Question

Oceanic crust is composed mainly of basalt .continental crust is composed mainly of granite .why does oceanic crust generally tend to subduct under continental crust when plates collide

Answer 1

Answer and Explanation:

Oceanic crust has a different density amount than continental crust. So since the oceanic crust is actually denser than continental, when plates collide. Oceanic would be the crust to sub duct under continental crust