Age Of Ocean Floor Definition

The data is from four companion digital models of the age age uncertainty spreading rates and spreading asymmetries of the world s ocean basins.

Age of ocean floor definition.

To get the dependence on x one must substitute t x v ax l where l is the distance between the ridge to the continental shelf roughly half the ocean width and a is the ocean basin age. Contours of 20 million years are available as a layer that is currently set to invisible. The lack of weathering and erosion in most areas however allows geological processes to be seen more clearly on. For that geologists date and study continental crust.

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. Other articles where ocean floor is discussed. Seabed contains several hundred years worth of cobalt and nickel.

The ionic growing earth ige posits the same 8 elements that started the earth heated the planet for the first 3 3 5 billion years of its existence see ige fig. The arrival of water 1400 mya solidified the molten crust and by 1200 mya submerged. February 4 2019 eugene ellis. Because of this correlation between age and subduction potential very little ocean floor is older than 125 million years and almost none of it is older than 200 million years.

Mountains plains channels canyons exposed rocks and sediment covered areas. The landscape of the ocean floor is much like what you see on land just way more dramatic and without all that life. The ocean floor has the same general character as the land areas of the world. 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.

Therefore seafloor dating isn t that useful for studying plate motions beyond the cretaceous. Rather than height of the ocean floor above a base or reference level the depth of the ocean is of interest. This dataset shows the age of the ocean floor along with the labeled tectonic plates and boundaries. Age of the ocean floor a critical analysis.

The following features are shown at example depths to scale though each feature has a considerable range at which it may occur.