On average oceanic crust is only 6 to 7km thick compared to 35 to 40km for con tinental crust.
Floor of the oceaan.
When the nippon foundation gebco seabed 2030 project was.
The latest status of its seabed 2030 project was announced to coincide with world hydrography day.
The ocean floor is literally the floor of the ocean.
It is the bottom of the ocean when you dive.
Mountains plains channels canyons exposed rocks and sediment covered areas.
It is the only intergovernmental organisation with a mandate to map the entire ocean floor.
The ocean basins are characterized not only by lying in deep water the ocean floor averages about 4km below sea level but also by being underlain by a thin layer of crust.
Continental shelf 300 feet continental slope 300 10 000 feet abyssal plain 10 000 feet abyssal hill 3 000 feet up from the abyssal plain seamount 6 000 feet.
This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level.
Exploration of the seafloor and the earth s crust.
The lack of weathering and erosion in most areas however allows geological processes to be seen more clearly on.
The following features are shown at example depths to scale though each feature has a considerable range at which it may occur.
Other articles where ocean floor is discussed.