What Is the Mantle Made Of?


Quick Answer

The mantle consists of four layers comprised of semisolid hot, dense rock. The mantle is one of the three main layers of the Earth, and is located between the Earth's crust and its core.

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Full Answer

The uppermost layer of the mantle is called the lithosphere, which is similar in composition to the Earth's crust. The lithosphere is comprised of many floating segments which rest on the second layer of the mantle called the athenosphere. The movement of these segments is responsible for tectonic plate shifting, continental drift, and other geological processes. The upper mantle is located below the athenosphere, and is more solid than the previous layer. The deepest layer is known as the lower mantle, which encases the Earth's core in hot, dense rock.

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