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Article Dans Une Revue Elements Année : 2008

The Earth's lower mantle and core

Résumé

More than 90 percent of the Earth's mass is compose silicon and magnesium, distributed among a metal-rich of iron, oxygen, silicon and magnesium, distributed among a metal-rich core, a silicate-rich mantle and more highly fractionated crustal rocks (less than 1% of the total). Mantle and core compositions can be approximated quite easily provided the bulk-Earth composition is assumed to be the same as that of appropriate meteorites. Critical mineral-physics data, some of which are reviewed in this article, are then needed to develop viable compositional and thermal Earth models, thus leading to a better knowledge of the deepest rocks in the Earth.

Domaines

Minéralogie
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Dates et versions

hal-00613983 , version 1 (08-08-2011)

Identifiants

Citer

G. Fiquet, F. Guyot, J. Badro. The Earth's lower mantle and core. Elements, 2008, 4 (3), pp.177-182. ⟨10.2113/GSELEMENTS.4.3.177⟩. ⟨hal-00613983⟩
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