Deformation of olivine-orthopyroxene aggregates at high pressure and temperature: Implications for the seismic properties of the asthenosphere

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• 作者：Vincent Soustelle^a ; ^{vincent.soustelle@cug.edu.cn} ; Geeth Manthilake^b
• 关键词：Olivine ; Orthopyroxene ; High pressure ; Deformation experiments ; CPO ; Deformation mechanism ; Seismic properties
• 刊名：Tectonophysics
• 出版年：2017
• 出版时间：2 January 2017
• 年：2017
• 卷：694
• 期：Complete
• 页码：385-399
• 全文大小：3919 K
• 卷排序：694

文摘

Olivine-orthopyroxene deformation experiments at high-pressure high temperature Olivine CPO vary as a function of the volume of secondary phases. Diffusion creep contribution increases with the volume of secondary phases. Vsh/Vsv in asthenosphere dominated by horizontal flow explained by all compositions Vsh/Vsv in asthenosphere dominated by vertical flow only explained by pyroxene-rich compositions