Layered Mafic Intrusions

John Winter, Department of Geology

This PowerPoint presentation is part of the Whitman College petrology course. This 50-slide presentation introduces layered mafic intrusions around the world. The chapter discusses various layered mafic complexes in cross section and plan view, and also describes stratigraphy within the complexes. The presentation further describes processes within the complexes, such as crystallization, differentiation, layering, convective overturn, in-situ processes, compositional convection, and density currents. 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

Subject: Geoscience:Geology:Mineralogy:Phase Equilibria/Thermodynamics, Geoscience:Geology:Geochemistry, Igneous and Metamorphic Petrology:Igneous Associations and Tectonic Settings, Thermodynamics and Phase Equilibria, Geoscience:Geology:Tectonics, Geochemistry:Phase Equilibria/Thermodynamics, Geoscience:Geology:Igneous and Metamorphic Petrology:Igneous Processes
Resource Type: Course Information:Course Site:Course Notes, Audio/Visual:Images/Illustrations
Grade Level: College Upper (15-16), Graduate/Professional, College Lower (13-14)
Theme: Teach the Earth:Course Topics:Geochemistry, Teach the Earth:Teaching Topics:Plate Tectonics, Teach the Earth:Course Topics:Petrology, Mineralogy
Classes of Earth Materials: Plutonic Rocks
Course Type: Upper Level:Petrology, Mineralogy
Geochemistry Applications: Chemical Differentiation:Earth
Topics: Solid Earth:Geochemistry:Phase Equilibria/Thermodynamics, Solid Earth:Geochemistry, Solid Earth, Chemistry/Physics/Mathematics, Solid Earth:Mineralogy:Phase Equilibria/Thermodynamics, Solid Earth:Petrology:Igneous Processes, Thermodynamics and Phase Equilibria, Igneous Associations and Tectonic Settings
Solid Earth Processes: Plutonism, Volcanism, Alteration (Hydrothermal)Keywords: modal layering, phase layering, cryptic layering, rhythmic layering, intermittent layering, compositional convection, vortex model