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Why is the lower mantle more rigid and dense then the asthenosphere in the upper mantle?
The lower mantle is more rigid and dense than the asthenosphere in the upper mantle because of higher pressure and temperature conditions. The increased pressure in the lower mantle prevents rocks from flowing as easily as in the asthenosphere. This leads to higher density and rigidity in the lower mantle region.
What are the layers of the mantle?
The mantle is divided into two main layers: the upper mantle and the lower mantle. The upper mantle is further divided into the lithosphere and the asthenosphere. The lithosphere is rigid and made up of the crust and the upper part of the mantle, while the asthenosphere is semi-molten and capable of flowing.
What is another name for the upper part of the mantle?
The upper part of the mantle is also called the asthenosphere. This layer is partially molten and lies just beneath the lithosphere.
What three differences between the upper and lower mantle?
The upper mantle is composed mostly of solid rock, while the lower mantle is under higher pressure and temperature, causing it to behave more like a viscous fluid. The upper mantle is part of the Earth's lithosphere and is involved in plate tectonics, while the lower mantle is located in the asthenosphere and undergoes convection currents. The upper mantle is closer to the Earth's surface and extends to a depth of about 410 miles, while the lower mantle extends from about 410 miles to 1,800 miles beneath the surface.
Is the upper mantle part of the lithosphere or asthenosphere?
The The crust and the uppermost layer of the mantle form the lithosphere. The asthenosphere, which is still in the upper mantle, is the next layer down.
What are the part of the mantle?
The upper mantle and the lower mantle.
Is asthenosphere the lower mantle?
No. The asthenosphere is part of the upper mantle.
Is the lower part of the mantle called the lithosphere or asthenosphere?
The lower part of the mantle is actually names the mesosphere. It is overlain by the asthenosphere which is part of the upper mantle and this in turn is overlain by the lithosphere which is made up of the very uppermost mantle and the crust.
Why is the lower mantle more rigid and dense then the asthenosphere in the upper mantle?
The lower mantle is more rigid and dense than the asthenosphere in the upper mantle because of higher pressure and temperature conditions. The increased pressure in the lower mantle prevents rocks from flowing as easily as in the asthenosphere. This leads to higher density and rigidity in the lower mantle region.
The mantle is made of what structural zones?
The mantle is composed of the upper mantle and the lower mantle. The upper mantle is known for its plasticity and convective movement, while the lower mantle is more rigid and is characterized by high-pressure conditions.
What part of the mantle is the asthenosphere found?
The asthenosphere lies in, and is the upper ductile part of, the mantle. It is the layer directly underneath the lithosphere; the layer composed of the crust and uppermost rigid mantle.
What is the bottom part of the mantle called?
The bottom part of the mantle is called the "lower mantle." It lies beneath the upper mantle and extends from about 670 kilometers to 2,900 kilometers below the Earth's surface. The lower mantle is composed of solid rock that is capable of flowing over long periods of time.
What part of the earths mantle that flows and moves the plates of the earth?
Mantle plumes are in the mantle, BELOW the Earth's crust. The circulation of heat from the lower mantle to the upper mantle can cause "hot spots" in the overlying crust, heating the magma in the areas.
What are the layers of the mantle?
The mantle is divided into two main layers: the upper mantle and the lower mantle. The upper mantle is further divided into the lithosphere and the asthenosphere. The lithosphere is rigid and made up of the crust and the upper part of the mantle, while the asthenosphere is semi-molten and capable of flowing.
What is another name for the earths crust and upper mantle?
It is called the lithosphere.
Name the layer of the earth between the crust and the core that is the part liquid part solid?
The layer of the Earth between the crust and the core that is partially liquid and partially solid is the mantle. The upper mantle is solid rock, while the lower mantle is semi-fluid due to high temperatures and pressure.
What is another name for the upper part of the mantle?
The upper part of the mantle is also called the asthenosphere. This layer is partially molten and lies just beneath the lithosphere.
