Earth's mantle is a layer of silicate rock between the crust and the outer core. It has a mass of 4.01 × 10 24 kg (8.84 × 10 24 lb) and makes up 67% of the mass of Earth. [1] It has a thickness of 2,900 kilometers (1,800 mi) [1] making up about 46% of Earth's radius and 84% of Earth's volume.

Apr 30, 2024 · 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 percent of Earth’s total volume.

A mantle is a layer inside a planetary body bounded below by a core and above by a crust. Mantles are made of rock or ices , and are generally the largest and most massive layer of the planetary body.

Aug 1, 2023 · The four primary layers are the crust, the mantle, the outer core, and the inner core. However, geologists subdivide these layers into a complex structure that better describes the Earth’s intricate composition and behavior.

Nov 5, 2023 · In this comprehensive guide, we’ll explore the scientific meaning of the mantle in depth. We’ll look at the mantle’s composition, physical properties, convection currents, and role in tectonic movement. We’ll also examine how the mantle influences volcanism, earthquakes, and the geodynamo.

The lower mantle, historically also known as the mesosphere, represents approximately 56% of Earth's total volume, and is the region from 660 to 2900 km below Earth's surface; between the transition zone and the outer core. [1]

4 days ago · Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds. ... The ultimate action-packed science and technology magazine bursting ...

Aug 8, 2024 · Examining the composition and dynamics of Earth’s upper mantle—the largest layer of Earth’s interior—can reveal its biogeochemical effects on the marine system. However, it is situated 6 to 70 km below Earth’s surface and is challenging to study.

Jan 14, 2025 · Chemical element - Mantle, Composition, Structure: The mantle comprises that part of the Earth between the Mohorovičić and the Wiechert–Gutenberg discontinuities. It makes up 83 percent of the volume of the Earth and 67 percent of its mass and is thus of decisive importance in determining the bulk composition of the planet.

Earth's mantle plays an important role in the evolution of the crust and provides the thermal and mechanical driving forces for plate tectonics. Heat liberated by the core is transferred into the mantle where most of it (> 90%) is convected through the mantle to the base of the lithosphere.