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