The ocean floor has the same general character as the land areas of the world.
Is the ocean floor topographically uniformly.
Any portion of the ocean floor that is topographically higher than surrounding sea floor d.
The pacific ocean basin has spread the greatest distance.
Approximately 37 km 3.
Analyze and conclude 1.
Greatest at the geographic poles and least near the equator.
At depths of over 10 000 feet and covering 70 of the ocean floor abyssal plains are the largest habitat on earth.
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.
Like land terrain the ocean floor has ridges valleys plains and volcanoes.
You may perceive the ocean floor to be flat and sandy like the beach but the truth is there are many different surfaces.
Hope you have gone through our easy to learn notes covering important land features.
Explorations after 1950 revealed the true complex nature of the ocean floor.
The seabed also known as the seafloor sea floor or ocean floor is the bottom of the ocean no matter how deep.
An extinct oceanic hot spot volcano that has subsided below sea level.
On average oceanic crust is only 6 to 7km thick compared to 35 to 40km for con tinental crust.
Arctic ocean arctic ocean topography of the ocean floor.
Let s start from ocean floor first.
Ocean floor topography refers to the different forms in which the ocean floor bottom can exist.
Pacific ocean ridge crest ocean floor crust south atlantic ocean fed c b a 39 km 2 million years north atlantic ocean 0 20 40 km scale answers to procedure questions 1.
Most people are surprised to learn that just as the surface of the earth is not flat the surface of the ocean is not flat and that the surface of the sea changes at different rates around the globe.
Uniformly 100 km c.
From the late 19th century when the norwegian explorer fridtjof nansen first discovered an ocean in the central arctic until the middle of the 20th century it was believed that the arctic ocean was a single large basin.
Geography is an interesting subject which covers land lithosphere water hydrosphere and air atmosphere.
For instance the absolute water level height is higher along the west coast of the united states than the east coast.
All floors of the ocean are known as seabeds.
Sunlight does not penetrate to the sea floor making these deep dark ecosystems less productive than those along the continental shelf.
As scientific knowledge has advanced the capability to envisage these remote sites has increased significantly.
Earth the water planet we know that our earth is the only planet in the solar system.
The lack of weathering and erosion in most areas however allows geological processes to be seen more clearly on the seafloor than.
Now let s see how to learn fast the concepts associated with hydrosphere.
Approximately 80 km 2.
Map showing the underwater topography of the ocean floor.
