Kimberlites, carbonatites, peridotites and silicate-carbonate liquid immiscibility explained in parts of the system CaO-(Na2O+K2O)-(MgO+FeO)-(SiO2+AI2O3)-CO2 - Wyllie, P.J.; Lee, W.J. (International Kimberlite Conference: Extended Abstracts, 1998)