This dataset shows the age of the ocean floor along with the labeled tectonic plates and boundaries.
The youngest part of the ocean floor is found.
It is composed of several layers not including the overlying sediment.
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.
A craton is a stable part of the continental lithosphere which has survived several cycles responsible for the merge and the dislocation of supercontinents.
This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level.
Oceanic crust is about 6 km 4 miles thick.
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.
The downward part of a convection current causes a sinking force that.
Near ocean ridges d.
Some cratons in canada and greenland shelter the oldest continental rocks in the world about 4 billion years old.
Near ocean ridges is defined as the study of the history of earth s magnetic field.
Where earth s magnetic field changes polarity.
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 oldest continental rocks are found in cratons.
Where ocean sediments are thickest c.
Because of this the youngest sea floor can be found along divergent boundaries such as the mid atlantic ocean ridge.
The youngest part of the ocean floor is found.
Cratons are therefore always found within continents.
The youngest part of the ocean floor is found.
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.
Plates slide past one another at.
Where earth s magnetic field changes polarity.
Pulls tectonic plates toward one another.