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Author Question: Explain how it is possible for weathering to take place far below the surface of bedrock. What ... (Read 20 times)

hubes95

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on: Jul 13, 2018
Explain how it is possible for weathering to take place far below the surface of bedrock.
 
  What will be an ideal response?

Question 2

Why isn't the Grand Canyon of the Colorado simply a product of the erosion by the river?
 
  What will be an ideal response?


mirabriestensky

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Reply #1 on: Jul 13, 2018
Answer to Question 1

Answer: Weathering penetrates into rock through various openings into which water and atmospheric gases can move. They are pores, joints, faults, etc.

Answer to Question 2

Answer: As the river has cut downward a mile, the canyon sides have been kept steep by a series of caprock layers. these have worn back at a much greater rate than the river has cut downward so the width of the canyon is over 15 km.


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