1. Plate Tectonics: This is the primary driver of mountain formation. When tectonic plates collide, they can buckle, fold, and uplift the Earth's crust, creating mountains. This process is called orogenesis.
* Convergent Plate Boundaries: This is where two plates collide. There are three main types of convergent boundaries:
* Continental-Continental: Both plates are continental, leading to the formation of massive mountain ranges like the Himalayas.
* Oceanic-Continental: A denser oceanic plate subducts (slides) under a continental plate, resulting in volcanic mountain ranges like the Andes.
* Oceanic-Oceanic: One oceanic plate subducts under another, forming volcanic island arcs like Japan.
2. Volcanism: While not as common as tectonic activity, volcanism can also create mountains.
* Volcanic Mountains: These mountains are formed by the accumulation of lava and ash that erupts from volcanoes. Examples include Mount Fuji in Japan and Mount Kilimanjaro in Tanzania.
It's important to remember that these two factors can work together. For example, a volcanic mountain range may be formed at a subduction zone (an example of a convergent plate boundary).
