What do you call the very deep depression found under the ocean?

What do you call the very deep depression found under the ocean?

Ocean trenches are long, narrow depressions on the seafloor. These chasms are the deepest parts of the ocean—and some of the deepest natural spots on Earth.

What is the deepest zone found in the ocean?

the Mariana Trench
The deepest point in the ocean is located in the Mariana Trench off the coast of Japan at 35,797 feet (10,911 meters). The temperature of the water is just above freezing, and the pressure is an incredible eight tons per square inch.

What is the name of the deep trench in the ocean?

Then explain to students that the Mariana Trench is the deepest part of the ocean and the deepest location on Earth. It is 11,034 meters (36,201 feet) deep, which is almost 7 miles.

Where is the deepest ocean crust found?

western Pacific Ocean
The Mariana Trench or Marianas Trench is located in the western Pacific Ocean about 200 kilometres (124 mi) east of the Mariana Islands; it is the deepest oceanic trench on Earth. It is crescent-shaped and measures about 2,550 km (1,580 mi) in length and 69 km (43 mi) in width.

What are the depths of the ocean called?

The deepest regions of the sea are called hadopelagic (Gr.: hades = underworld). The hadopelagic extends into the deep-sea trenches, down to a depth of 11,000 metres. The inhabitants of this deepest marine region include bristle worms. The ambient pressure here is around 1000 times greater than at the water surface.

What is the deepest ocean zone called quizlet?

Beyond the edge of the continental shelf, lies the open-ocean zone which includes the deepest, darkest part of the ocean. The surface zone, transition zone, and deep zone are apart of the open-ocean zone. In the open-ocean zone, very little sunlight is received and there are fewer nutrients than the neritic zone.

Where are deep ocean trenches found?

Deep-sea trenches generally lie seaward of and parallel to adjacent island arcs or mountain ranges of the continental margins. They are closely associated with and found in subduction zones—that is, locations where a lithospheric plate bearing oceanic crust slides down into the upper mantle under the force of gravity.

What is the deepest trench in the Arctic Ocean?

Molloy Hole
The deepest place in each ocean are the Molloy Hole in the Fram Strait (Arctic Ocean; 5669 m, 79.137° N/2.817° E), the trench axis of the Puerto Rico Trench (Atlantic Ocean; 8408 m 19.613° N/67.847° W), an unnamed deep in the Java Trench (Indian Ocean; 7290 m, 11.20° S/118.47° E), Challenger Deep in the Mariana Trench …

Which is the deepest depression in the world?

The deepest known depression of this kind is the Mariana Trench, which lies east of the Mariana Islands in the western North Pacific Ocean; it reaches 11,034 metres (36,200 feet) at its deepest point.

Which is the deepest trench in the Pacific Ocean?

It is located near the Mariana Islands of the Pacific Ocean within the Mariana Trench, which is also a significantly deep location in the ocean floor. The Challenger Deep has been descended on 4 separate occasions. The first descent took place in 1960 by a manned bathyscaphe vehicle, the Trieste.

Which is the deepest part of the ocean floor?

An oceanic trench is a long and narrow depression in the ocean floor. These trenches are considered the deepest part of the ocean floor, occurring at the boundary between convergent plates and lithospheric plates.

Which is the second deepest subduction zone in the world?

The most recent descent was made in 2012 by a manned deep submergence vehicle, the Deepsea Challenger. The Tonga Trench is the second deepest site in the ocean floor at 35,702 feet below the level of the sea floor. It is located in the South Pacific Ocean, on the northern side of the Kermadec-Tonga Subduction Zone.