Convergent boundaries occur when two tectonic plates move towards each other, resulting in significant geological features." Subduction Zones: "When an oceanic plate collides with a continental plate, the denser oceanic plate is forced beneath the continental plate into the mantle. This process is called subduction and can form deep ocean trenches and volcanic arcs. The Andes Mountains in South America are a result of this process, where the Nazca Plate subducts beneath the South American...