This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level.
The youngest material of the ocean floor is found where.
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.
Mountains 2 volcanoes 3 ocean basins.
As the earth s plate pull apart at some boundaries they collide at others forming and.
Because of this the youngest sea floor can be found along divergent boundaries such as the mid atlantic ocean ridge.
The oceanic crust is composed of rocks that move away from the ridge as new crust is being formed.
Younger than on the other side c.
A mirror image of that of the other side b.
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 mid ocean ridge is the region where new oceanic crust is created.
It is thinner denser younger and of different.
New rock material added to the edges of the south american and african plates at the mid atlantic ridge has separated the two continents.
Imagine what the ocean floor would have looked like 150 million years ago when all the rocks younger than that did not yet exist.
It is composed of several layers not including the overlying sediment.
The magnetic pattern of ocean floor rocks on one side of an ocean ridge is.
The following features are shown at example depths to scale though each feature has a considerable range at which it may occur.
The topmost layer about 500 metres 1 650 feet thick includes lavas made of basalt that is rock material consisting largely of plagioclase and pyroxene oceanic crust differs from continental crust in several ways.
The crust overlies the solidified and uppermost layer of the mantle the crust and the solid mantle layer together constitute oceanic lithosphere.
Much different from the magnetic pattern found in rocks on land d.
The process of sea floor spreading.
Oceanic crust is the uppermost layer of the oceanic portion of a tectonic plate it is composed of the upper oceanic crust with pillow lavas and a dike complex and the lower oceanic crust composed of troctolite gabbro and ultramafic cumulates.
Oceanic crust is about 6 km 4 miles thick.
The oldest material on the ocean floor is about 180 million years old.
The youngest material found on the ocean floor is found at mid ocean.
At right angles to the ocean ridge.
