S DIFFUSIVITY IN FE-NI-S-P MELTS

dc.contributor.author	Majewski E.
dc.contributor.author	Walker D.
dc.date.accessioned	2020-12-29T05:12:00Z
dc.date.available	2020-12-29T05:12:00Z
dc.date.issued	1998
dc.identifier	https://elibrary.ru/item.asp?id=76355
dc.identifier.citation	Earth and Planetary Science Letters, 1998, , 3, 823-830
dc.identifier.issn	0012-821X
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/21639
dc.description.abstract	Soret diffusion rise times were observed and resolved for Fe-Ni-S-P melts at 10 kbar in thermal gradients between 1300 and 1450°C. A steady-state separation of S-rich components to the hot end of the ~2 mm long liquid charges is achieved in about 20 minutes. Chemical diffusivities of about 10-5 cm2/s are consistent with these observations and those of the compaction velocity of aggregates of crystalline Fe metal against the cold end of our experiments. These rapid diffusivities are not rapid enough for diffusion to be an important agent of bulk mass transfer in the addition or extraction of light elements in the Earth's core.
dc.subject	THERMAL DIFFUSIVITY
dc.subject	SULFUR
dc.subject	CORE
dc.subject	MELTS
dc.title	S DIFFUSIVITY IN FE-NI-S-P MELTS
dc.type	Статья

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