Are long chains of mountains on the ocean floor?

Are long chains of mountains on the ocean floor?

The major features of the ocean basins and their colors on the map in Figure above include: mid-ocean ridges: rise up high above the deep seafloor as a long chain of mountains; e.g. the light blue gash in middle of Atlantic Ocean.

What were the large chains of mountains along the deep seafloor called?

seamount, large submarine volcanic mountain rising at least 1,000 m (3,300 feet) above the surrounding deep-sea floor; smaller submarine volcanoes are called sea knolls, and flat-topped seamounts are called guyots.

What is it called when the ocean floor sinks into the mantle?

Subduction is the process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle.

What is a chain of undersea mountains called?

If originated from current tectonic forces, they are often referred to as a mid-ocean ridge. In contrast, if formed by past above-water volcanism, they are known as a seamount chain. The largest and best known undersea mountain range is a mid-ocean ridge, the Mid-Atlantic Ridge.

What are mountains in the ocean called?

Seamounts are large submarine volcanic mountains, formed through volcanic activity and submerged under the ocean. Though they were once seen as nothing more than a nuisance by sailors, scientists have discovered that the structures of seamounts form wildlife hotspots.

What is a chain of underwater mountains called?

What is the undersea mountain chain where new ocean floor is produced?

mid-ocean ridge
mid-ocean ridge- the undersea mountain chain where new ocean floor is produced; a divergent plate boundary.

What is long narrow chain of underwater hills or mountains?

ridge
A ridge is a long, narrow chain of hills or mountains. The Mid-Atlantic Ridge is now known to be part of an underwater mountain chain that winds 65,000 kilometers around the earth.

Which is the largest mountain in the world?

Mount Everest
Mount Everest, located in Nepal and Tibet, is usually said to be the highest mountain on Earth. Reaching 29,029 feet at its summit, Everest is indeed the highest point above global mean sea level—the average level for the ocean surface from which elevations are measured.

Where is New seafloor formed?

mid-ocean ridges
Seafloor spreading occurs along mid-ocean ridges—large mountain ranges rising from the ocean floor. The Mid-Atlantic Ridge, for instance, separates the North American plate from the Eurasian plate, and the South American plate from the African plate.