Exam 13: Continental Tectonics and the Formation of the Earths Continents

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Where are the Earth's oldest rocks found?

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A

Which of the following statements concerning the basic components of continents is NOT true?

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D

The Blue Ridge province is composed of:

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C

Most of the displaced terranes of North America were accreted to the continent:

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What evidence suggests that the Rocky Mountains were formed by plate convergence?

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What is the geological term for mountain building?

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How was the Atlantic Ocean basin formed?

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Which of the following statements about continental landmasses prior to the formation of Pangaea is NOT true?

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Describe the development of Gondwana and Laurasia into Pangaea.

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The continental shield of North America is composed of:

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What are displaced terranes? Describe and list geographic examples of displaced terranes.

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How thick is the continental crust of North America?

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To qualify as a mountain, at least in geological terms, an area of land must have:

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What is the craton composed of?

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Discuss the development of continental lithosphere.

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Pangaea was formed by the collision of which two landmasses?

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Based on projections of current plate motions, what tectonic events are likely to occur in the future?

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The first landmasses on the Earth were probably:

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Why might subduction resume in the Atlantic Ocean basin?

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What plate motions are expected to occur in the geological future?

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