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asthenosphere
The D" layer (pronounced D double prime layer) forms the base of the Earth's lower mantle. Below this lies the outer core. This boundary zone is marked by a seismic discontinuity known as the Gutenberg discontinuity.
The Earth's crust lies above the mantle.
The lithosphere lies above the asthenosphere. The asthenosphere is where isostatic adjustments take place and it is a very ductile region. Seismic waves pass slower through this region of the earth than they do through the overlying lithosphere.
The mesosphere is an atmospheric layer, which can also be considered a collection of layers. The mesosphere lies above the stratosphere but below the thermosphere, the other two "middle" layers of the atmosphere.
The asthenosphere lies below the lithosphere.
asthenosphere
asthenosphere
Mesosphere lies above the core.
Mesosphere lies above the core.
Spongy Layer
thermosphere
The asthenosphere and the mantle.
solid rock baby
The Asthenosphere is the upper layer of Earth's mantle. It lies below the Lithosphere.
The outer core lies under the mesosphere.
The D" layer (pronounced D double prime layer) forms the base of the Earth's lower mantle. Below this lies the outer core. This boundary zone is marked by a seismic discontinuity known as the Gutenberg discontinuity.