Major Relief Features Of Ocean Floor

These relief features found on the ocean floor are called submarine relief.

Major relief features of ocean floor.

It comprises of many complex and varied relief as observed on the earth s surface. Ocean relief is the outcome of the great depressions of the earth s outer layer mostly on the bottom surface. The ocean floors can be divided into four major divisions and some minor relief features. Ocean basin any of several vast submarine regions that collectively cover nearly three quarters of earth s surface.

Ocean relief ocean relief is largely due to tectonic volcanic erosional and depositional processes and their interactions. Relief of the ocean floor. A number of major features of the basins depart. The following features are shown at example depths to scale though each feature has a considerable range at which it may occur.

Major ocean relief features four major divisions in the ocean relief are. Together they contain the overwhelming majority of all water on the planet and have an average depth of almost 4 km about 2 5 miles. Ocean relief features are divided into major and minor relief features. Mid oceanic ridges a mid oceanic ridge is composed of two chains of mountains separated by a large depression.

Apart from the above mentioned major relief features of the ocean floor some minor but significant features predominate in different parts of the oceans. The large supply of terrigenous and shallow water sediments buries the irregular topography to form a generally flat relief. This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. The ocean basins are broadly divided into four major subdivisions.

Part of byju s ncert geography notes for upsc 2019. 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. Oceanic land forms submarine relief there are mountains basins plateaus ridges canyons and trenches beneath the ocean water too.

The ocean floor also has high mountains deep trenches and large flat plains. The mountain ranges can have peaks as high as 2 500 m and some even reach above. The continental shelf the continental slope the continental rise the deep sea plain or the abyssal plain. These forms are called submarine relief.

Covering nearly 40 of the ocean floor the abyssal plains are present in all major oceans and several seas of the world. These features are formed due to the tectonic volcanic and depositional activities.