The deepest parts of the ocean floor are caused by plate tectonic subduction and occur where the sea floor sinks back into the mantle in a subduction zone. These areas are called deep sea trenches and the Challenger Deep in the Mariana Trench in the Pacific is the deepest known point in Earth's oceans.
The Pacific Ocean has the deepest trenches.
A deep ocean trench is a deep underwater canyon. It is found at the deepest parts of the ocean. It is long, thin, and has steep sides.
Oceanic trenches form where two tectonic plates converge, with one plate being forced beneath the other in a process known as subduction. This creates deep, narrow depressions in the ocean floor, some of which are the deepest parts of the ocean.
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Trenches are the deepest parts of the ocean. Abyssal plains are the flattest parts of the ocean, but not necessarily the deepest. For the record, Marianas Trench is the deepest trench in the world, located near the Philippines.
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Oceanic crust
Deep trenches in the ocean mark places where two tectonic plates are converging, with one plate being forced beneath the other. This process, known as subduction, is responsible for creating some of the deepest parts of the ocean.
That is a description of a trench, which is formed at tectonic plate boundaries where one plate is forced beneath another through a process called subduction. Trenches are among the deepest parts of the ocean floor.
Elongated troughs on the ocean floor are called oceanic trenches. These features are formed by the subduction of one tectonic plate beneath another, creating deep depressions in the seabed. Oceanic trenches are some of the deepest parts of the Earth's crust.
The deepest ocean in the entire world is the Pacific Ocean, which has on average a depth in the region of 13,215 feet. Although we do not know just how deep some parts are, scientists think that the deepest part known to mankind is 36,198 feet and this is actually found in the Mariana Trench in the Mariana Islands