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Author Question: Which of the following pairs of index minerals do not overlap in metamorphic grade? A) chlorite ... (Read 122 times)

anjilletteb

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on: Jul 16, 2018
Which of the following pairs of index minerals do not overlap in metamorphic grade?
 
  A) chlorite and pyroxene
  B) biotite and garnet
  C) staurolite and kyanite
  D) amphibole and sillimanite

Question 2

If a rock containing andalusite and sillimanite were to undergo an increase in pressure, what must happen to temperature in order for that rock to continue to have stable andalusite and sillimanite?
 
  A) temperature must increase
  B) temperature must decrease
  C) temperature must stay the same
  D) It is impossible for it to continue to have stable andalusite and sillimanite.


Chocorrol77

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


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