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Raman spectra of MgSiO3·10% Al2O3-perovskite at various pressures and temperatures

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1995

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Abstract

Variations of Raman spectra of MgSiO3·10% Al2O3-perovskite were investigated up to about 270 kbar at room temperature and in the range 108-425 °K at atmospheric pressure. Like MgSiO3-perovskite, the Raman frequencies of MgSiO3·10% Al2O3-perovskite increase nonlinearly with increasing pressure and decrease linearly with increasing temperature within the experimental uncertainties and the range investigated. A comparison of these data with those of MgSiO3-perovskite suggests that MgSiO3·10% Al2O3-perovskite is slightly more compressible than MgSiO3-perovskite, and that the volume thermal expansion for MgSiO3·10% Al2O3-perovskite is also slightly greater than that for MgSiO3-perovskite.

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https://dspace-test.anu.edu.au/handle/1885/733746960

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DevOps Pure Testing

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Physics and Chemistry of Minerals

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Article

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DOI

10.1007/BF00209377

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