WebJan 11, 2024 · The definition of the lithosphere is based on how Earth materials behave, so it includes the crust and the uppermost mantle, which are both brittle. Since it is … Webnoun. a thin semifluid layer of the earth (100–200 km thick), below the outer rigid lithosphere, forming part of the mantle and thought to be able to flow vertically and …
Plate tectonics Definition, Theory, Facts, & Evidence
Web23. The movement of the lithospheric plates is facilatated by a soft weak and plastic like layer.Which of the following layer is describe the statement; 24. lithospheric plates is facilitated by a soft weak and plastic-like what layer 25. The movement of the lithospheric plates is facilitated by a soft, weak and plastic-like layer. WebThe meaning of ASTHENOSPHERE is a zone of a celestial body (such as the earth) which lies beneath the lithosphere and within which the material is believed to yield readily to … ruth gregson
Asthenosphere Definition & Meaning - Merriam-Webster
WebMay 6, 2024 · The asthenosphereis the highly viscous, mechanically weak and ductile region of the upper mantle of the Earth. ... In some regions the asthenosphere could … WebThe mantle extends from Moho’s discontinuity to a depth of around 2, 900 km. the upper portion of the mantle is known as the aesthenosphere. The mantle is the main source of magma that forms its way to the surface during volcanic eruptions. It has a density higher than that of the crust. WebApr 4, 2024 · One such part is the lithosphere. As per the lithosphere definition, it is the outer layer that resides on the top of the mantle and underneath the crust. It is the rigid and rocky part of the earth’s inner sections that goes up to 100 km beneath the earth’s crust. This layer of earth lies on the asthenosphere. ruth gresham obituary