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earth struction

unit 6

TermDefinition
Pangaea the super continent that formed 300 million years ago and that began to break up 200 million years ago (
Sea Floor Spreding the process by which new oceanic lithosphere sea floor forms when magma rises to Earth’s surface at mid-ocean ridges and solidifies, as older, existing sea floor moves away from the ridge
plate tectonics the theory that explains how large pieces of the lithosphere, called plates, move and change shap
tectonic plate the edge between two or more plates classified as divergent, convergent, or transform by the movement taking place between the plate
convergent the boundary between tectonic plates that are colliding
Created by: Ayah lightbourne
 

 



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