You searched for: “geological oceanography
geological oceanography (s) (noun) (no pl)
The study of the features of the floors and margins of the oceans; marine geology; submarine geology: Geological oceanography encompasses descriptions of topography, composition of bottom matter, mutual action of sediments and rocks with air and sea water, the results of motion in the mantle on the sea floor, and activity of wave energy in the submarine crust of the Earth.