Author Question: Explain the processes occurring in the figure above that are generating magma. At what kind of ... (Read 102 times)

james9437

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Explain the processes occurring in the figure above that are generating magma. At what kind of tectonic boundary are such processes common?
 
  What will be an ideal response?

Question 2

Slow cooling produces ________ crystals, whereas fast cooling produces ________ crystals.
 
  Fill in the blank with correct word.



Moriaki

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Answer to Question 1

Answer: As rifting occurs at the divergent boundary, pressure is decreased at that point on the mantle. Decompression melting generates magma.

Answer to Question 2

Answer: large; small



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