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17 May, 07:28

Based upon the mechanics of mantle convection, which feature will most likely be formed at the blue arrow, and through which mechanism?

a. an island arc will be formed by ridge push.

b. a rift valley will be formed by subduction.

c. an ocean trench will be formed by slab pull.

d. a mid-ocean ridge will be formed by ridge push.

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  1. 17 May, 07:42
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    The answer is a. an island arc will be formed by ridge push.

    An island arc can be formed through mantle convection. Th process creates the movement of soil where cold areas sink downward and warm areas rise up. The contradicting movements create a push movement that can create an elevated ground.
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