Exam 3: Earth Structure and Plate Tectonics

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A(n) ____ is a very large column of superheated mantle that originates at the boundary of the core and mantle.

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Paleomagnetism was the confirmation needed to show historical plate movements.

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Paleomagnetic data has been used to:

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The Earth's core only effects S wave behavior.

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What did Harry Hess and Robert Dietz suggest the cause of the continents moving was?

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What substance was able to show previous orientations of Earth's magnetic field?

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Discuss the composition and characteristics of Earth's layers. How was the composition of the mantle and core determined?

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What is an ophiolite a result of?

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Ridges, rifts, and rises are common features along divergent plate boundaries.

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What process involves the radiation of internal heat to the surface?

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