contribute to the seismic anomalies observed at～560–680 km depths in the cold and stagnant slab beneath Izu-Bonin and/or Korea. Furthermore, the VS ofδ-(Al0.956Fe0.044) OOH is about 10% and 4%–12% ...
The effect of iron on the sound velocities of δ-AlOOH up to 135 Gpa[J]. Geoscience Frontiers, 2021, 12(2): 937-946. DOI: 10.1016/j.gsf.2020.08.012 Citation: Xiaowan Su, Chaoshuai Zhao, Chaojia Lv, Yukai Zhuang, Nilesh Salke, Liangxu Xu, Hu Tang, Huiyang Gou, Xiaohui Yu, Qiang...
Brillouin light scattering and X-ray diffraction measurements were conducted on δ-(Al0.956Fe0.044)OOH up to 135 GPa in DACs.The incorporation of ~5 mol% FeOOH increases the volume of δ-AlOOH by ~1% and decreases the Vs by ~5% at high pressure.So...