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Phase relations at 0.1 MPa over a range of oxygen fugacities (fO 2 ) from 1130 to 1350 °C on a volatile-free synthetic kimberlite analog composition show the crystallization sequence of olivine, monticellite, akermanite, perovskite, clinopyroxene, ulvopsinel and kirschteinite. At low pressures kimberlite liquids show limited change in Ca, Si, Al and Ti, but a large variation in Fe/Mg from...
The dissolution of mantle-derived garnet in H 2 O-bearing kimberlite melt was investigated experimentally to provide some constraint on the survival of garnet xenocrysts commonly found in kimberlites. Garnet dissolution was determined by measuring the rate of radius change of garnet spheres in synthetic kimberlite melt above its liquidus as a function of both temperature and pressure. To apply...
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