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. 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.
Subject: Geoscience:Geology:Igneous and Metamorphic Petrology:Volcanology, Geoscience:Geology:Geochemistry, Geochemistry:Radioisotopes, Geoscience:Geology:Igneous and Metamorphic Petrology:Geochemistry, Igneous Associations and Tectonic Settings, Geoscience:Geology:Tectonics, Igneous and Metamorphic Petrology:PTt Relationships, Geoscience:Geology:Geochemistry:Elements, Geoscience:Geology:Mineralogy:Phase Equilibria/Thermodynamics Resource Type: Audio/Visual:Images/Illustrations, Course Information:Course Site:Course Notes, Audio/Visual:Maps Grade Level: Graduate/Professional, College Upper (15-16), 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: Volcanic Rocks Course Type: Upper Level:Petrology, Mineralogy, Geochemistry Geologic Setting: Continental Crust, Oceanic Crust, Mantle Topics: Solid Earth:Mineralogy:Phase Equilibria/Thermodynamics, Solid Earth:Petrology:PTt Relationships, Solid Earth:Geochemistry:Elements, Solid Earth:Petrology:Igneous Associations and Tectonic Settings, Solid Earth:Geochemistry:Radioisotopes, Solid Earth, Chemistry/Physics/Mathematics, Solid Earth:Geochemistry, Petrology:Volcanology, Geochemistry Solid Earth Processes: Volcanism Tectonic Setting: Continental Arc, Island Arc
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