a. Do you think partial melting will occur if the pressure is high in the asthenosphere?
b. Do you think partial melting will occur if there is too much amount of water in the subduction zone?
c. Do you think partial melting will occur if there is direct contact of hot molten rock in the Earth's crust?
Answers
Answer:
A.No. There is NO partial melting because there should be a decrease of pressure in the asthenosphere.
B.No. There is NO partial melting because too much water will decrease the melting of the rocks.
C.Yes. There is partial melting heat is transferred because from the molten rocks to the Earth's cold crust.
Explanation:
(a.) The process in which the existing rocks melt, which allows the magma formed to be more of a leucocratic mineral.
It can also occur when the existing rocks in the crust melt from the magma heat.
Hence, there will be no partial melting if the pressure is high in the asthenosphere.
(b.) Water addition to the hot mantle rocks helps lower their melting temperature, which affects the partial melting of ultramafic mantle rocks to yield magma.
Hence, the addition of water too much water in the sub-conduction zone will cause partial melting to occur.
(c.)When the rock's temperature is high, it will melt minerals in the rock, partial melting. The direct contact of hot molten rock in the Earth's crust allows partial melting.
Hence, partial melting will occur if direct contact with hot molten rock in the Earth's crust.