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At mid-oceanic ridges, plates are pulled apart in two separate directions. This creates a gap (rift valley), allowing for warm, buoyant magma to rise to the surface and cool. As the magma cools, it creates ridges along the rift valleys. The elevation is caused by the excess amount of newly created, less dense oceanic crust. This crust occupies more volume, which causes it to be higher up than the surrounding, older crust.
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The process that takes place at mid-ocean ridges is called?
Seafloor spreading. This process includes the splitting of oceanic crust, pushing it aside and building new crust in the middle by magmatic activity.
What is a oceanic ridges?
I think just a oceanic ridges
Most igneous activity takes place where?
Along the mid oceanic ridges (sites of crustal generation)
Is Mid ocean ridges the places where oceanic crust sinks back to the mantle?
No. Mid oceanic ridges are the places where new oceanic crust are forming.
Can oceanic lithosphere form at mid ocean ridges?
Oceanic lithosphere is always formed at active mid-ocean ridges and rises.
What is mid - oceanic ridges?
mountainous topography
What happens when oceanic plates diverge?
When oceanic and oceanic plates diverge it creates mid ocean ridges!
Where is oceanic crust created?
New oceanic crust is created at the mid-oceanic ridges, a divergent plate boundary.
New oceanic crust forms at?
Spreading ridges
Where are oceanic ridges generally located?
At spreading centers.
What is the process through which new crust is formed on the earth?
Generally, magmatic material rises through sea floor ridges to form new crust in the oceans. A small amount is released through volcanic activity.
Where is new oceanic crust created?
New oceanic crust is created at the mid-oceanic ridges, a divergent plate boundary.
