URANIUM-LEAD AGE OF GRANULITES OF THE KURUL'TA COMPLEX, ALDAN SHIELD

dc.contributor.author	Bibikova Ye.V.
dc.contributor.author	Gracheva T.V.
dc.contributor.author	Drugova G.M.
dc.contributor.author	Makarov V.A.
dc.contributor.author	Morozova I.M.
dc.date.accessioned	2020-10-06T05:07:27Z
dc.date.available	2020-10-06T05:07:27Z
dc.date.issued	1989
dc.identifier	https://elibrary.ru/item.asp?id=31088167
dc.identifier.citation	Transactions (Doklady) of the USSR Academy of Sciences. Earth Science Sections, 1989, , 2, 201-204
dc.identifier.issn	0891-5571
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/17719
dc.description.abstract	The question of the age of oldest rocks on the Aldan shield is keenly debated. We analyze the results of our uranium-lead isotope dating of accessory zircons from mafic rocks of the Kurul'ta complex. This Early Archean complex is part of the Olekma fold system and is regarded as one of the oldest in the region, containing supracrustal rocks. It forms separate blocks, arranged along the periphery of this fold system. We have been able for the first time to date the Early Archean granitization of rocks of the Kurul'ta complex, which occurred 3460 ± 16 m.y. ago under conditions of the granulite metamorphic facies. Therefore, the Kurul'ta complex of the Aldan shield can quite rightly be regarded as one of the oldest.
dc.subject	Archean	en
dc.title	URANIUM-LEAD AGE OF GRANULITES OF THE KURUL'TA COMPLEX, ALDAN SHIELD
dc.type	Статья
dc.subject.age	Precambrian::Archean	en
dc.subject.age	Докембрий::Архей	ru

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