Multiple Choice
Continental crust was only able to form once Earth's temperature had cooled enough for partial melting of the mantle to occur and produce basalt that was buoyant enough to stay afloat.Before this point small rafts of thin crust formed and remelted in a continuous cycle.What was the composition of these rafts?
A) mafic
B) ultramafic
C) felsic
D) intermediate
Correct Answer:
Verified
Correct Answer:
Verified
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