It melts and becomes magma.
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.
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.
Ocean crust far from a mid-ocean ridge is older and colder compared to the younger crust closer to the ridge. As the crust cools, it becomes denser and contracts, causing it to subside and sink deeper into the mantle due to isostasy - the balance of buoyancy forces. Additionally, sediments accumulating on top of the crust can also contribute to its subsidence.
The Earth's crust is thinner than the ocean floor because the oceanic crust is formed at mid-ocean ridges where heat from the mantle creates new crust through volcanic activity. This process creates younger, hotter, and thinner crust in the ocean compared to the older and thicker continental crust.
Heat transfer from the mantle creates convection currents that drive the movement of Earth's crustal plates. As hotter mantle material rises, it pushes the crust apart at mid-ocean ridges, while cooler material sinks, pulling the crust down in subduction zones. This movement of the crust is known as plate tectonics.
it makes more magma.
Crust mantle core
Conduction. Heat istransferred from the mantle to the crust, melting it to become part of the mantle.
Is there magnetic stripe son the ocean floor are places where oceanic crust sink back to the mantle
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.
rocks
No. According to scientific theory, tectonic plates of the lithosphere (the Earth's crust and outermost mantle) are below the ocean.
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.
Ocean crust far from a mid-ocean ridge is older and colder compared to the younger crust closer to the ridge. As the crust cools, it becomes denser and contracts, causing it to subside and sink deeper into the mantle due to isostasy - the balance of buoyancy forces. Additionally, sediments accumulating on top of the crust can also contribute to its subsidence.
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The Earth's crust is thinner than the ocean floor because the oceanic crust is formed at mid-ocean ridges where heat from the mantle creates new crust through volcanic activity. This process creates younger, hotter, and thinner crust in the ocean compared to the older and thicker continental crust.
Heat transfer from the mantle creates convection currents that drive the movement of Earth's crustal plates. As hotter mantle material rises, it pushes the crust apart at mid-ocean ridges, while cooler material sinks, pulling the crust down in subduction zones. This movement of the crust is known as plate tectonics.