The Earth's lower mantle and core | INSTITUT DE PHYSIQUE DU GLOBE DE PARIS

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  The Earth's lower mantle and core

Type de publication:

Journal Article

Source:

Elements, Volume 4, Ticket 3, p.177-182 (2008)

ISBN:

1811-5209

Numéro d'accès:

WOS:000257469900008

Mots-clés:

Minéralogie, UMR 7154

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.