Stability of majorite (Mg, Fe)SiO3 at high pressures and 1800 C

Details Stability of majorite (Mg, Fe)SiO3 at high pressures and 1800 C Stability of majorite (Mg, Fe)SiO3 at high pressures and 1800 C

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991e%26psl.102..158o&link_type=abstract

Earth and Planetary Science Letters (ISSN 0012-821X), vol. 102, no. 2, Feb. 1991, p. 158-166.

Computer Science

18

Earth Mantle, High Pressure, High Temperature Tests, Iron Compounds, Magnesium Compounds, Silicates, Chemical Composition, Garnets, Phase Transformations, X Ray Diffraction

Scientific paper

Phase relations were investigated in the MgSiO3-FeSiO3 system to 24 GPa at 1800 C, with particular attention given to the stability field of the garnet phase observed in this system. Results suggest the possibility of existence of an alumina-free tetragonal garnet phase in the harzbergite layer in the descending slab. Cubic garnet was not observed in the ranges of temperature and pressure that were used.

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