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Plate Tectonics Vocabulary Review

22 Points
Due: Friday, December 14th
Across
Another term for a convergent boundary.
Occurs when the edge of one plate is bent downward as it slides underneath another plate.
Magnetite that is "frozen" in position in ancient ocean rocks. Indicates the position of the north pole at the time of rock cooling.
Mechanism that creates new ocean floor.
Most divergent plate boundaries are located along the crests of these features.
Composed of the Earth's crust and the upper most part of the mantle.
Surface expression of a mantle plume.
African geographic feature formed by a divergent plate boundary.
Plate boundaries that move apart.
Plate boundaries that move together.
Earth's strong, outer layer; makes up the tectonic plates.
Island chain formed as a result of a "hot spot."
A cylindrically shaped upwelling of hot rock
Forms at the crest of an ocean ridge.
Down
North American example of a continental volcanic arc.
Plate boundaries that grind past each other.
Formed when one ocean plate slides beneath another. An example lies off the coast of Peru and Chile.
North American example of a volcanic island arc.
Rocks whose magnetism is the opposite of the current magnetic field.
Another term for a divergent boundary.
Asian mountain chain formed by a continental-continental convergent plate boundary.
This force occurs in the mantle, where warm, buoyant rocks rise and cool, dense rocks sink; is the underlying driving force of plate tectonics.
Proposed supercontinent consisting of all of Earth's landmasses.