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when the oceanic and continental lithospheres collide

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When The Oceanic And Continental Lithospheres Collide?

When oceanic lithosphere and continental lithosphere collide, the dense oceanic lithosphere subducts beneath the less dense continental lithosphere. An accretionary wedge forms on the continental crust as deep-sea sediments and oceanic crust are scraped from the oceanic plate.

When the oceanic and continental Lithospheres collide quizlet?

What happens when the oceanic and continental lithosphere collide? The oceanic plate subducts. You just studied 31 terms!

When oceanic lithosphere collides with a continental plate the?

when oceanic lithosphere collides with continental lithosphere, oceanic subducts because it’s denser than continental lithosphere. when two plates are made of oceanic lithosphere and collide, one plate is subducted under the other, forming deep ocean trench.

What happens when two lithosphere collides?

When two lithospheric continental plates collide, the rocks at the boundary breaks and folds and thereby gets lifted up to form mountains and mountain

What happens when oceanic and continental plates collide quizlet?

When two oceanic plates collide, the denser plate is subducted and some material rises upward and forms an ISLAND. What happens when two continental plates collide? The continental crust is pushed together and upward to form large MOUNTAIN ranges. … Ocean floor is pushed away from a midocean ridge to form new sea floor.

When oceanic lithosphere and continental lithosphere collide at convergent plate boundaries what may be formed?

A deep ocean trench forms. What happens when oceanic and continental lithosphere collide? Magma forms the asthenosphere cools to form new oceanic lothosphere.

What happens when oceanic lithosphere collides with continental lithosphere *?

When a plate carrying an oceanic crust collides with a plate carrying continental crust, the plate carrying continental crust becomes unable to sink under the more dense plate of oceanic crust. As a result, the plate of continental crust sinks beneath the plate of oceanic current and the process of subduction occurs.

What happens when oceanic plates collide?

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. … Earthquakes generated in a subduction zone can also give rise to tsunamis.

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What happens when continents collide?

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 happens when two plates carrying oceanic crust collide?

When two plates carrying oceanic crust collide, the plate carrying older oceanic crust will be forced below the other in a process called subduction….

What happens when two plates slide past each other?

When oceanic or continental plates slide past each other in opposite directions, or move in the same direction but at different speeds, a transform fault boundary is formed. No new crust is created or subducted, and no volcanoes form, but earthquakes occur along the fault.

What will happen when two continental plates collide at a convergent boundary?

If two tectonic plates collide, they form a convergent plate boundary. Usually, one of the converging plates will move beneath the other, a process known as subduction. … The new magma (molten rock) rises and may erupt violently to form volcanoes, often building arcs of islands along the convergent boundary.

What events occur during the convergent of continental plates and oceanic plates?

When a continental plate meets an oceanic plate, the thinner, denser, and more flexible oceanic plate sinks beneath the thicker, more rigid continental plate. This is called subduction. Subduction causes deep ocean trenches to form, such as the one along the west coast of South America.

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.

What happens when an oceanic plate meets another oceanic plate quizlet?

The oceanic plate is subducted. What happens when an oceanic plate meets another oceanic plate? The older, colder oceanic plate is subducted. … The two plates are forced upward, and a large mountain range is formed.

When two oceanic plates come together A is formed quizlet?

When two oceanic plates collides, they will form a volcanic island arc. This also forms a subduction zone. This is happening at the Aleutian Islands close to Alaska. Boundary between tectonic plates in which the two plates move away from each other, and new crust is created between them.

What happens to the old oceanic lithosphere at the convergent plate boundary?

As oceanic lithosphere cools, it becomes denser, and the further away from the plate boundary it moves, the thicker it becomes. At a convergent plate boundary the oceanic lithosphere sinks beneath the adjacent plate in a process known as ‘subduction’.

What is formed in oceanic oceanic convergence?

An 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. Chains of volcanoes, called island arcs, form over subduction zone melting occurs where the subducting plate reenters the mantle.

What happens to the lithospheric plates as they collide with each other?

Convergent boundaries: where two plates are colliding.

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Subduction zones occur when one or both of the tectonic plates are composed of oceanic crust. The denser plate is subducted underneath the less dense plate. The plate being forced under is eventually melted and destroyed.

What geological processes will occur if oceanic crust collides with continental 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 (figure 6). The entire region is known as a subduction zone. Subduction zones have a lot of intense earthquakes and volcanic eruptions.

What happens when continental crust collides with other continental crust?

When two continental crusted plates converge, they eventually collide and end up producing mountains; this was how the Himalayan Mountains were created. … Whenever a subduction zone is formed, the subducted plate will end up being partially melted by the earth’s internal magma and molten.

Is new oceanic lithosphere is unable to form at mid ocean ridges?

New oceanic lithosphere is unable to form at mid-ocean ridges. … Bands of magnetic material in the sea floor that have opposite poles, or exhibit magnetic reversal, can provide evidence for sea floor spreading.

What is formed on the oceanic side when oceanic and continental collide?

A. Trench is formed on the oceanic side when oceanic and continental crust collide. Explanation: … At the subduction boundary, a deep ocean trench forms.

When two tectonic plates collide the continental crust usually rise up over the oceanic crust because it is?

Oceanic crust is typically denser than continental crust and is forced downwards into the hot mantle when it collides with continental crust. The less dense conitinental crust is forced upward. This occurred​ in Ireland with the closure of the Iapetus Ocean over 450 million years ago.

What is oceanic continental convergence?

Ocean-Continent Convergence. 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 subducting plate causes melting in the mantle above the plate.

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When plates move towards each other they collide this movement is known as?

Convergent boundaries are areas where plates move toward each other and collide. These are also known as compressional or destructive boundaries. Subduction zones occur where an oceanic plate meets a continental plate and is pushed underneath it.

What will happen if two oceanic plates move away from each other?

When two plates move away from each other they create a divergent boundary. When this happens under oceans, new ocean floor is created. When two plates move away from each other they create a divergent boundary. When this happens under oceans, new ocean floor is created.

What geologic formed when two plates move away from each other?

When two plates are moving away from each other, we call this a divergent plate boundary. Along these boundaries, magma rises from deep within the Earth and erupts to form new crust on the lithosphere. Most divergent plate boundaries are underwater and form submarine mountain ranges called oceanic spreading ridges.

What are the consequences of convergent oceanic and continental plates?

Effects of a convergent boundary between an oceanic and continental plate include: a zone of earthquake activity that is shallow along the continent margin but deepens beneath the continent, sometimes an ocean trench forms immediately off shore of the continent, a line of volcanic eruptions a few hundred miles inland …

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.

Which of the following is formed in the convergence of two oceanic or oceanic and continental plates?

When two oceanic plates collide against each other, the older and therefore heavier of the two subducts beneath the other, initiating volcanic activity in a manner similar to that which occurs at an oceanic-continental convergent plate boundary and forming a volcanic island arc.

What geologic feature is formed when two oceanic plates collide?

When two oceanic plates converge, both a trench and a string of volcanoes are formed. These volcanoes can build to produce island chains, such as the Mariana Islands, which are located alongside the Marianas Trench.

What landform is created when two continental plates collide quizlet?

When two plates collide. Volcanic and folded mountains are common at this type of plate boundary.

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