A MINIMUM U-PB AGE FOR SIBERIAN FLOOD-BASALT VOLCANISM

dc.contributor.author	Kamo S.L.
dc.contributor.author	Krogh T.E.
dc.contributor.author	Czamanske G.K.
dc.date.accessioned	2020-12-05T10:57:25Z
dc.date.available	2020-12-05T10:57:25Z
dc.date.issued	1996
dc.identifier	https://elibrary.ru/item.asp?id=31707528
dc.identifier.citation	Geochimica et Cosmochimica Acta, 1996, , 18, 3505-3511
dc.identifier.issn	0016-7037
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/20468
dc.description.abstract	Establishing an accurate and precise age for Siberian flood-basalt volcanism is of great importance in evaluating causes for the unequaled mass extinction of flora and fauna at the Permian-Triassic boundary. We report a new, minimum U-Pb age obtained from zircon and baddeleyite from the mineralized Noril'sk I intrusion that cuts the lower third of this rapidly deposited, 3500-m-thick volcanic sequence near Noril'sk. This 251.2 ± 0.3 (2σ) Ma age is within analytical error of the SHRIMP U-Pb age for zircon from the Permian-Triassic boundary at Meishan, South China [251.1 ± 3.6 Ma (2σ)], and confirms Siberian basaltic volcanism as a possible contributor to the mass extinction.
dc.subject	Permian	en
dc.subject	Triassic	en
dc.title	A MINIMUM U-PB AGE FOR SIBERIAN FLOOD-BASALT VOLCANISM
dc.type	Статья
dc.subject.age	Paleozoic::Permian	en
dc.subject.age	Mesozoic::Triassic	en
dc.subject.age	Мезозой::Триасовая	ru
dc.subject.age	Палеозой::Пермская	ru

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