Age Of Ocean Floor Definition

Rather than height of the ocean floor above a base or reference level the depth of the ocean is of interest.

Age of ocean floor definition.

In recent years satellite images show a very clear mapping of the seabed and are used extensively in the study and exploration of the ocean floor. 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. The arrival of water 1400 mya solidified the molten crust and by 1200 mya submerged. Therefore seafloor dating isn t that useful for studying plate motions beyond the cretaceous.

The process that continually adds new material to the ocean floor is seafloor spreading and the continental slope. 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. Mountains plains channels canyons exposed rocks and sediment covered areas. The lack of weathering and erosion in most areas however allows geological processes to be seen more clearly on.

Other articles where ocean floor is discussed. The ocean floor has the same general character as the land areas of the world. Seabed contains several hundred years worth of cobalt and nickel. February 4 2019 eugene ellis.

Contours of 20 million years are available as a layer that is currently set to invisible. 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. Exploration of the seafloor and the earth s crust. The following features are shown at example depths to scale though each feature has a considerable range at which it may occur.

This dataset shows the age of the ocean floor along with the labeled tectonic plates and boundaries. For that geologists date and study continental crust. 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. Age of the ocean floor a critical analysis.

This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level.