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What drives plate movement by pushing rock back into the mantle where it melts?
Wiki User
∙ 8y ago
Well rifts do the pushing, but gravity does the downward motion causing the melting.
Wiki User
∙ 8y ago
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How are felsic magmas formed?
Heat from the mantle melts part of the lower crust
A majority of the melts in the Earth form through the partial melting of ultramafic mantle rock These newly-formed magmas are?
Newly formed magmas are usually mafic.
How is pressure involved in melting mantle material at a mid-ocean ridge?
Pressure is involved because as the plates move apart, lower mantle material is hot, flexible, and solid. This rock is solid because of the great pressure of the layers above it. However. as the rock of the lower mantle rises, the pressure drops and the material melts.
What happens to an oceanic plate as it pushes against a continental plate and sinks?
The oceanic plate sinks into the mantle where it melts. This is replaced by new oceanic plate at the mid-oceanic ridge.
What is the effect when an oceanic plate meets a continental plate?
the oceanic plate subducts under the continental plate and then melts in the mantle and often will create volcanos along the conitinental plate.\
Where does felsic?
Heat from the mantle melts part of the lower crust.
The bottom edgeof the diving plate melts in the heat of the?
Mantle
Where does felsic form?
Heat from the mantle melts part of the lower crust.
What is wrong in this sentence rock melts at calderas and then is forced towards the crust as magma?
Rock does not melt in calderas. It melts in the upper mantle.
What happens when th ocean crust melts in the mantle?
it makes more magma.
How are felsic magmas formed?
Heat from the mantle melts part of the lower crust
When solid rock in the earths mantle melts it forms a liquid rock known as?
Magma
What happens when the ocean crust sinks deeper inyo the mantle?
It melts and becomes magma.
What is an area where magma from deep within the mantle melts through the crust above?
Hot spot.
Happen to the movement of atoms as an ice cube melts?
they spred out
Magma forms when solid rock in the crust and upper mantle?
Cools ^ If you took this answer then is Magma relevant to Ice? Magma forms when the solid rock in the crust and upper mantle melts. ^Why not erase it then?
What happen to the subducted material in a mantle?
The part of the plate that is subducting gets melted into magma and flows back into the mantle.
