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Article Dans Une Revue Comptes Rendus Géoscience Année : 2009

Grain structure of the Earth's inner core

Résumé

The coarsening rate of an initial grain structure is calculated and compared to the inner core growth rate. An estimate of the present size of the grains in the centre of the core varies from 560 m to 12 km, depending on the value taken for the diffusion coefficient of iron in the core. Regardless of the hypotheses chosen, this size is homogeneous inside the inner core. To cite this article: L. Venet et al., C. R. Geoscience 341 (2009). (C) 2009 Academie des sciences. Published by Elsevier Masson SAS.

Domaines

Matériaux

Dates et versions

hal-00428681 , version 1 (29-10-2009)

Identifiants

Citer

L. Venet, T. Duffar, R. Deguen. Grain structure of the Earth's inner core. Comptes Rendus Géoscience, 2009, 341 (7), pp.513-516. ⟨10.1016/j.crte.2009.06.003⟩. ⟨hal-00428681⟩
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