Topographic Features On Ocean Floor
3 in the atlantic ocean 1 in the indian ocean and 22 in the pacific ocean figure 10p 3.
Topographic features on ocean floor. A topographic profile of the pacific ocean floor between japan and british columbia is shown in figure 18 3. The oceanic relief features are in the form of mountains basins plateaus ridges canyons and trenches beneath the ocean water. Typology of oceanic topography. Ocean trenches are long narrow steep sided depressions found on the ocean floor that contain the greatest depths in the ocean 11 000 meters western pacific.
Ocean floor topography involves the study of ocean bottom features including the outer continental shelf continental slopes and ocean waves desktops. This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. Today much of our exploration of the oceans happens using sonar and remotely operated vehicles. Broad flat part of the deep ocean basin covered by mud and the remains of marine organisms continental shelf.
Terms in this set 11 abyssal plain. The under water topography maps have been developed by the study of ocean floor topography. 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. Sea bottomsea bottom topographytopography main features vishnu m svishnu m s 11stst msc applied geologymsc applied geology university of calicutuniversity of calicut 2.
Scientific research submersibles have explored the ocean s deepest trenches but most are designed to reach only the ocean floor. Arctic ocean arctic ocean topography of the ocean floor. Be careful when interpreting this diagram and others like it because in order to show the various features clearly the vertical axis is exaggerated in this case by about 200 times. The ocean floor is called the abyssal plain.
Explorations after 1950 revealed the true complex nature of the ocean floor. Ocean floor topography features. There are 26 oceanic trenches in the world. The following features are shown at example depths to scale though each feature has a considerable range at which it may occur.
This study is extensive and it has been established that the ocean floor has similar features of mountains and valleys as on the earth.