Refinement of enthalpy measurement of MgSiO3 perovskite and negative pressure-temperature slopes for perovskite-forming reactions

Details Refinement of enthalpy measurement of MgSiO3 perovskite and negative pressure-temperature slopes for perovskite-forming reactions Refinement of enthalpy measurement of MgSiO3 perovskite and negative pressure-temperature slopes for perovskite-forming reactions

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20.1839a&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 17, p. 1839-1842.

Physics

58

Earth Mantle, Enthalpy, Perovskites, Pressure Dependence, Pyroxenes, Temperature Dependence, Calorimeters, Phase Transformations

Scientific paper

The enthalpy of MgSiO3 perovskite has been remeasured more precisely and
the transition boundaries from ilmenite to perovskite and from spinel to
perovskite + periclase have been calculated. The slopes of the
boundaries are discussed in the light of recent simulation studies of
the mantle convection.

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