When oceanic- oceanic convergence take place, big events like volcanic activities, earthquakes, trenches and valleys forms. What geological events are possible with the oceanic oceanic convergence? Chains of volcanoes, called island arcs, form over subduction zone melting occurs where the subducting plate reenters the mantle. …Īn ocean-ocean convergent boundary occurs location where two oceanic plates come together and the denser plate sinks, or subducts, beneath the less dense plate, forming a deep ocean trench. A subduction zone is formed at a convergent plate boundary when one or both of the tectonic plates is composed of oceanic crust. One example of this type of oceanic-continental convergent boundary is the Andes mountain range of western South America. What forms at a continental oceanic convergent boundary? What is an example of an oceanic continental boundary? What is an example of oceanic continental convergence?Įxamples of ocean-continent convergent boundaries are subduction of the Nazca Plate under South America (which has created the Andes Mountains and the Peru Trench) and subduction of the Juan de Fuca Plate under North America (creating the Cascade Range). The magma rises and erupts, creating volcanoes. The subducting plate causes melting in the mantle above the plate. This process, called subduction, occurs at the oceanic trenches. When oceanic crust converges with continental crust, the denser oceanic plate plunges beneath the continental plate. What happens at a continental oceanic convergent boundary? 4 What is oceanic continental divergent?.
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