FORMAL ANALYSIS OF ISOCHRON CONSTRUCTION IN 40AR/ 39AR GEOCHRONOLOGY

dc.contributor.author	Brandt S.B.
dc.contributor.author	Rasskazov S.V.
dc.contributor.author	Brandt I.S.
dc.contributor.author	Ivanov A.V.
dc.date.accessioned	2022-07-18T05:29:18Z
dc.date.available	2022-07-18T05:29:18Z
dc.date.issued	2004
dc.identifier	https://www.elibrary.ru/item.asp?id=13454441
dc.identifier.citation	Geochemistry International, 2004, 42, 81, 728-735
dc.identifier.issn	0016-7029
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/38272
dc.description.abstract	Formal analysis of argon isotope distribution in minerals in terms of Fick's and Arrhenius laws demonstrated that the linear dependency 36Ar/40Ar-39Ar/40Ar is a true isochron with all the corresponding regressions and extrapolations only when the activation energy of diffusion of the radiogenic isotope 40Arrad is equal to that of the nucleogenic isotope 39Ar, and somewhat higher than the activation energy of diffusion of the contaminating component (40Ar, 36Ar)c. The disturbances of the kinetic parameters of argon isotopes (different activation energies of radiogenic and nucleogenic argon) or radiogenic argon losses during geologic history produce a curved distribution and scatter in the Ar-Ar coordinates leading to erroneous interpretations of ages and 36Ar/40Ar values of the contaminating component.
dc.title	FORMAL ANALYSIS OF ISOCHRON CONSTRUCTION IN 40AR/ 39AR GEOCHRONOLOGY
dc.type	Статья

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