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Plate Tectonics
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Modern Earth
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Pangea (240 mya)
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Earth’s Interior
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Effect of chemical differentiation
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Spreading center and subduction zone
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Global Tectonics Partial Melting
Partial melting is responsible for evolving mantle rock… among other things this gives us continents.
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Oceanic lithosphere – general chemistry is Fe, Mg rich in the form of a rock “Basalt” Continental lithosphere – general chemistry is Si, O, Al, Na, K rich…in the form of a rock “Granite”
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“Ridge Push” “Slab Pull” Plate Movement “Plate Drag”
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Main Types of Plate Motion
Convergent Divergent Transform Main Types of Plate Motion
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Five types of plate boundaries
Divergent Transform Convergent Ocean-Ocean Ocean-Continent Continent-Continent
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Five types of plate boundaries
Divergent Transform Convergent Ocean-Ocean Ocean-Continent Continent-Continent
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Divergent Boundary
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Convergent Boundary
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Transform Boundary
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Hot Spot
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Origin of India and the Himalayan mountains
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The Rock Cycle
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Igneous Rocks
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Sedimentary Rocks
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Metamorphic Rocks
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