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Author Question: Describe regional metamorphism. Where does it take place? What will be an ideal ... (Read 34 times)

folubunmi

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on: Jul 15, 2018
Describe regional metamorphism. Where does it take place? What will be an ideal response?

Question 2

Describe metamorphism in an aureole. Draw and label a picture of metamorphism surrounding a
  granite pluton to show the zones that might surround an intrusion. What will be an ideal response?



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emsimon14

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Reply #1 on: Jul 15, 2018
Answer to Question 1

Regional metamorphism takes place over a large area and is caused by tremendous heat, pressure, and
deformation in the deeper portions of the crust. The intensity of metamorphism varies from higher to
lower, so a gradation in metamorphism is recognized in the resulting rocks. Regional metamorphism
takes place along convergent plate boundaries during convergence and subduction.



Answer to Question 2

The country rock closest to the intrusion is the most metamorphosed and exhibits the greatest changes.
Metamorphism decreases with distance from the intrusion.



folubunmi

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Reply 2 on: Jul 15, 2018
Great answer, keep it coming :)

rachel

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Reply 3 on: Yesterday
Excellent

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