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Author Question: What are metamorphic zones based on? How are rocks within the same metamorphic zone similar to each ... (Read 39 times)

s.tung

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on: Jul 15, 2018

What are metamorphic zones based on? How are rocks within the same metamorphic zone similar to
  each other? What will be an ideal response?



Question 2

What is a metamorphic facies, and how are metamorphic facies named? What will be an ideal response?


gabrielle_lawrence

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

Metamorphic zones are based on index minerals and are areas of rock that all have similar grades of
metamorphism, that is, they have all experienced the same intensity of metamorphism.



Answer to Question 2

A metamorphic facies is a group of metamorphic rocks whose minerals all formed under a particular
range of temperatures and pressures. Each facies is named after its most characteristic rock or mineral



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