Phase Diagrams

This site is a set of lecture notes from a petrology class by Dr. Susan DeBari at Western Washington University. The lectures explain the process of mineral crystallization and phase relationships as a function of temperature and pressure. Topics covered include the phase rule, one-component systems (unary), two-component systems (binary), and three-component systems (ternary), as well as equilibrium crystallization, equilibrium melting, fractional crystallization, and fractional melting. Diagrams and definitions are integrated into the lecture notes. Educational levels: Undergraduate lower division, Undergraduate upper division