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The trenches are evidence that one of the colliding plates is moving beneath the other.

As the two plates move together, one gets pushed below the other. The place where this sinking/bucking occurs creates a deep trench. The deepest of which is Marianas trench about 7 miles deep.

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7mo ago

Oceanic trenches are found in association with subduction zones because they are formed when one tectonic plate is forced beneath another, creating a deep trench in the ocean floor. Subduction zones are areas where one plate is being pushed beneath another, leading to the formation of trenches.

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Q: Why are Oceanic trenches found only in association with subduction zones?
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What boundary can a trench be found?

Trenches are typically found at the boundaries of tectonic plates, where one plate is being subducted beneath another. The most well-known trenches are oceanic trenches, found underwater near subduction zones where one tectonic plate sinks beneath another.


When oceanic plates come together what land form does this event create?

When oceanic plates come together, they create a subduction zone where one plate is forced beneath the other. This process forms deep ocean trenches and can lead to the formation of volcanic arcs and islands.


Subduction zones are found near what kind of boundaries?

Subduction zones are found near convergent plate boundaries, where two tectonic plates collide and one plate is forced beneath the other, leading to the formation of deep ocean trenches and volcanic arcs.


Where are deep oceanic trenches found?

Deep oceanic trenches are found in the Earth's oceans, primarily at convergent plate boundaries where one tectonic plate is being forced beneath another. Some well-known deep oceanic trenches include the Mariana Trench in the western Pacific Ocean and the Peru-Chile Trench off the coast of South America.


What causes an oceanic trench to form?

They are formed at destructive plate boundaries where one plates subducts under another. The deep sea trench marks the point at which the denser plate ( or faster plate when it is oceanic vs. oceanic) begins to subduct the lighter one. They are very long, narrow and steep-sided depressions in the ocean floor.

Related questions

Where can trenches be found?

Subduction zones


What is likely to be found in subduction zones?

In subduction zones, one tectonic plate is forced beneath another, creating intense pressure and heat. This often leads to the formation of deep oceanic trenches, volcanic activity, earthquakes, and the recycling of oceanic crust back into the Earth's mantle through a process called subduction.


What boundary can a trench be found?

Trenches are typically found at the boundaries of tectonic plates, where one plate is being subducted beneath another. The most well-known trenches are oceanic trenches, found underwater near subduction zones where one tectonic plate sinks beneath another.


Are the oldest rocks of the oceanic crust found in deep ocean trenches far away from active mid-ocean ridges?

No, the oldest rocks of the oceanic crust are typically found near the continents where they have had more time to form and accrete. Deep ocean trenches are usually associated with subduction zones where tectonic plates are being forced underneath each other, rather than locations where new oceanic crust is forming.


When oceanic plates come together what land form does this event create?

When oceanic plates come together, they create a subduction zone where one plate is forced beneath the other. This process forms deep ocean trenches and can lead to the formation of volcanic arcs and islands.


Subduction zones are found near what kind of boundaries?

Subduction zones are found near convergent plate boundaries, where two tectonic plates collide and one plate is forced beneath the other, leading to the formation of deep ocean trenches and volcanic arcs.


Where are deep oceanic trenches found?

Deep oceanic trenches are found in the Earth's oceans, primarily at convergent plate boundaries where one tectonic plate is being forced beneath another. Some well-known deep oceanic trenches include the Mariana Trench in the western Pacific Ocean and the Peru-Chile Trench off the coast of South America.


Do convergent boundaries have trenches?

Yes, convergent boundaries can have trenches. Trenches are often found at subduction zones where one tectonic plate is being forced beneath another plate. The descending plate forms a trench as it sinks into the mantle.


Description of oceanic-oceanic subduction?

Oceanic-oceanic subduction occurs when a denser oceanic plate sinks beneath another oceanic plate at a convergent boundary. The subducting plate descends into the mantle, creating a deep ocean trench. This process can lead to the formation of volcanic island arcs and earthquakes.


What causes an oceanic trench to form?

They are formed at destructive plate boundaries where one plates subducts under another. The deep sea trench marks the point at which the denser plate ( or faster plate when it is oceanic vs. oceanic) begins to subduct the lighter one. They are very long, narrow and steep-sided depressions in the ocean floor.


At What type of boundary would a trench be created?

A trench is typically created at a convergent boundary, where two tectonic plates are being forced towards each other, leading to subduction of one plate beneath the other. This process results in the formation of a deep trench on the ocean floor.


Why are most oceanic trenches found in the pacific ocean?

The Pacific Ocean is part of the Ring of Fire. The ring of fire is underwater trenches made my moving plates. The plates pushed on each other and eventually moved downward, creating trenches