Earth’s Layers: (Essay Example), 375 words GradesFixer.
The mantle is Earth’s second layer. The mantle has two main parts, the upper mantle and the lower mantle. The upper mantle is attached to the layer above it called the crust.Together the crust and the upper mantle form a fixed shell called the lithosphere, which is broken into sections called tectonic plates.Directly below the lithosphere is a less fixed, warmer region of the upper mantle.The lower mantle is the deeper part of the mantle. It is a thin. sheet like layer that lies between the upper mantle and the core. The lower mantle seems to be fairly seismically uniform.The mantle represents the interior of the Earth between the surface or crust and the metallic core. Scientists have developed tools based on seismology to study the upper and lower mantle. It is possible to compare and contrast the upper and lower mantle based on location, temperature and pressure.
What Are Some Facts About Earth's Lower Mantle? The Earth's lower mantle is the largest part of the mantle at 1,400 miles thick, and is made of dense rock so hot it exists almost in liquid form. The lower mantle, or lower mesosphere, is one of the three main layers that make up the Earth, along with the upper mantle and the Earth's core.The mantle was further subdivided at a depth of 670 kilometers into upper and lower layers, with a hint of a layer a couple of hundred kilometers thick at the bottom of the lower mantle. 11. This is the dominant problem to constraint the mineral composition of the Earth's lower mantle.
The mantle is the mostly-solid bulk of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth’s total volume.
