These plates move toward each other and collide. One of the plates is dragged down, or subducted, beneath the other. The area where the plate sinks under the adjacent plate is called the subduction zone. Convergence can occur between oceanic-continental plates, oceanic-oceanic plates, and continental-continental plates. An example of convergent plates is the Nazca plate (oceanic) subducting under the South American plate and creating the majestic Andes Mountains in South
America. When plates push together, the Earth's crust tends to buckle and be pushed upward or sideways. This is how the Himalayas was formed. Towering as high as 29,000 feet (8,854 m), they form the highest continental mountains in the world. Strong, destructive earthquakes and rapid uplift of mountain ranges are common. When an oceanic plate subducts under another oceanic plate, a trench is formed. Trenches can be hundreds of miles long and five to seven miles (8 to 10 km) deep cutting into the ocean floor.
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