Age, sources, and provenances of protoliths of metasedimentary rocks of the Dzheltulak group, Dzheltulak suture

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• 作者：S. D. Velikoslavinskii ; A. B. Kotov ; V. P. Kovach…
• 刊名：Doklady Earth Sciences
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：468
• 期：2
• 页码：545-548
• 全文大小：365 KB
• 刊物主题：Earth Sciences, general;
• 出版者：Springer US
• ISSN：1531-8354
• 卷排序：468

文摘

The results of Sm–Nb isotopic–geochemical studies of metasedimentary and metavolcanic rocks of the Dzheltulak Group of the central part of the Dzheltulak suture, as well as geochronological U–Th–Pb (LA ICP MS) studies of detrital zircons from metasedimentary rocks, which are considered as Paleoproterozoic in current stratigraphic schemes, are presented. The age of the youngest zircons is 170–190 Ma, whereas the age of the last stage of regional metamorphism is 140–150 Ma. Thus, the Dzheltulak Group hosts metasedimentary rocks, the age of the protolith of which ranges from 140–150 to 170–190 Ma. The detrital zircons derived from intrusive and metamorphic rocks of the Selenga–Stanovoi and Dzhugdzhur–Stanovoi superterranes.Original Russian Text © S.D. Velikoslavinskii, A.B. Kotov, V.P. Kovach, E.V. Tolmacheva, A.M. Larin, A.A. Sorokin, A.P. Sorokin, K.L. Wang, E.B. Salnikova, 2016, published in Doklady Akademii Nauk, 2016, Vol. 468, No. 4, pp. 425–428.