Asthenosphere
From Wikipedia, the free encyclopedia.

The Asthenosphere (from the Greek asthenia, "weakness") is the region of the Earth between 100-700km below the surface. This is the plastic (semi-molten) upper mantle.

See also: Lithosphere

Refer to Earth for detailed information on the interior of the planet.

The original article can be found at: http://en.wikipedia.org/wiki/Asthenosphere.
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