| 2. Convergent boundaries
The convergent boundaries are formed where the two plates move toward each other. In this process, one plate could slip below the other one or both could collide with each other.
a. Subduction boundaries
These boundaries are created when either oceanic lithosphere subducts beneath oceanic lithosphere (ocean-ocean convergence), or when oceanic lithosphere subducts beneath continental lithosphere (ocean-continent convergence), Figure 1.7. The junction where the two plates meet, a trench known as oceanic trench is formed. |
