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What do geologists believe heats thee upper mantle portion of the asthenosphere?
Wiki User
∙ 11y ago
newdiv
Wiki User
∙ 11y ago
Geologists believe that the upper mantle portion of the asthenosphere is primarily heated by the residual heat left over from the formation of the Earth, known as radiogenic heat. This heat is generated by the decay of radioactive isotopes present in the mantle. Other sources of heat include the heat transferred from the core and the heat produced by ongoing mantle convection.
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What part of the mantle is made of soft rock that bends like plastic.?
A portion of the upper mantle known as the asthenosphere.
Is the lower portion of the crust and the upper portion of the mantle called the core?
It is the Asthenosphere
What is the weak upper portion of the mantle which behaves plastically?
the asthenosphere
What contains the lower mantle?
The mantle extends to the core-mantle interface at approximately 2900 km depth. Thus, the mantle contains the lower portion of the lithosphere, the asthenosphere, and the mesosphere. The crust is made of the upper portion of the lithosphere.
Does the lithosphere have a greater temperature than the earth's mantle?
The lithosphere is the upper portion of the mantle. Its temperature is around 300 to 500 degrees Celsius. The lower portion of the mantle, which is the asthenosphere, has a temperature of around 4500 degrees Celsius.
What do geologists believe heats the upper mantle portion of the asthenosphere?
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What is the portion of the mantle?
The asthenosphere
What part of the mantle is made of soft rock that bends like plastic.?
A portion of the upper mantle known as the asthenosphere.
Is the lower portion of the crust and the upper portion of the mantle called the core?
It is the Asthenosphere
What is the weak upper portion of the mantle which behaves plastically?
the asthenosphere
What contains the lower mantle?
The mantle extends to the core-mantle interface at approximately 2900 km depth. Thus, the mantle contains the lower portion of the lithosphere, the asthenosphere, and the mesosphere. The crust is made of the upper portion of the lithosphere.
What is the Aesthnosphere?
The asthenosphere is a portion of the upper mantle of the Earth, just below the lithosphere. http://en.wikipedia.org/wiki/Asthenosphere
What portion of the mantle is hot enough to begin melting rocks into magma?
asthenosphere
What is the plastic portion of the upper mantle?
It is called the asthenosphere, the layer directly below the lithosphere.
What is the soft layer of the mantle on which the tectonic plates move?
It Is Known As The Asthenoshere
Is asthenosphere the lower mantle?
No. The asthenosphere is part of the upper mantle.
Does the lithosphere have a greater temperature than the earth's mantle?
The lithosphere is the upper portion of the mantle. Its temperature is around 300 to 500 degrees Celsius. The lower portion of the mantle, which is the asthenosphere, has a temperature of around 4500 degrees Celsius.
