This process is known as subduction.
A tectonic boundary where two oceanic lithospheric plates are either moving away from one another and new crust is formed, or moving toward each other, in which the more dense oceanic plate will subduct beneath the less dense plate.
It subducts under another
Subduction
Subduction
oceanic convergence is when two oceanic plates subduct beneath one another.
The Cascade Range was formed by the subduction of the Juan de Fuca plate beneath the North American plate. This process created volcanic activity along the subduction zone, leading to the formation of the Cascade volcanoes. The range extends from northern California to British Columbia, with peaks such as Mount Rainier and Mount Hood.
The area or region where one plate dives beneath the other in a convergent plate boundary is called a subduction zone.
The layer beneath the lithosphere is much softer and flows very slowly.
Movement of lithospheric plates at convergent boundaries can result in the subduction of one plate beneath another. This subduction creates conditions for magma to form as the subducting plate melts. The rising magma then reaches the surface, leading to the formation of volcanoes.
A tectonic boundary where two oceanic lithospheric plates are either moving away from one another and new crust is formed, or moving toward each other, in which the more dense oceanic plate will subduct beneath the less dense plate.
subducting slab begins to descend beneath another lithospheric slab. Trenches are generally parallel to a volcanic island arc, and about 200 km (120 mi) from a volcanic arc. hence the age of ocean floor is usually greatest in subduction zones
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Beneath.
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Subduction
It subducts under another
Obviously the soil and rocks that are now on top of the mountain were once underneath the ocean. This occurs when the ground is raised up from beneath the sea by plates colliding and raising mountains.