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Early to Middle Jurassic history of the southern Siberian continent (Transbaikalia) recorded in sediments of the Siberian Craton: Sm-Nd and U-Pb provenance study

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dc.contributor.author Demonterova E.
dc.contributor.author Ivanov A.
dc.contributor.author Mikheeva E.
dc.contributor.author Arzhannikova A.
dc.contributor.author Frolov A.
dc.contributor.author Arzannikov S.
dc.contributor.author Bryanskiy N.
dc.contributor.author Pavlova L.
dc.date.accessioned 2018-04-05T07:09:11Z
dc.date.available 2018-04-05T07:09:11Z
dc.date.issued 2017
dc.identifier.issn 0037-9409
dc.identifier.uri http://dspace.kpfu.ru/xmlui/handle/net/129563
dc.description.abstract © SGF, Published by EDP Sciences 2017. The deposition of Jurassic continental sedimentary rocks in the southern part of the Siberian continent (Transbaikalia) reflects the intensification of tectonomagmatic processes in this region. The most likely cause of this intensification was associated with the formation and development of the Mongol-Okhotsk orogenic belt. The latter was controlled in its turn by the closure of the Mongol-Okhotsk Ocean, for which the timing of its closure, as well as the formation of a collisional orogeny and its subsequent collapse are still under debate. We address this question by studying sediments of the Irkutsk Basin, which were deposited in a short time span in the Middle Jurassic, most likely during the Aalenian. The Sm-Nd data for bulk-rock sandstones demonstrate that the youngest samples of the Irkutsk Basin are characterized by a prominent contribution from a source within the juvenile crust of the Mongol-Okhotsk orogenic belt. U-Pb detrital zircon ages concur with the Sm-Nd data and show that the amount of material derived from local cratonic sources decreased in time whereas material from the remote Transbaikalian sources increased. Our data provide evidence that mountain growth in Transbaikalia intensified rapidly close to the Early and Middle Jurassic boundary.
dc.relation.ispartofseries Bulletin de la Societe Geologique de France
dc.subject Irkutsk Basin
dc.subject Jurassic
dc.subject Mongol-Okhotsk Ocean
dc.subject Siberia
dc.subject Sm-Nd
dc.subject U-Pb
dc.title Early to Middle Jurassic history of the southern Siberian continent (Transbaikalia) recorded in sediments of the Siberian Craton: Sm-Nd and U-Pb provenance study
dc.type Conference Paper
dc.relation.ispartofseries-issue 1-2
dc.relation.ispartofseries-volume 188
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS00379409-2017-188-12-SID85026624904


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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