DIFFUSION OF WATER AND OXYGEN IN QUARTZ: REACTION-DIFFUSION MODEL

dc.contributor.author	Doremus R.H.
dc.date.accessioned	2020-12-29T10:10:04Z
dc.date.available	2020-12-29T10:10:04Z
dc.date.issued	1998
dc.identifier	https://elibrary.ru/item.asp?id=88400
dc.identifier.citation	Earth and Planetary Science Letters, 1998, , 1, 43-51
dc.identifier.issn	0012-821X
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/21660
dc.description.abstract	A mechanism of diffusion of isotopically tagged water in crystalline quartz by molecular diffusion and network exchange is compared to previous experiments. Three experimental factors are explained by this mechanism. (1) The apparent diffusion coefficient is proportional to the fugacity of the water vapor in the gas phase. (2) The ratio of apparent diffusion coefficients at 800°C in deuterium-hydrogen exchange to 18O-16O exchange is 4.7(10)5. (3) Below 700°C the measured diffusion coefficients become time dependent. This diffusion-exchange mechanism is valid for a wide variety of crystalline and amorphous oxides.
dc.subject	DIFFUSION
dc.subject	QUARTZ
dc.subject	WATER
dc.subject	OXYGEN
dc.subject	HYDRATION
dc.title	DIFFUSION OF WATER AND OXYGEN IN QUARTZ: REACTION-DIFFUSION MODEL
dc.type	Статья

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