Seismic anisotropy of the D″ layer induced by (001) deformation of post-perovskite

The source of the anisotropic layer (D'' layer) at the bottom of the lower mantle remains unclear. Here, using high pressure and temperature experiments, the authors find that seismic anisotropy observed at the D'' layer is caused by 50% deformation of the minerals post-perovskit...

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Autores principales: Xiang Wu, Jung-Fu Lin, Pamela Kaercher, Zhu Mao, Jin Liu, Hans-Rudolf Wenk, Vitali B. Prakapenka
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/d8982ddc235a46518ee587199935142e
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Sumario:The source of the anisotropic layer (D'' layer) at the bottom of the lower mantle remains unclear. Here, using high pressure and temperature experiments, the authors find that seismic anisotropy observed at the D'' layer is caused by 50% deformation of the minerals post-perovskite and ferropericlase.