Part one of term paper
When any two plates collide, some sort of activity is bound to take place. A specific type of boundary is a convergent plate boundary. At this type of boundary, two plates are moving towards each other. Neither plate is subducted into the mantle. Many things happen when plates drive into each other. Including volcanic activity. When two cont ...

Part two of term paper
... the mantle, with almost the same effects. Most islands and island chains are results of volcanic activity. You see, even though neither plate is actually being subducted on two of the convergent plate boundaries, one plate is pushed a bit under the other normally. At the sea floor to continent boundary, the sea floor is subducted. As the plates move together, molten material from the mantle seeps up between the converging plates. The gap is closed as the plates move more into each other, locking ...