Magma Generation
http://www.whitman.edu/geology/winter/Petrology/Ch%2010%20Magma Generation.ppt

John Winter, Department of Geology


This PowerPoint presentation is part of the Whitman College petrology course. The presentation covers the origin of basaltic magmas. Two types of basalt in ocean basins are compared (tholeiitic and alkaline). Composition of mantle-derived magmas and sources of mantle material are listed. Discussion of how the mantle melts, touching on the contribution of volatiles, pressure and composition, is included. The slide show includes figures comparing enriched vs. depleted mantle. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html

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:Geochemistry, Geochemistry:Radioisotopes, Geoscience:Geology:Igneous and Metamorphic Petrology:Igneous Processes, Igneous Associations and Tectonic Settings, Geoscience:Geology:Tectonics, Igneous and Metamorphic Petrology, Geochemistry:Elements, Geoscience:Geology:Mineralogy:Phase Equilibria/Thermodynamics
Resource Type: Course Information:Course Site:Course Notes, Audio/Visual:Images/Illustrations
Grade Level: College Lower (13-14), College Upper (15-16)
Course Type: Upper Level:Geochemistry, Petrology
Geologic Setting: Mantle
Topics: Solid Earth:Geochemistry, Geochemistry:Radioisotopes, Solid Earth, Chemistry/Physics/Mathematics, Solid Earth:Geochemistry:Elements, Solid Earth:Petrology:Igneous Processes, Solid Earth:Mineralogy:Phase Equilibria/Thermodynamics, Solid Earth:Petrology:Igneous Associations and Tectonic Settings, Solid Earth:Petrology
Tectonic Setting: Mid-Ocean Ridge, Oceanic Island