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Updated: Jun 27, 2026

Metal-silicate Partitioning at High Pressure and Temperature: Experimental Methods and a Protocol to Suppress Highly Siderophile Element Inclusions
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Postperovskite phase equilibria in the MgSiO3-Al2O3 system

Jun Tsuchiya1, Taku Tsuchiya

  • 1Geodynamics Research Center, Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan.

Proceedings of the National Academy of Sciences of the United States of America
|November 28, 2008
PubMed
Summary

Aluminum oxide (Al2O3) in magnesium silicate (MgSiO3) slightly lowers the postperovskite transition pressure. This influences seismic discontinuities in Earth's deep mantle, particularly the D'' layer.

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