Title

Thermoelastic Properties of MgSiO3-Perovskite: Insights on the Nature of the Earth's Lower Mantle

Document Type

Article

Publication Date

1-9-2004

Abstract

The elastic constants and acoustic velocities of MgSiO perovskite, the most abundant mineral of the earth's lower mantle (LM), were discussed. Earth model indicated that the top of the LM behaved as typical aggregate of pyrolitic composition. The elastic constants were used to predict acoustic velocity of LM mineral aggregates. Results show that the values of the predicted properties were independent of the order used in the finite strain expansion of the free energy. s

Publication Source (Journal or Book title)

Physical Review Letters

First Page

185011

Last Page

185014

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