OXYGEN ISOTOPE ZONING OF THE GREISEN ORE BODIES OF THE AKCHATAU DEPOSIT

dc.contributor.author	Bastrakov Ye.N.
dc.contributor.author	Korotayev M.Yu.
dc.contributor.author	Matveyeva S.S.
dc.contributor.author	Suvorova V.A.
dc.date.accessioned	2020-10-09T08:55:40Z
dc.date.available	2020-10-09T08:55:40Z
dc.date.issued	1989
dc.identifier	https://elibrary.ru/item.asp?id=31128342
dc.identifier.citation	Transactions (Doklady) of the USSR Academy of Sciences. Earth Science Sections, 1989, , 4, 202-205
dc.identifier.issn	0891-5571
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/17838
dc.description.abstract	The authors describe the fractionation of oxygen isotopes during the generation of horizontal and vertical metasomatic zoning in the typical greisen-rare metal Akchatau deposit in Central Kazakhstan. The oxygen isotope distribution (δ18O) in quartz has been analyzed, the only mineral present in all types of greisens in this deposit and in ore veins in them. The authors ascribe the oxygen-isotope zoning of the greisen ore bodies to partitioning of 18O and 16O among coexisting phases of the flashing hydrothermal solutions, followed by vertical separation of those phases as they percolated upward. The frontal flows of the gas phase caused a decrease in the δ18Oqz values of the metasomatites and veins, while the lagging flows of the residual liquid phase tended to increase these values.
dc.title	OXYGEN ISOTOPE ZONING OF THE GREISEN ORE BODIES OF THE AKCHATAU DEPOSIT
dc.type	Статья

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