Here's why:
* Oceanic-Continental Convergence: The Andes are formed by the Nazca Plate (oceanic) subducting beneath the South American Plate (continental).
* Subduction Zone: The denser oceanic plate sinks beneath the continental plate, creating a subduction zone.
* Magma and Volcanoes: As the oceanic plate descends, it melts, generating magma that rises to the surface, forming volcanoes.
* Folding and Uplift: The collision of the plates also causes the continental crust to fold and uplift, creating the massive mountain range.
Other notable mountain ranges formed by oceanic convergence:
* The Cascades (North America)
* The Japanese Alps
* The Aleutian Islands
Let me know if you'd like more details on the process of oceanic convergence!
