What Is An Example Of An Oceanic Oceanic Convergent Boundary?

When two oceanic plates converge What landform is produced?

A subduction zone is also generated when two oceanic plates collide — the older plate is forced under the younger one — and it leads to the formation of chains of volcanic islands known as island arcs.

Examples include the Mariana Islands in the western Pacific Ocean and the Aleutian Islands, off the coast of Alaska..

What happens when two oceanic plates diverge?

When two oceanic plates diverge, underwater ridges and mountain ranges form, such as the mid-Atlantic Ridge. You can think of this like the formation of underwater volcanoes, though it is a more gradual process. Eventually these mountain ranges can rise above the water to form islands.

What do convergent boundaries form?

Convergent boundaries form strong earthquakes, as well as volcanic mountains or islands, when the sinking oceanic plate melts. The third type is transform boundaries, or boundaries where plates slide past each other, forming strong earthquakes.

What is an oceanic oceanic convergent boundary?

At an ocean-ocean convergent boundary, one of the plates (oceanic crust and lithospheric mantle) is pushed, or subducted, under the other (Figure 4.6. 1). Often it is the older and colder plate that is denser and subducts beneath the younger and warmer plate.

What is the illustration an example of oceanic oceanic convergent boundary?

Examples of ocean-ocean convergent zones are subduction of the Pacific Plate south of Alaska (creating the Aleutian Islands) and under the Philippine Plate, where it creates the Marianas Trench, the deepest part of the ocean.

What happens when Oceanic and Oceanic collide?

When two oceanic plates collide one oceanic plate is eventually subducted under the other. … This andesitic magma is formed from the partial melting of the asthenosphere just above the subduction zone. This partial melting of the subducting plate is due to the loss of water as it descends into the mantle.

What does Oceanic Oceanic form?

Oceanic – oceanic convergence This water reduces the melting temperature of rocks in the asthenosphere and causes partial melting. Partial melt will travel up through the asthenosphere, eventually, reach the surface, and form volcanic island arcs.

What forms when two oceanic plates collide?

When two oceanic plates converge, the denser plate will end up sinking below the less dense plate, leading to the formation of an oceanic subduction zone. … Old, dense crust tends to be subducted back into the earth. An example of a subduction zone formed from a convergent boundary is the Chile-Peru trench.

What causes the formation of island arcs in oceanic oceanic convergent boundaries?

Island arcs are long chains of active volcanoes with intense seismic activity found along convergent tectonic plate boundaries (such as the Ring of Fire). Most island arcs originate on oceanic crust and have resulted from the descent of the lithosphere into the mantle along the subduction zone.

What 3 things are created by Convergent boundaries of oceanic and oceanic crust?

When oceanic crust converges with continental crust, the denser oceanic plate plunges beneath the continental plate. This process, called subduction, occurs at the oceanic trenches. The entire region is known as a subduction zone. Subduction zones have a lot of intense earthquakes and volcanic eruptions.

What is an example of a convergent plate boundary?

The Washington-Oregon coastline of the United States is an example of this type of convergent plate boundary. … The Andes Mountain Range of western South America is another example of a convergent boundary between an oceanic and continental plate. Here the Nazca Plate is subducting beneath the South American plate.

What landforms are created by Oceanic Oceanic?

Landforms under the ocean are:continental shelf,continental slope,continental rise,abyssal plain,mid-ocean ridge,rift zone,trench,seamount/guyot.