Plate Tectonics Questions Medium
The process of convergent plate boundary formation occurs when two tectonic plates collide with each other. There are three main types of convergent plate boundaries: oceanic-continental convergence, oceanic-oceanic convergence, and continental-continental convergence.
In oceanic-continental convergence, an oceanic plate, which is denser, subducts or sinks beneath a less dense continental plate. As the oceanic plate descends into the mantle, it creates a deep oceanic trench. The subduction of the oceanic plate can lead to the formation of volcanic arcs, such as the Andes Mountains in South America.
In oceanic-oceanic convergence, two oceanic plates collide with each other. One plate usually subducts beneath the other, forming a deep oceanic trench. This subduction can result in the formation of volcanic island arcs, like the Japanese archipelago.
In continental-continental convergence, 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, leading to the formation of mountain ranges. The Himalayas in Asia are an example of a mountain range formed by continental-continental convergence.
Overall, the process of convergent plate boundary formation involves the collision and interaction of tectonic plates, leading to various geological features such as trenches, volcanic arcs, and mountain ranges.