What happens when two plates carrying oceanic crust collide

The density of the plates determines which one comes out above when two plates collide. As it stretches out from the middle sea floor, the oceanic crust becomes colder and denser. When two oceanic crust plates meet on a trench, underneath the other layer sinks the plate which is more thick.

Explanation:

An event happens when the crust of the ocean sinks under the continental crust. The crust sinks because the continental crust is colder and denser. Deep seabeds, along with coastal mountains, also develop at these locations.

Some of the youngest trenches in the world are in the East Pacific Ocean. The Deep Ocean Trenches. Here, for example, under the North American Plate the Pacific Plate sinks down. Many underwater earthquakes occur as oceanic crust shifts.

The continental crust buckles into several mountains as oceanic crust settles below a continent.

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