A contribution to physico-chemical modeling of component partition processes in magmas during phase transitions

The two key steps in phase diagram modeling includes two are development of a solution model and determination of solution parameters. The latter can be aggravated by the inadequacy of phase diagram domains when interaction parameters determined for one region of the phase diagram are invalid for another region. The existence of such a phenomenon was demonstrated by the albite-sodium fluoride melting diagram. It was shown that this inadequacy was incorporated into the model of subregular solutions.