ISOTOPIC AGE OF RHYOLITES FROM THE TRIASSIC TURA GROUP OF THE KUSHMURUN GRABEN, THE TURGAI DEPRESSION

dc.contributor.author	Rublev A.G.
dc.contributor.author	Proshin E.E.
dc.contributor.author	Shergina Yu.P.
dc.contributor.author	Bogomolov E.S.
dc.date.accessioned	2021-02-16T10:54:52Z
dc.date.available	2021-02-16T10:54:52Z
dc.date.issued	2001
dc.identifier	https://elibrary.ru/item.asp?id=13368121
dc.identifier.citation	Stratigraphy and Geological Correlation, 2001, 9, 1, 36-42
dc.identifier.issn	0869-5938
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/25040
dc.description.abstract	Isotopic dating showed that rhyolites of the Kushmurun graben are divisible into two groups different in age. One group is close to the Induan-Olenekian boundary in its chronostratigraphic position and has K-Ar and Rb-Sr age of 247 ± 3 Ma. The Rb-Sr isochron age for another group is 162 ± 7 Ma and thus corresponds to the Middle Jurassic. The results obtained suggest that the available stratigraphic subdivision of deposits in the Kushmurun graben should be revised. They also elucidate the isotopic age of the Induan-Olenekian boundary.
dc.subject	Kushmurun graben
dc.subject	Isotopic dating
dc.subject	Triassic
dc.subject	Jurassic
dc.title	ISOTOPIC AGE OF RHYOLITES FROM THE TRIASSIC TURA GROUP OF THE KUSHMURUN GRABEN, THE TURGAI DEPRESSION
dc.type	Статья
dc.subject.age	Mesozoic::Triassic	en
dc.subject.age	Мезозой::Юрская	ru
dc.subject.age	Мезозой::Триасовая	ru
dc.subject.age	Mesozoic::Jurassic	en

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