Post-Perovskite Phase Transition in MgSiO
            <sub>3</sub>

Murakami, Motohiko; Hirose, Kei; Kawamura, Katsuyuki; Sata, Nagayoshi; Ohishi, Yasuo

doi:10.1126/science.1095932

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Post-Perovskite Phase Transition in MgSiO 3

Shared by NobleBlocks on May 7, 2004 • 12:00 AM UTC

Authors:

Motohiko Murakami

Kei Hirose

Katsuyuki Kawamura

Abstract

In situ x-ray diffraction measurements of MgSiO 3 were performed at high pressure and temperature similar to the conditions at Earth's core-mantle boundary. Results demonstrate that MgSiO 3 perovskite transforms to a new high-pressure form with stacked SiO 6 -octahedral sheet structure above 125 gig...

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