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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]
Presents the first comprehensive overview of the composition and structure of the Earth’s lower mantle; Summarizes geological, mineralogical, experimental and geophysical data on the Deep Earth; Broadens readers’ understanding and presents a compositional model of the lowermost mantle and geodynamic processes at the core/mantle boundary
The chemical composition of Earth's lower mantle is indispensable for understanding its origin and evolution. Earth's lower-mantle composition is reviewed from an integrated mineral physics, geophysical, geochemical, and geodynamical perspective.
1 Ιαν 2021 · Earth’s lower mantle represents the largest volume of any depth shell on Earth. It is unique in that its chemistry, structure, dynamics, and evolution represent a time-integrated effect of the chemistry and dynamics of the surface (lithosphere, asthenosphere) and lowermost mantle (D″, ULVZ, LLSVP, and CMB) boundary layers.
2 Μαΐ 2008 · Understanding Earth's lower mantle requires putting recent seismic and mineral physics discoveries into a self-consistent, geodynamically feasible context. Two nearly antipodal large low-shear-velocity provinces in the deep mantle likely represent chemically distinct and denser material.
The Earth's Lower Mantle. pp.23-46. There are three major sources of information about the composition of the lower mantle: high P–T experiments, theoretical calculations, and geological...
Understanding Earth's lower mantle requires putting recent seismic and mineral physics discoveries into a self-consistent, geodynamically feasible context. Two nearly antipodal large...
