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Unraveling the Power of Plate Tectonics: A Journey Through Earth's Dynamic Movements

Delve into the theory of plate tectonics and the forces behind plate motion. Explore seismic events like the Chilean earthquake and Haiti 2010 quake. Learn about sea-floor spreading, continental drift, and plate boundaries through a compelling flash presentation. Understand subduction zones, rift valleys, and transform plate boundaries. Discover how convection drives the perpetual dance of tectonic plates on Earth's lithosphere.

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Unraveling the Power of Plate Tectonics: A Journey Through Earth's Dynamic Movements

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  1. Theory of Plate Tectonics

  2. Power of Plate Motion • Chilean Earthquake • Chile Quake Poses Possible Hawaii Tsunami Threat • Major Earthquake in Haiti 2010

  3. A New Theory • Sea-floor spreading supported Wegener’s Continental Drift • How do we explain Sea-floor spreading and Continental Drift? • Plate Tectonics

  4. Plate Tectonics • Theory that the Earth’s lithosphere is divided into tectonic plates that move on top of the asthenosphere • Plate movement

  5. Convection • Hot material rises while cool material sinks • Cool material is dense • The motion of sinking and rising material drags the tectonic plate away from mid-ocean ridge • Flash Presentation

  6. Tectonic Plate Boundaries • Convergent • Divergent • Transform

  7. Convergent Plate Boundaries • When two plates push into each other • Classification based on crust: • Continental/Continental • Continental/Oceanic • Oceanic/Oceanic

  8. Subduction Zones • Region where the oceanic plate sinks into the asthenosphere • Volcanic formations frequently occur • Formed at Convergent Boundary • Continental/oceanic • Oceanic/oceanic • Ocean Trenches = feature of boundary

  9. Divergent Plate Boundary • Two plate move away from each other • Where new oceanic lithosphere forms • Can form on land as well: rift valley • Example is mid-ocean ridge

  10. Transform Plate Boundary • Two plates slide past each other horizontally • San Andreas Fault is example

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