A crystallizing dense magma ocean at the base of the Earth’s mantle

S. Labrosse (), J. W. Hernlund and N. Coltice
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S. Labrosse: Laboratoire des sciences de la Terre, Ecole Normale Supérieure de Lyon, Université de Lyon, CNRS UMR 5570, 46 Allée d’Italie, 69364 Lyon Cedex 07, France
J. W. Hernlund: Équipe de Dynamique des Fluides Géologiques, Institut de Physique du Globe de Paris, 4 place Jussieu, 75252 Paris Cedex 05, France
N. Coltice: Laboratoire des sciences de la Terre, Ecole Normale Supérieure de Lyon, Université de Lyon, CNRS UMR 5570, 46 Allée d’Italie, 69364 Lyon Cedex 07, France

Nature, 2007, vol. 450, issue 7171, 866-869

Abstract: If a stable layer of dense melt formed at the base of the mantle early in Earth's history, it would have undergone slow fractional crystallization and could provide an unsampled geochemical reservoir hosting a variety of incompatible geochemical species (most notably the missing budget of heat producing elements).

Date: 2007
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DOI: 10.1038/nature06355

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