a deep valley that forms where an oceanic plate collides with a continental plate

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). … It mixes with the overlying mantle, and the addition of water to the hot mantle lowers the crust’s melting point and leads to the formation of magma (flux melting).

When oceanic lithosphere collides with another plate?

When two oceanic lithospheres collide, one runs over the other which causes the latter to sink into the mantle along a zone called a subduction zone. The subducting lithosphere is bent downward to form a very deep depression in the ocean floor called a trench. The deepest ocean in the world is found along trenches.

When continental and oceanic plates collide?

When continental and oceanic plates collide, the thinner and more dense oceanic plate is overridden by the thicker and less dense continental plate. The oceanic plate is forced down into the mantle in a process known as “subduction.” As the oceanic plate descends, it is forced into higher temperature environments.

What happens when two continental plates collide quizlet?

a collision between two continental plates crunches and folds the rock at the boundary, lifting it up and leading to the formation of mountains and mountain ranges.

When an oceanic and a continental plate converge quizlet?

What happens when an oceanic and a continental plate converge? The oceanic plate will be subducted. What happens when two continental plates converge? Neither subducts; instead, a mountain range forms.

What happens to plate A as it collides with plate B?

Answer: The volcanic arc is formed to “plate A” as it collides with “plate B”. The collision of these two plates results in the oceanic current which is generated. … The earthquake is produced because of the volcanic arc creation between the plate A and the plate B.

Which of the following happens when a continental collision occurs?

In geology, continental collision is a phenomenon of plate tectonics that occurs at convergent boundaries. Continental collision is a variation on the fundamental process of subduction, whereby the subduction zone is destroyed, mountains produced, and two continents sutured together.

What typically happens in a continental collision zone?

Continental collision occurs as two continental tectonic plates run into each other. … Unlike a collision involving an oceanic plate, though, the other continental plate tends to break and is forced upward. This upward force occurs during a continental collision because these plates tend to be low in density.

When a continental plate and an oceanic plate collide they can form quizlet?

When 2 continental plates collide neither sink because they both have similar density in each. They will form mountain ranges. When both a oceanic and continental collide the oceanic plate will subduct under the continental because it is more dense, a deep sea trench will usually form.

When the oceanic plate hits a continental one the continental plate?

Generally, when the oceanic plate hits a continental one, the continental plate uplifts, and the oceanic plate goes beneath it or subducts. When two oceanic plates collide, the older, heavier plate usually subducts beneath the other.

What event is most likely to occur when an oceanic plate collides with a continental plate?

earthquakes

So at the converging boundary of an oceanic tectonic plate and a continental tectonic plate, the oceanic plate is subducted resulting in mountain building, volcanos and earthquakes. The sedimentary layers of the oceanic crust with its fossils are destroyed, melted and turned back into magma and the mantle.

What continental oceanic landforms?

continental landform, any conspicuous topographic feature on the largest land areas of the Earth. … (The term landform also can be applied to related features that occur on the floor of the Earth’s ocean basins, as, for example, seamounts, mid-oceanic ridges, and submarine canyons.)

What is the landforms as continental and oceanic crust?

Continental and Oceanic Landforms
DescriptionContinentalOceanic
Low land between hills or mountainsValleyRift
Deep valley with high steep sidesCanyonTrench
An opening in the surface from which lava flowsVolcanoSeamount and Volcanic Islands

Which landforms are used for deep sea research?

Answer b: Trenches, abyssal plains, etc are useful for deep sea research. On the ocean-bed, there are some landforms which are deep, narrow and steep. They are called marine deeps or trenches. Generally, the shallower ones are called marine deeps while deeper ones and extending for longer distance are called trenches.

What is are formed when convergent oceanic plates happened?

If the two plates that meet at a convergent plate boundary both are of oceanic crust, the older, denser plate will subduct beneath the less dense plate. … The older plate subducts into a trench, resulting in earthquakes. Melting of mantle material creates volcanoes at the subduction zone.

Where are oceanic plates destroyed at?

subduction zone

Such destruction (recycling) of crust takes place along convergent boundaries where plates are moving toward each other, and sometimes one plate sinks (is subducted) under another. The location where sinking of a plate occurs is called a subduction zone.

What does oceanic oceanic convergence?

In ocean-ocean convergence, two oceanic plates converge or collide. The denser plate subducts into the asthenosphere below the convergence zone and forms a trench at the surface. This region below the convergence zone is called the zone of subduction.

How are oceanic oceanic and oceanic continental convergent boundaries different?

The oceanic plate is pushed under the continental plate and melted. … Continental plates are much thicker that Oceanic plates. At the convergent boundaries the continental plates are pushed upward and gain thickness. The rocks and geological layers are much older on continental plates than in the oceanic plates.

What do continental oceanic convergent boundaries form?

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