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Author Question: Why are older rocks more likely to be found on the continents than on the ocean floor? What will ... (Read 78 times)

kellyjaisingh

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on: Jul 29, 2018
Why are older rocks more likely to be found on the continents than on the ocean floor?
 
  What will be an ideal response?

Question 2

Magnetic surveys of the ocean floors reveal
 
  A) alternating stripes of normal and reversed polarity paralleling the mid-Atlantic ridge.
  B) thin oceanic crust composed of basaltic rocks.
  C) that reversed polarity is rare.
  D) all of the above.


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tandmlomax84

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: Mid-ocean rifts are places of rock formationnew rock; and subduction zones are places where oceanic crust is pulled downward to be recycled. Continental crust is too buoyant for subduction to occur, so on the continents older can be found

Answer to Question 2

Answer: A


kellyjaisingh

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Reply #2 on: Jul 29, 2018
Thanks


tandmlomax84

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Reply #3 on: Jul 29, 2018
Welcome :)


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