Yes, the aesthenosphere is the part of the upper mantle that is highly viscous and mechanically weak behaving as a ductile solid.
No. The asthenosphere is part of the upper mantle.
asthenosphere
The asthenosphere is part of the mantle, one of several layers.
Yes. The asthenosphere is a part of the upper mantle.
Upper Mantle
The Asthenosphere is part of the Mantle of the Earth
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.
The asthenosphere is the upper part of the upper mantle.
The asthenosphere
Asthenosphere
The Asthenosphere.
A portion of the upper mantle known as the asthenosphere.