Plate Tectonics Questions Medium
The process of convergent boundary formation occurs when two tectonic plates collide or move towards each other. There are three main types of convergent boundaries: oceanic-continental, oceanic-oceanic, and continental-continental.
In an oceanic-continental convergent boundary, an oceanic plate, which is denser, subducts or sinks beneath a less dense continental plate. This subduction creates a deep ocean trench and can lead to the formation of volcanic arcs and mountain ranges, such as the Andes in South America.
In an oceanic-oceanic convergent boundary, two oceanic plates collide. One plate usually subducts beneath the other, forming a deep ocean trench. This subduction can result in the formation of volcanic island arcs, like the Japanese archipelago.
In a continental-continental convergent boundary, two continental plates collide. Since continental plates have similar densities, neither subducts beneath the other. Instead, the collision causes the crust to buckle and fold, forming large mountain ranges, such as the Himalayas.
Overall, the process of convergent boundary formation involves the collision or convergence of tectonic plates, leading to various geological features and phenomena.