A hard, coarse plutonic rock that contains large amounts of olivine.
The upper mantle is made of something called peridodite.
The upper mantle is made of something called peridodite.
The crust is the uppermost part of the earth. It is also the coolest and least dense. While the mantle is a warmer and dense. The mantle is made up of the Asthenosphere and the Lithosphere. The lithosphere floats in many plates on top of the taffy-like asthenosphere. The Lithosphere is made up of the upper part of the mantle and the crust.