Petrology, Chapter 24: Metamorphic Mineral Assemblages

John Winter, Department of Geology

This 81-slide PowerPoint presentation reviews the phase rule in terms of metamorphic systems, using the brucite-periclase system as an example. Binary and ternary chemographic diagrams are used to explain compatibility in mineral assemblages. The presentation covers ternary diagrams for complicated systems, ACF and AKF diagrams, projections from apical phases, and J.B. Thompson's A(K)FM diagram is used as an alternative tool to apply to pelitic rocks. Lastly, a set of rules is laid out to help choose the appropriate chemographic diagram. This resource is part of the Teaching Petrology collection.

Part of the Cutting Edge collection. The NAGT/DLESE On the Cutting Edge project helps geoscience faculty stay up-to-date with both geoscience research and teaching methods.

Cutting Edge
This resource is referenced here:
Subject: Geoscience:Geology:Geochemistry, Mineralogy:Phase Equilibria/Thermodynamics, Geoscience:Geology:Igneous and Metamorphic Petrology:Thermodynamics and Phase Equilibria, Metamorphic Rocks, Geoscience:Geology:Geochemistry:Phase Equilibria/Thermodynamics, Geoscience:Geology:Igneous and Metamorphic Petrology:Metamorphic Rock Suites and Facies
Resource Type: Course Information:Course Site:Course Notes, Audio/Visual:Images/Illustrations
Grade Level: College Lower (13-14), College Upper (15-16), Graduate/Professional
Course Type: Upper Level:Mineralogy, Petrology
Solid Earth Processes: Metamorphism
Theme: Teach the Earth:Course Topics:Petrology, Mineralogy, GeochemistryKeyword: solid solution