Diopside and Anorthite: Supposedly a Binary Eutectic System
摘要
In this chapter, we introduce the study of phase equilibrium diagrams as models of natural rocks. The system to be described is simple, yet it furnishes a neat example of what may go wrong with a model when a mineral chooses not to have the idealized composition you so hopefully expected it would. This complication, fortunately, increases rather than decreases the relevance of the model system to natural basalts.