The Youngest Part Of The Ocean Floor Is Found

A craton is a stable part of the continental lithosphere which has survived several cycles responsible for the merge and the dislocation of supercontinents.

The youngest part of the ocean floor is found.

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. The youngest crust of the ocean floor can be found near the seafloor spreading centers or mid ocean ridges as the plates split apart magma rises from below the earth s surface to fill in the empty void. Where earth s magnetic field changes polarity. Because of this the youngest sea floor can be found along divergent boundaries such as the mid atlantic ocean ridge.

Pulls tectonic plates toward one another. Near ocean ridges d. The oldest continental rocks are found in cratons. The youngest part of the ocean floor is found at conservative plate boundaries where oceanic crust is pulled apart and magma rises from the mantle to form new oceanic crust.

Some cratons in canada and greenland shelter the oldest continental rocks in the world about 4 billion years old. The youngest part of the ocean floor is found. This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. Along deep sea trenches b.

Where ocean sediments are thickest c. Where earth s magnetic field changes polarity. The following features are shown at example depths to scale though each feature has a considerable range at which it may occur. Near ocean ridges is defined as the study of the history of earth s magnetic field.

Oceanic crust the outermost layer of earth s lithosphere that is found under the oceans and formed at spreading centres on oceanic ridges which occur at divergent plate boundaries. It is composed of several layers not including the overlying sediment. The downward part of a convection current causes a sinking force that. Oceanic crust is about 6 km 4 miles thick.

Cratons are therefore always found within continents. The youngest part of the ocean floor is found.