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Collisions

Plate Tectonics

Subject: 
Environmental Science
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Geology
Plate tectonics
Earth
Continental drift
Seafloor spreading
Tectonics
Subduction
Lithosphere
Mid-Atlantic Ridge
Mid-ocean ridge
Convergent boundary
Tags: 
Plate Tectonics
Collisions
Earth Science

Plate Tectonics .? Theory of how the continents moved apart ( Continental Drift) driven bySeafloor Spreading? .? Tectonics - important motions of Earth?s Crust .? Plates- Make up the crust Tectonic Plates . Crust made up of 12 or so plates study of movement/ formation of these plates Continental Drift .? Theory that all continents are moving across Earth?s surface Evidence: Fossils Glacial Striations/Grooves Rock deposits Jigsaw puzzle of Modern Continents Creation Of Continental Drift .? Alfred Wegener - 1912 .? Continents were together at one point ---> ? Pangea? -- ?All Earth? .? Over millions of years ---> continents split apart .? Wegener discredited because he was a? meteorologist and he could not explain a force for moving plates
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