Major Relief Features Of Ocean Floor

Mid oceanic ridges a mid oceanic ridge is composed of two chains of mountains separated by a large depression.

Major relief features of ocean floor.

This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. Covering nearly 40 of the ocean floor the abyssal plains are present in all major oceans and several seas of the world. The oceanic relief features are in the form of mountains basins plateaus ridges canyons and trenches beneath the ocean water. The following features are shown at example depths to scale though each feature has a considerable range at which it may occur.

A number of major features of the basins depart. These features are formed due to the tectonic volcanic and depositional activities. The mountain ranges can have peaks as high as 2 500 m and some even reach above. The large supply of terrigenous and shallow water sediments buries the irregular topography to form a generally flat relief.

Relief of the ocean floor. Ocean relief is the outcome of the great depressions of the earth s outer layer mostly on the bottom surface. Ocean basin any of several vast submarine regions that collectively cover nearly three quarters of earth s surface. The continental shelf the continental slope the continental rise the deep sea plain or the abyssal plain.

Ocean relief ocean relief is largely due to tectonic volcanic erosional and depositional processes and their interactions. The ocean floor also has high mountains deep trenches and large flat plains. Major ocean relief features four major divisions in the ocean relief are. They are uniquely flat with a gradient of less than 10 000.

The ocean floor is not flat as it was believed to be in the earlier days. 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. Apart from the above mentioned major relief features of the ocean floor some minor but significant features predominate in different parts of the oceans. Part of byju s ncert geography notes for upsc 2019.

The bottom surface of the ocean or known as land under the waters of the ocean floor creating the complex and varied features. These relief features found on the ocean floor are called submarine relief. Ocean relief features are divided into major and minor relief features. The ocean basins are broadly divided into four major subdivisions.

These forms are called submarine relief. Oceanic land forms submarine relief there are mountains basins plateaus ridges canyons and trenches beneath the ocean water too.