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Plate Tectonics
Inside Earth: Chapter One, Section Five
Term | Definition |
---|---|
plate | a section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust. |
scientific theory | a well-tested concept that explains a wide range of observations. |
plate tectonics | the theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle. |
transform | a plate boundary where two plates move past each other in opposite directions. |
divergent | a plate boundary where two plates move away from each other. |
convergent | a plate boundary where two plates move towards each other. |
rift valley | a deep valley that forms where two plates move apart. |