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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.
Why does ocean crust far from a mid-ocean ridge subside?
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.
How does heat transfer from the mantle relate to the movement of earths 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.
Why the crust is thinner than the ocean floor?
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.
What happens when th ocean crust melts in the mantle?
it makes more magma.
What is below the ocean floor?
Crust mantle core
How is the depth of ocean crust will related to the age of the ocean?
The depth of ocean crust is generally related to its age due to the process of thermal contraction and isostasy. Younger oceanic crust, formed at mid-ocean ridges, is hotter and less dense, resulting in a shallower depth. As the crust ages, it cools, becomes denser, and sinks deeper into the mantle, leading to greater ocean depths over time. Thus, older ocean crust is typically found at greater depths compared to younger crust.
At deep ocean trenches what allows oceanic crust to sink back into the mantle?
Conduction. Heat istransferred from the mantle to the crust, melting it to become part of the mantle.
Is there magnetic strips on the ocean floor are places where oceanic crust sink back to the mantle?
Is there magnetic stripe son the ocean floor are places where oceanic crust sink back to the mantle
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.
Oceanic crust returns to the mantle at deep ocean trenches which are?
rocks
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.
Are the plates of the crust floating in the ocean?
No. According to scientific theory, tectonic plates of the lithosphere (the Earth's crust and outermost mantle) are below the ocean.
Why does ocean crust far from a mid-ocean ridge subside?
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.
How does heat transfer from the mantle relate to the movement of earths 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.
What does ocean crust and mantle form after subduction?
u form yo mama
