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Author Question: Compare and contrast the formation of accretionary wedges and the process of subduction erosion. ... (Read 52 times)

piesebel

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on: Jul 15, 2018
Compare and contrast the formation of accretionary wedges and the process of subduction erosion.
 
  What will be an ideal response?

Question 2

Explain the process of accretionary wedge.
 
  What will be an ideal response?


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sailorcrescent

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

Answer: Both will involve convergent plate boundaries. With an accretionary wedge, sediments will be scraped off the subducting plate and build up along the margin between the plates, wedging them apart. However, with subduction erosion, the sediments are not accumulating in a wedge. They are transported into the mantle on the subducting plate.

Answer to Question 2

Answer: Sediments settle on the shallow ocean floor. This oceanic plate is subducting beneath a continental plate, which scrapes off the sediments to create a wedge.


piesebel

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Reply 2 on: Jul 15, 2018
Gracias!

kswal303

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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