gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1994.58A.1.226 Disappearance of the Liquid-Liquid Miscibility Gap in the System CaO-MgO-SiO₂ at High Pressure Hudon P. Baker D. R. Department of Earth and Planetary Sciences, McGill University, 3450 University Street, Montreal, Quebec, H3A 2A7, Canada Pelton A. D. Wu P. Centre for Research in Computational Thermochemistry, Ecole Polytechnique de Montreal, P.O. Box 6079, Station A, Montreal, QC, H3C 3A7, Canada 8 1994 58A 1 434 435 Copyright © 1994, The Mineralogical Society 1994