The ocean floor has many interesting physical features. The crust of the ocean floor is made up of a thin layer called basalt, a type of volcanic rock. The main features of the ocean floor are:
♦ Continental Shelf
♦ Continental Slope
♦ Ocean Bed and Continental Rise
♦ Trench
Ocean Trench is the area where the ocean floor has deep, narrow depressions. It is the deepest part of the ocean. One such deepest point is the Challenger Deep, which lies in the Mariana Trench in the Pacific Ocean. Its approximate depth is about 10,911m below the ocean’s surface.
