Formation Of New Crust On Atlantic Coen Floor What Ahppen

In locations where two plates move apart at mid ocean ridges new seafloor is continually formed during seafloor spreading.

Formation of new crust on atlantic coen floor what ahppen.

New ocean crust erupts in the void creating an ocean between continents. The formation of new crust along the mid atlantic ridge is also increasing the size of the atlantic ocean. The oceanic crust is composed of rocks that move away from the ridge as new crust is being formed. The process of sea floor spreading.

The formation of the new crust is due to the rising of the molten material magma from the mantle by convection current. The magnetism of mid ocean ridges helped scientists first identify the process of seafloor spreading in the early 20th century. When two plates converge the result depends on the type of lithosphere the plates are made of. When oceanic plates diverge tensional stress causes fractures to occur in the lithosphere.

A symmetrical pattern of positive and negative magnetic lines emanates from the mid ocean ridge. Basalt the once molten rock that makes up most new oceanic crust is a fairly magnetic substance and scientists began using magnetometers to measure the magnetism of the ocean floor in the 1950s what they discovered was that the magnetism of the ocean floor around. 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.

This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. The following features are shown at example depths to scale though each feature has a considerable range at which it may occur. The new crust does and will displace the water. New rock is formed by magma at the mid ocean ridges and the ocean floor spreads out from this point.

No matter what smashing two enormous slabs of lithosphere together results in magma generation and earthquakes. The oceanic crust is formed at mid atlantic ridge a chain of under water mountain range with active volcanic activities pushes apart the new ocenic crust note that if ocean floor is created then.