lecture2_6_plateTectonics&rockCycles_posted

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Unformatted text preview: GEO 106 DSM Lecture 2-5 GEO 106 Earth Systems Science II Global Climate Change Lecture 2-6 Plate tectonics & rock cycles Readings: Chapter 7 GEO 106 DSM Lecture 2-5 Important Concepts: 1. Earths crust is comprised of moving plates 2. Oceanic crust is denser than continental crust 3. Plate divergence creates new rocks or new seas; convergence creates volcanoes and mountains 4. Sedimentary rocks may contain organic carbon, which is recycled when ocean crust sinks below continental crust 5. Uplift of continental rocks exposes them to weathering, a process that reduced atmospheric CO 2 6. Locations of continental plates affects climate GEO 106 DSM Lecture 2-5 1. Plate tectonics a) Earths crust i) organized into 20... ii) continental crust is- felsic rocks rich in iii) oceanic crust is- mafic rocks rich in b) Two kinds of crustal plates i) oceanic plates are ii) continental plates area fused to GEO 106 DSM Lecture 2-5 1. Plate tectonics contd c) Plate divergence...
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lecture2_6_plateTectonics&rockCycles_posted - GEO...

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