Deep Sea Floor Surface Area

A andesitic mountains b basaltic nodules c deep trenches.

Deep sea floor surface area.

The following features are shown at example depths to scale though each feature has a considerable range at which it may occur. The ocean surface is vast and hides an entire world underneath it. The phrases the ocean or the sea used without specification refer to the interconnected body of salt water covering the. Though people have traveled on the ocean for millennia people have explored only a tiny fraction of the ocean floor.

The ocean is a common aquatic biome consisting predominantly of water oceans are the largest biome by area covering anywhere around 25 33 of the surface area of the overworld when factoring in all of its variants and consist of a deep body of water with the surface at an altitude of y 63 by default which is counted as the sea level of the world. An abyssal plain is an underwater plain on the deep ocean floor usually found at depths between 3 000 metres 9 800 ft and 6 000 metres 20 000 ft lying generally between the foot of a continental rise and a mid ocean ridge abyssal plains cover more than 50 of the earth s surface. The magnetism of mid ocean ridges helped scientists first identify the process of seafloor spreading in the early 20th century. Continental shelf 300 feet continental slope 300 10 000 feet abyssal plain 10 000 feet abyssal hill 3 000 feet up from the abyssal plain seamount 6 000 feet.

Benthos is the community of organisms which live on in or near the seabed the area known as the benthic zone. Even though the ocean makes up 70 of earth s surface area technological challenges have severely limited the extent of deep sea mining. This community lives in or near marine sedimentary environments from tidal pools along the foreshore out to the continental shelf and then down to the abyssal depths the benthic zone is the ecological region on in and immediately above the seabed including the sediment surface. Seamounts are a possible future source of economically important metals.

The deep sea or deep layer is the lowest layer in the ocean existing below the thermocline and above the seabed at a depth of 1000 fathoms 1800 m or more. When two plate margins converge and one is pulled down into the mantle are formed. Basalt the once molten rock that makes up most new oceanic crust is a fairly magnetic substance and scientists began using magnetometers to measure the magnetism of the ocean floor in the 1950s what they discovered was that the magnetism of the ocean floor around. But with the constantly decreasing supply on land some mining specialists see oceanic mining as the destined future.

This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. On earth an ocean is one of the major conventional divisions of the world ocean these are in descending order by area the pacific atlantic indian southern antarctic and arctic oceans. The deep ocean floor comprises of the earth s surface area. An ocean is a body of water that composes much of a planet s hydrosphere.

Little or no light penetrates this part of the ocean and most of the organisms that live there rely for subsistence on falling organic matter produced in the photic zone for this reason scientists once assumed that life would be sparse. We know very little about the vast expanse of our oceans.