Question

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.

Answer 1

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.

Answer 2

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C) An ocean trench ridge will be formed by ridge push.

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