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How deep trenches are formed?
Deep-ocean trenches are formed where seafloor tectonic plates subduct under continental plates.
How the continental shelves developed?
The continental shelves were developed in between the glacial periods as the ocean flowed over the continents forming shallow areas along the coasts. The continental shelves developed today were formed like 18000 years ago.
Where do trenches form?
Treches are formed when an ocean plate subducts under a continental plate.
In which ocean are most of the deep-sea trenches located?
Most of the deep-sea trenches are located in the Pacific Ocean. These trenches are formed by the subduction of tectonic plates, where one plate slides beneath another, creating deep underwater chasms. The Mariana Trench, the deepest known trench on Earth, is located in the Pacific Ocean.
Where do midocean ridges intersect the landmasses?
Midocean ridges are areas where continents broke apart. Midocean ridges are closest to the landmasses in younger oceans. One example where a midocean ridge intersected a landmass is the Arabian sea, which was formed by the pulling apart of the Arabian Peninsula and Africa.
How do continental shelves form?
The continental shelves were developed in between the glacial periods as the ocean flowed over the continents forming shallow areas along the coasts. The continental shelves developed today were formed like 18000 years ago.
Does the theory of continental drift state that ocean crust is formed at ocean ridges and destroyed at deep sea trenches?
Yes
Does theory continental drift state that new ocean crust is formed at ocean ridges and destroyed at deep sea trenches?
No, the theory is that Seafloor spreading state that the new ocean crust is formed at ocean ridges and is destroyed at deep sea trenches.
Does sediment build up at the continental shelf?
The continental shelves were formed millions of years ago, when most of the land on the Earth was compacted into one huge landmass. After some time, this landmass began to break into smaller pieces, which became the continental shelves. Then they drifted farther and farther apart and appear where they are today.
What boundary is formed when and oceanic plate is pushed under a continental plate?
A subduction zone is formed when an oceanic plate is pushed under a continental plate. This process can lead to the formation of deep ocean trenches, volcanic arcs, and seismic activity.
How does trench formed?
They form when the oceanic crust goes under the Continental crust. The oceanic crust then forms the trenches through a process called subduction.
What are ocean trenches associated with?
Deep ocean trenches are associated with subduction zones where an ocean plate descends into the asthenosphere. The Ocean plate is heavier than a Continental plate which causes the Ocean plate to slide beneath the Continental plate. As the Ocean plate descends, a deep ocean trench is formed.
