Asthenosphere

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Asthenosphere Meaning and Definition in Dictionary

Definitions from Wordnet 2.0


  • the lower layer of the crust

Definitions from Wiktionary


  • the lower layer of the crust

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Asthenosphere Meaning and Definition in Wikipedia


The asthenosphere is part of earth's mantle. It is about 100 km to 350 km under the surface. It is the lower part of the upper mantle, and behaves as a hot viscous liquid.

It consists of hot, weak material that can be deformed like silly putty. That means it is capable of gradual flow. It is under the lithosphere.



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