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What are places where oceanic crust sinks back to the mantle?
No. Mid oceanic ridges are the places where new oceanic crust are forming.
What does ocean crust and mantle form after subduction?
u form yo mama
At deep-ocean trenches what allows oceanic crust to sink back into the mantle?
Subduction.
SUbduction occurs where the oceanic crust bends down toward the mantle at a(an)?
deep ocean trench.
Subduction of oceanic crust at a continental margin creates .?
Ocean trenches and Island arcs.
How the Earth's crust remains the same size?
The answer is subduction. In locations around the world, ocean crust subducts, or slides under, other pieces of Earth's crust. Deep below the Earth's surface, subduction causes partial melting of both the ocean crust and mantle as they slide past one another.
Earth does not get bigger as new oceanic crust forms?
Just as new oceanic crust forms at mid-ocean ridges, old oceanic crust is destroyed at subduction zones.
Earth crust grows at mid ocean ridges why doesnt the earth grow larger?
At the opposite end of the convection current in the Earth's mantle that creates oceanic crust at the mid-ocean ridge, are trenches, where oceanic crust is diving down into the mantle. The Atlantic Ocean is expanding. The Pacific Ocean is shrinking.
Where oceanic crust sinks toward the mantle beneath continental crust a deep ocean?
A deep oceanic trench forms where oceanic crust subducts beneath continental crust. The descending oceanic plate melts as it reaches greater depths, creating magma that can lead to volcanic activity. This process can also generate earthquakes due to the intense pressure and stress in the subduction zone.
What is the process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary called?
The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary is called subduction. This occurs because oceanic crust is denser than the underlying asthenosphere, causing it to be pulled down into the mantle. Subduction zones are associated with the formation of volcanic arcs and deep-sea trenches.
What happens when ocean crust and mantle after subduction?
When ocean crust and mantle are subducted, the oceanic crust descends into the mantle, where it eventually reaches a depth where it melts due to the high temperatures and pressures. This molten material can rise back to the surface through volcanic activity, forming island arcs or volcanic mountain ranges. The subducting crust can also undergo partial melting, which can alter the composition of the mantle wedge above the subduction zone.
Do magnetic stripes on the ocean floor oceanic crust sink back into the mantle?
No, the magnetic stripes on the ocean floor form due to the alignment of magnetic minerals in the crust as it solidifies from the mantle. The oceanic crust is eventually consumed in subduction zones and recycled back into the mantle, but the magnetic stripes themselves do not sink back into the mantle.
