Themes of the Day:

• Equilibrium Crystallization in Ternary Systems (Wrap-up & Review)
• Equilibrium Melting in Binary Systems
• Fractional Melting in Binary Systems

Equilibrium Crystallization in Ternary Systems

• Combining three binary phase diagrams into one ternary phase diagram
• (Simple) Eutectic System (with no solid solution): Diopside-Anorthite-Forsterite - showing temperature contours
• Let's crystallize the Diopside-Anorthite-Forsterite system!
• Forsterite-Anorthite-Quartz
• Bowen's Experimental Evidence for Crystal Settling
• Compositie Stratigraphic Section of a Layereed Mafic Intrusion
• Gabbro Tetrahedra - Diopside-Anorthite-Forsterite-Quartz system!

Equilibrium Melting in Binary Systems

• (Simple) Eutectic System (with no solid solution): Diopside-Anorthite
• Peritectic System (incongruent melting) - Forsterite-SiO₂
• Complete Solid Solution System - Anorthite-Albite, Forsterite-Fayalite
• Partial Solid Solution System - Albite-Orthoclase - at differing pressures

Fractional Melting in Binary Systems

• (Simple) Eutectic System (with no solid solution): Diopside-Anorthite
• Peritectic System (incongruent melting) - Forsterite-SiO₂
• Complete Solid Solution System - Anorthite-Albite, Forsterite-Fayalite
• Partial Solid Solution System - Albite-Orthoclase - at differing pressures