There are three types of plate boundaries. They are:
- Divergent Boundaries: New crust is generated as the plates pull away from each other. The sites where the plates move away from each other are called spreading sites. Example: Mid-Atlantic Ridge
- Convergent Boundaries: The crust is destroyed as one plate dived under another. The location where the sinking of a plate occurs is called a subduction zone. There are three ways in which convergence can occur. These are:
- Between an oceanic and continental plate;
- Between two oceanic plates; and
- Between two continental plates.
- Transform Boundaries: The crust is neither produced nor destroyed as the plates slide horizontally past each other.