Question

What process will happen after a rock has gone through subduction? *

Answer 1

Answer:-

• Magma formed above a subducting plate slowly rise into the overriding crust and finally to the surface forming a volcanic arc, a chain of active volcanoes which parallels the deep ocean trench.

Answer 2

Answer:

ARC VOLCANISM

Explanation:

Arc Volcanism

As mentioned above, when subduction occurs, molten material is generated; this magma has a different composition than the materials it is derived from, leading to the formation of rocks like andesite an even granite -- the starting materials for continental crust. The magma rises up to the surface forming volcanoes like Mt. St. Helens that occur in a line or an arc, paralleling subduction zones, giving rise to the term volcanic arcs. Volcanic arcs occur where the subducting plate reaches depths between 100 and 300 km; this is where the temperatures and pressures necessary for melting occur.

This process will be defined in the same manner as the ocean crust production and subduction.

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