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Where is new ocean floor formed At ocean trenches On the continental slopes At mid-ocean ridges On the continental shelves?
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In which ocean are most of the deep-sea trenches located?
Deep ocean trenches can be found near continental shelves. Some are found near volcanic islands, and are formed due to plate tectonics.
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.
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.
Does the theory of continental drift state that ocean crust is formed at ocean ridges and destroyed at deep sea trenches?
Yes
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 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.
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.
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.
What are deep 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.
