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Plate Tectonics

TermDefinition
Seafloor Spreading The process by which new oceanic crust forms when magma rises up and solidifies at the mid-ocean ridge
Subduction When 1 tectonic plate sinks below another
Convergent Boundaries Where 2 plates collide
Divergent Boundaries Where 2 plates divide
Transform Boundaries Where 2 plates slide
Lithosphere The layer made up of the crust and the uppermost part of the mantle
Asthenosphere The upper layer of Earth’s mantle below the Lithosphere
Pangaea The single huge supercontinent that existed millions of years ago when all of Earth’s continents were joined together
Continental Drift The theory that all of Earth’s continents were once joined together into a single large landmass and then started drifting away from each other
Tectonic Plates Large pieces of the Lithosphere that move on top of the Asthenosphere
Created by: callen2023
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