Seismic Detection of Post-perovskite Inside the Earth
Seismic Detection of Post-perovskite Inside the Earth
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DOI：
10.1007/978-3-319-15627-9_13
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发表时间：
2015-04
期刊：
影响因子：
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通讯作者：
L. Cobden;C. Thomas;J. Trampert
中科院分区：
文献类型：
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作者：
L. Cobden;C. Thomas;J. Trampert
Since 2004, we have known that perovskite, the most abundant mineral in the lower mantle , has the capacity to transform to a denser structure, post-perovskite, if subjected to sufficiently high temperature and pressure . But does post-perovskite exist inside the Earth? And if it does, do we have the resources to locate it seismically? In this chapter, we present an overview of what we know about the perovskite-to-post-perovskite phase transformation from mineral physics, and how this can be translated into seismic structure. In light of these constraints, we evaluate the current lines of evidence from global and regional seismology which have been used to indicate that post-perovskite is likely present in the deep mantle.
