Oceanic-oceanic plate collision ________.
A) results in the newer, denser oceanic plate to subduct under the older, lighter plate
B) results in the older, denser oceanic plate to subduct under the newer, lighter plate
C) exhibits no volcanism whatsoever
D) exhibits no earthquakes whatsoever
E) None of these is correct.

Question

Quizplus · Accepted Answer

In an oceanic-oceanic plate collision, the older, denser oceanic plate will subduct under the newer, lighter plate. This is because as plates move away from each other at a divergent boundary, magma rises to fill the gap, creating new oceanic crust. The older crust is therefore denser and heavier than the newer crust, causing it to be pushed down and subduct when the two plates collide at a convergent boundary. This process often leads to volcanic activity and earthquakes.

Oceanic-Oceanic Plate Collision ________