Phase relations in the system fayalite–magnetite at high pressures and temperatures

@article{Woodland2000PhaseRI,
  title={Phase relations in the system fayalite–magnetite at high pressures and temperatures},
  author={Alan B. Woodland and Ross J Angel},
  journal={Contributions to Mineralogy and Petrology},
  year={2000},
  volume={139},
  pages={734-747}
}
Abstract The phase relations in the Fe2SiO4–Fe3O4 binary system have been determined between 900 and 1200 °C and from 2.0 to 9.0 GPa. At low to moderate pressures magnetite can accommodate significant Si, reaching XFe2SiO4=0.1 and 0.2 at 3.0 and 5.0 GPa respectively, with temperature having only a secondary influence. At pressures below 3.5 GPa at 900 °C and 2.6 GPa at 1100 °C magnetite-rich spinel coexists with pure fayalite. This assemblage becomes unstable at higher pressures with respect to… CONTINUE READING

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