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What happens when the ocean crust sinks deeper inyo the mantle?
Wiki User
∙ 12y ago
It melts and becomes magma.
Wiki User
∙ 12y ago
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What happens when ocean crust and mantle after subduction?
one edge is forced below the edge of another
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.
Do magnetic stripes on the ocean floor oceanic crust sink back into the mantle?
Eventually the oceanic crust, along with the magnetically aligned minerals contained within, will be subducted into the mantle.
What is the thickest part of the outermost layers?
The crust is the thickest under mountain ranges, up to 70 miles. Average depth of continental crust is 27 miles.
How do the mantle's convection currents move to form a mid-ocean ridge?
The mantle's convection currents move in the mantle in the form of magma which creates the mid-ocean ridge. Mid-ocean ridges are found in every ocean in the world and when the currents erupt as lava the eventually cool and create a crust.
What happens when th ocean crust melts in the mantle?
it makes more magma.
What happens when ocean crust and mantle after subduction?
one edge is forced below the edge of another
What is below the ocean floor?
Crust mantle core
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.
Where oceanic crust sinks toward the mantle beneath continental crust a deep ocean?
A deep ocean subduction trench
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
Ocean crust is denser than the continental crust because it contain more of which 3 element?
It is the crust and mantle,and core
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.
Oceanic crust returns to the mantle at deep ocean trenches which are?
rocks
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.
What does ocean crust and mantle form after subduction?
u form yo mama
What is the moving portion of earths crust and upper mantle?
a moving portion of earths crust and upper mantle is called a ridge that's when the ocean floor has underwater volcano that erupts
