GEOLOGY

Detailed explanation-1: -Subduction is the process in which a dense tectonic plate slips or melts beneath a more buoyant one. Most subduction happens as an oceanic plate slips beneath a less-dense plate. Along with the rocks and minerals of the lithosphere, tons of water and carbon are also transported to the mantle.

Detailed explanation-2: -Whenever a subduction zone is formed, the subducted plate will end up being partially melted by the earth’s internal magma and molten. This melting leads to heat being transferred upwards and uplifting the crust, eventually developing into a volcano.

Detailed explanation-3: -This process is called subduction. A deep ocean trench forms at this subduction boundary. As the subducting plate plunges deep into the mantle, it gets so hot it melts the surrounding rock. The molten rock rises through the crust and erupts at the surface of the overriding plate.

Detailed explanation-4: -Subduction zones are where the cold oceanic lithosphere sinks back into the mantle and is recycled. They are found at convergent plate boundaries, where the oceanic lithosphere of one plate converges with the less dense lithosphere of another plate.

Detailed explanation-5: -Old oceanic crust melts as it sinks back into the mantle Because it is less dense than the surrounding rock, molten. material from the mantle rises through the crust toward cracks in the ocean floor. The processes of subduction and sea-floor spreading can change the size and shape of the oceans.