40AR-39AR AGE OF SIBERIAN BASALTIC VOLCANISM

dc.contributor.author	Venkatesan T.R.
dc.contributor.author	Kumar A.
dc.contributor.author	Gopalan K.
dc.contributor.author	Al'mukhamedov A.I.
dc.date.accessioned	2020-12-24T03:35:20Z
dc.date.available	2020-12-24T03:35:20Z
dc.date.issued	1997
dc.identifier	https://elibrary.ru/item.asp?id=13268843
dc.identifier.citation	Chemical Geology, 1997, , 3, 303-310
dc.identifier.issn	0009-2541
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/21185
dc.description.abstract	Five of six samples representing the entire stratigraphic sequence (∼3700 m thick) of basaltic flows in the Noril'sk section in the northwestern part of Siberian flood basalt province, Russia yield 40Ar–39Ar plateau ages between 248.3±1.7 Ma and 246.9±2.5 Ma relative to an age of 520.4 Ma for the hornblende standard, MMhb-1. These results clarify some discrepancies in existing data and confirm that eruption of the bulk of Siberian basalts was close to 248 Ma and possibly lasted less than 2 Ma. Although the violence of this volcanism may have caused the massive extinctions at the Permo–Triassic boundary, the onset of changes across this boundary seems to have been distinctly earlier.
dc.subject	Triassic	en
dc.subject	Permian
dc.title	40AR-39AR AGE OF SIBERIAN BASALTIC VOLCANISM
dc.type	Статья
dc.subject.age	Mesozoic::Triassic	en
dc.subject.age	Paleozoic::Permian
dc.subject.age	Мезозой::Триасовая	ru
dc.subject.age	Палеозой::Пермская	ru

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