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They form when the oceanic crust goes under the Continental crust. The oceanic crust then forms the trenches through a process called subduction.
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How a trench formed?
a trench is formed when 2 oceanic plates collide
What two plates formed the mariana trench?
The Marianas (or Mariana) Trench is formed by the subduction of the Pacific Plate as it is forced under the smaller Mariana Plate at the bottom of the ocean between Japan and New Guinea.
What are the two tectonic plates that formed the Mariana Trench?
The Mariana Trench was formed by the Pacific Plate subducting beneath the Mariana Plate. This subduction process created the deep trench in the western Pacific Ocean.
A trench forms when?
In geology a trench is formed where one tectonic plate is subducted or forced under another plate.
How was the japan trench formed?
It was formed by the subduction of the Pacific Plate beneath the north American plate.
What deep sea canyon was formed by a subducted plate?
Trench
What type of plate boundary formed Mariana trench?
gdgd
What is the ridge of the trench called?
The ridge of a trench is typically referred to as the "trench rim" or "trench wall." This elevated area marks the boundary of the trench and can be formed by the accumulation of sediment and debris. In the context of oceanic trenches, the surrounding landforms can include the trench slope and adjacent seafloor features.
What is the difference in a trench and a ridge?
Trenches are formed by divergent plates, Whereas Ridges are formed by plate in collision.
What is a island arcs?
it is a string of islands formed above a deep ocean trench
What is the difference between a ocean ridge and trench?
Trenches are formed by divergent plates, Whereas Ridges are formed by plate in collision.
What caused Mariana Trench?
The Mariana trench is the deepest part of the ocean in the world. It was formed by the subduction of the Pacific plate being forced under the Mariana plate.
