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Author Question: Which type of metamorphism occurs exclusively at lower pressures? A) Regional metamorphism occurs ... (Read 70 times)

Deast7027

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on: Jul 16, 2018
Which type of metamorphism occurs exclusively at lower pressures?
 
  A) Regional metamorphism occurs exclusively at lower pressures.
  B) Contact metamorphism occurs exclusively at lower pressures.
  C) Hydrothermal metamorphism occurs exclusively at lower pressures.
  D) All three types of metamorphism occur exclusively at lower pressures.

Question 2

How might hydrothermal ore genesis occur?
 
  A) Hot seawater rushes through porous rocks and crystallizes on contact with the rocks.
  B) Cold seawater meets hot circulating hydrothermal fluids and precipitation occurs.
  C) Two rock masses meet at a hydrothermal vent and the heat of the water dissolves ions from both masses. They recrystallize when they are carried to cooler water.
  D) Hot water from a hydrothermal vent dissolves ions from one rock mass and reprecipitates them as ore in cooler water.


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Viet Thy

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

You just saved me a lot of time. ;)

Answer to Question 2

Answer: B


Deast7027

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Reply 2 on: Jul 16, 2018
Excellent

emsimon14

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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