EARTH SCI Q2 OCEAN BASIN

CONTINENTAL SHELF

Partly shallow extension of the continent underwat

CONTINENTAL SLOPE

Transition zone of continental shelf and deep ocean floor. It starts from oceanic crust to continental crust.

CONTINENTAL RISE

It is where the ocean begins. All basaltic and oceanic rocks are found here. It is the place where the sediments from land are washed. The continental margin starts from continental shelf up to continental rise.

ABYSSAL PLAIN

- The flattest part of the ocean. 50 % of the earth’s surface is being covered by this plain.

ISLAND

It’s not just a piece of land floating up in the middle of the sea, it is part of the ocean basin that extends up from the ocean floor

SEAMOUNT

It is an undersea mountain. The erosion caused by waves destroyed the top of a seamount which caused it to be flattened.

TRENCH

It is the deepest part of the ocean.

MID OCEANIC RIDGE

The seafloor mountain system which is situated in the middle of the ocean basin. It is where upwelling of magma happens which causes the sea floor to spread