Topographic features

Topography (in relation to the deep-sea) refers to the shape of the ocean basin. Along the seafloor, there are a variety of topographic features like rift valleys, abyssal plains and seamounts. Within the different features, different marine minerals are usually present. For example, polymetallic sulfides are found on rift valleys, manganese nodules are found on abyssal plains and cobalt crusts on seamounts (see the definitions polymetallic sulfides, manganese nodules and cobalt crusts).