6. A mass of granite is in contact with a layer of sandstone. Using a principle described in this chapter, explain how you might determine whether the sandstone was deposited on top of the granite or the granite was intruded from below after the sandstone was deposited.

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Question: 6. A mass of granite is in contact with a layer of sandstone. Using a principle described in this chapter, explain how you might determine whether the sandstone was deposited on top of the granite or the granite was intruded from below after the sandstone was deposited.

Answer: The Correct Answer is Check to see if either rock mass contains inclusions of the other. The rock layer containing the inclusions would be the younger of the two. Also, evidence of contact metamorphism at the base of the sandstone would indicate that it was present before the granite was intruded.

Reason Explained

The correct is Check to see if either rock mass contains inclusions of the other. The rock layer containing the inclusions would be the younger of the two. Also, evidence of contact metamorphism at the base of the sandstone would indicate that it was present before the granite was intruded.

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