HIGH PRESSURE EQUILIBRIUM OF NICKEL AND COBALT BETWEEN METAL AND MANTLE MINERALS - IMPLICATIONS FOR CORE-MANTLE EQUILIBRIUM

dc.contributor.author	Malavergne V.
dc.contributor.author	Guyot F.
dc.contributor.author	Peyronneau J.
dc.contributor.author	Poirier J.P.
dc.date.accessioned	2021-01-09T04:59:50Z
dc.date.available	2021-01-09T04:59:50Z
dc.date.issued	1999
dc.identifier	https://elibrary.ru/item.asp?id=150878
dc.identifier.citation	Geochimica et Cosmochimica Acta, 1999, , 11, 1819-1824
dc.identifier.issn	0016-7037
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/22457
dc.description.abstract	In order to test the effect of very high pressures on the siderophile behaviour of two elements, Ni and Co, we have carried out diamond anvil cell experiments on Ni- and Co-bearing systems, up to 70 GPa. Observation of recovered samples by analytical transmission electron microscopy shows that Ni and Co remain siderophile at least up to 70 GPa, but that their siderophile character decreases with pressure, as already observed in previous studies at lower pressures. Our results also suggest that the abundances of Ni and Co observed in the Earth's upper mantle cannot be explained by very high pressure equilibrium between silicate perovskite, magnesiowustite, and metal.
dc.title	HIGH PRESSURE EQUILIBRIUM OF NICKEL AND COBALT BETWEEN METAL AND MANTLE MINERALS - IMPLICATIONS FOR CORE-MANTLE EQUILIBRIUM
dc.type	Статья

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