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Author Question: What is the difference between a graben and a half-graben? What will be an ideal ... (Read 54 times)

lbcchick

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on: Jul 15, 2018
What is the difference between a graben and a half-graben?
 
  What will be an ideal response?

Question 2

Match the features of a subduction zone with the manner of formation.
 
  A) Where pyroclastic materials and sediments eroded from landmasses collect on the opposite side of the island arc from the trench
  B) Where pyroclastic materials and sediments eroded from landmasses collect between the island arc and the trench
  C) Partial melting of subducting plates create magma, which rises to the surface
  D) Where the subducting slabs of oceanic lithosphere descend into the asthenosphere
 
  1) Volcanic arc
  2) Deep-ocean trench
  3) Fore-arc region
  4) Back-arc region


fauacakatahaias

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

Answer: Half-grabens are bounded by one normal fault whereas grabens are bounded by two normal faults.

Answer to Question 2

Answers: 1) C 2) D 3) B 4) A


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