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the major composition is ultra-mafic rocks i.e. it contains rocks having higher proportion of iron and magnesium
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∙ 12y ago
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What layer of the earth is immediately below the crust?
It is the upper and lower mantle. It has the consistency of warm asphalt.
What would you find in earths upper mantel?
Melted, plasticlike rocks
Is magma found in the upper mantle?
I.am not sure but i think it is bc i believe the upper mantel is extremely hot
Can crystals form near Earth's upper mantel?
Absolutely. The mantel is composed of rock. Rock is composed of minerals. Minerals, by definition, have a crystalline structure.
Which layer of the earth does the convection necessary for plate motion occur?
upper mantle.
What is the composition of Earths mantel?
kum kum paste
What is the composition of earths lower mantel?
kum kum paste
What layer of the earth is immediately below the crust?
It is the upper and lower mantle. It has the consistency of warm asphalt.
What is called the crust And the upper mantle called?
lithosphere
What would you find in earths upper mantel?
Melted, plasticlike rocks
Is magma found in the upper mantle?
I.am not sure but i think it is bc i believe the upper mantel is extremely hot
Can crystals form near Earth's upper mantel?
Absolutely. The mantel is composed of rock. Rock is composed of minerals. Minerals, by definition, have a crystalline structure.
What are the three layers of the Earth based on composition?
crust mantel core the three main layers
What is a thin outer shell of the earth consisting of the crust and the ridge upper mantel?
CRUST (lithosphere)
What is the upper mantel?
The upper mantel is the part of the mantel nearest to the Earth's surface. It is a little cooler than the lower mantel therefore more viscous, or pasty, than the lower mantel. Temperatures range between 932 °F-1,652 °F. at the upper boundary with the crust to over 7,200 °F at the boundary with the core. Although the higher temperatures far exceed the melting points of the mantle rocks at the surface (about 1200 °C for representative periditute), the mantle is almost exclusively solid. The enormous lithostatic pressure exerted on the mantle prevents "melting," because the temperature at which melting begins (the solidus) increases with pressure.
What is earths upper mantle composition?
hard rock
Which layer of the earth does the convection necessary for plate motion occur?
upper mantle.
