Deep Sea Floor Surface Area
We know very little about the vast expanse of our oceans.
Deep sea floor surface area. 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. The phrases the ocean or the sea used without specification refer to the interconnected body of salt water covering the. A andesitic mountains b basaltic nodules c deep trenches. The magnetism of mid ocean ridges helped scientists first identify the process of seafloor spreading in the early 20th century.
When two plate margins converge and one is pulled down into the mantle are formed. Even though the ocean makes up 70 of earth s surface area technological challenges have severely limited the extent of deep sea mining. The ocean floor is sometimes called the final frontier of the modern era. Though people have traveled on the ocean for millennia people have explored only a tiny fraction of the ocean floor.
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. The deep ocean floor comprises of the earth s surface area. 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. An ocean is a body of water that composes much of a planet s hydrosphere.
They are among the flattest smoothest and least explored regions on earth. This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. A about 3 b more than half c over 70 d very little. The following features are shown at example depths to scale though each feature has a considerable range at which it may occur.
Seamounts are a possible future source of economically important metals. 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. 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. 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.
But with the constantly decreasing supply on land some mining specialists see oceanic mining as the destined future. The ocean surface is vast and hides an entire world underneath it.