1. Oceanic-Continental Convergence:
* This is the most common type of subduction zone.
* Denser oceanic plate dives (subducts) beneath the less dense continental plate.
* Examples:
* Andes Mountains in South America
* Cascade Range in North America
* Japan
2. Oceanic-Oceanic Convergence:
* Two oceanic plates collide, with the older, denser plate subducting beneath the younger, less dense plate.
* This leads to the formation of island arcs.
* Examples:
* Mariana Islands
* Aleutian Islands
3. Continental-Continental Convergence:
* Two continental plates collide, resulting in intense compression and mountain building.
* Neither plate fully subducts, as they are both relatively buoyant.
* Example:
* Himalayan Mountains
In Summary:
Subduction zones are found wherever tectonic plates converge, resulting in the denser plate diving beneath the less dense plate. This process is a driving force behind earthquakes, volcanic activity, and mountain formation.