NOBLE GAS CONSTRAINTS ON DEGASSING PROCESSES

dc.contributor.author	Moreira M.
dc.contributor.author	Sarda P.
dc.date.accessioned	2021-02-03T02:20:25Z
dc.date.available	2021-02-03T02:20:25Z
dc.date.issued	2000
dc.identifier	https://elibrary.ru/item.asp?id=31909199
dc.identifier.citation	Earth and Planetary Science Letters, 2000, 176, 3, 375-386
dc.identifier.issn	0012-821X
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/24469
dc.description.abstract	We compare the rare gas elemental ratios measured in glass samples of mid-oceanic ridges (MORs) and oceanic island basalts to current estimates of the same ratios for upper and lower mantle reservoirs. We selected only samples with high 20Ne/22Ne (>11) in order to minimize atmospheric contamination. The combined use of He, Ne and Ar elemental systematics in these samples allows differentiation between the vesiculation process at mantle plumes, which appears to be in open system, and at normal MORs, where vesiculation occurs in a closed system. Such an open system vesiculation has important consequences for the interpretation of heavy rare gas isotopic ratios in primitive plume-derived materials.
dc.title	NOBLE GAS CONSTRAINTS ON DEGASSING PROCESSES
dc.type	Статья

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