Floor Of Ocean Basins

Mid oceanic ridge is normally found rising above the ocean floor at the center of the ocean basins see figure 10p 1.

Floor of ocean basins.

About 70 of the planet s surface is made up of ocean basins which are the regions that are below sea level these areas hold the majority of the planet s water. Sunlight does not penetrate to the sea floor making these deep dark ecosystems less productive than those along. It causes a rise of the ocean floor around 2 130 metres. It also causes magma to rise up from the mantle of the earth forming crusts.

In fact scientists have mapped more of the surface of the moon mars and venus than the surface of our ocean. At depths of over 10 000 feet and covering 70 of the ocean floor abyssal plains are the largest habitat on earth. Ocean basin ocean basin deep sea sediments. More modern sources e g floyd 1991 regard the ocean basins more as basaltic plains than as sedimentary depositories since most sedimentation occurs on the continental shelves.

These features are involved in the generation of new oceanic crust from volcanic fissures produced by mantle up welling. The ocean basin floor is everywhere covered by sediments of different types and origins. The only exception are the crests of the spreading centres where new ocean floor has not existed long enough to accumulate a sediment cover. You may have heard this fact before and while true.

The ocean floor is a mysterious place that marine geologists and oceanographers have struggled to fully grasp. Together they contain the overwhelming majority of all water on the planet and have an average depth of almost 4 km about 2 5 miles. Ocean basin any of several vast submarine regions that collectively cover nearly three quarters of earth s surface. Continuing your journey across the ocean basin you would descend the steep continental slope to the abyssal plain.

Within the areas of the pacific ocean basin there is a ridge that forms from the gulf of california right down to the west of the southern part of south america. Oceanographers also recognize the southern ocean which encircles antarctica and includes the southernmost parts of the pacific. Sediment thickness in the oceans averages about 450 metres 1 500 feet. A number of major features of the basins depart.