Multiple Choice
Why would a plume of solid silicate rock rising slowly from deep in the mantle begin melting as it neared the base of the lithosphere?
A) Temperatures remain high because of the geothermal gradient.
B) The rock heats up and expands at lower pressures, causing it to liquefy.
C) The lowered pressures cause rapid heat loss accompanied by melting.
D) none of the above
Correct Answer:
Verified
Correct Answer:
Verified
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