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The continental crust (one component of the crust) is, on average, much older than the oceanic crust.
Continental crust is far older than oceanic crust.
The older peices of the Earths crust are significantly lighter than the newer peices, (i.e. oceanic plates / basalt) forcing them to the surface.
Actually nothing significant happens after that, the cycle just continues. Are you sure you wanted to know what happens when a new oceanic crust forms or how is a new oceanic crust formed? If you meant how a new oceanic crust is formed then here is the answer>>>> New oceanic crust forms when the divergent plate margins move away from each other leaving a gap, then magma rises to fill that gap, then it cools and turns solid and forms new land. :) I hope this was helpful!
in your bunghole
Older material
New rock is formed near the mid-oceanic ridge as oceanic plates diverge or separate from each other. Hot rocks rising from the asthenosphere melt from decompression as they rise, filling the fault and forming new basaltic oceanic crust. As new crust is added, older crust is pushed away. Therefore, the further away from the mid-oceanic ridge, the older the crustal rocks.
Continental crust is far older than oceanic crust.
New sea floor or the oceanic floor forms through rifting or Mid Ocean Ridges. The ridge begins when Mantle convection from the Mantle rises up through the Moho to the surface. This causes a break between the continental floor and it begins to rift apart. The upwelling mantle will begin to cool off as it moves away from the centre forming new oceanic crust. The Younger crust is therefore in the middle of the rift with the older crust being on the edges.
The continental crust (one component of the crust) is, on average, much older than the oceanic crust.
Continental crust is far older than oceanic crust.
Sorry, you have it entirely reversed.
The older peices of the Earths crust are significantly lighter than the newer peices, (i.e. oceanic plates / basalt) forcing them to the surface.
Actually nothing significant happens after that, the cycle just continues. Are you sure you wanted to know what happens when a new oceanic crust forms or how is a new oceanic crust formed? If you meant how a new oceanic crust is formed then here is the answer>>>> New oceanic crust forms when the divergent plate margins move away from each other leaving a gap, then magma rises to fill that gap, then it cools and turns solid and forms new land. :) I hope this was helpful!
Density. Older is usually denser.
because
because