Island Arc Magamatism

John Winter, Department of Geology

This 50 slide PowerPoint presentation introduces the basic structural facets of an island arc system. Magma series (tholeiitic, alkaline, calc-alkaline) and differentiation within magma series are related to the major elements. Other trends in magma series (spatial, temporal, trace element, isotope) are presented. Petrogenesis of magmas is illustrated in terms of mantle flow, rate of subduction and age of the subducting slab and subduction zone. Pressure-temperature-time paths are used as instructive tools. 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:Igneous and Metamorphic Petrology:Volcanology, Geoscience:Geology:Mineralogy:Phase Equilibria/Thermodynamics, Geoscience:Geology:Geochemistry, Igneous and Metamorphic Petrology:Geochemistry, Igneous Associations and Tectonic Settings, Geoscience:Geology:Tectonics, Igneous and Metamorphic Petrology:PTt Relationships, Geoscience:Geology:Geochemistry:Elements, Radioisotopes
Resource Type: Course Information:Course Site:Course Notes, Audio/Visual:Maps, Images/Illustrations
Grade Level: Graduate/Professional, College Lower (13-14), College Upper (15-16)
Classes of Earth Materials: Volcanic Rocks
Course Type: Upper Level:Geochemistry, Petrology, Mineralogy
Geologic Setting: Continental Crust, Mantle, Oceanic Crust
Topics: Solid Earth:Geochemistry:Radioisotopes, Elements, Solid Earth:Geochemistry, Solid Earth, Chemistry/Physics/Mathematics, Solid Earth:Mineralogy:Phase Equilibria/Thermodynamics, Solid Earth:Petrology:PTt Relationships, Volcanology, Geochemistry, Igneous Associations and Tectonic Settings
Solid Earth Processes: Volcanism
Tectonic Setting: Continental Arc, Island Arc