First Evidence of Middle Triassic Basic Magmatism in the Southwestern Part of the Dzhugdzhur–Stanovoi Superterrane (Ilikan Terrane)
- Authors: Buchko I.V.1, Sorokin A.A.1, Rodionov A.A.1, Kudryashov N.M.2
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Affiliations:
- Institute of Geology and Nature Management, Far East Branch
- Geological Institute, Kola Research Center
- Issue: Vol 479, No 2 (2018)
- Pages: 448-451
- Section: Geology
- URL: https://journals.rcsi.science/1028-334X/article/view/192723
- DOI: https://doi.org/10.1134/S1028334X18040220
- ID: 192723
Cite item
Abstract
U–Pb ID–TIMS zircon analyses of the Dzhigda gabbro–gabbrodiorite Massif (Ilikan block in the southwestern part of the Dzhugdzhur–Stanovoi superterrane) have been carried out. The results demonstrate that the formation of the massif at 244 ± 5 Ma corresponds to one of the stages of formation of the Selenga–Vitim volcano–plutonic belt. The latter stretches along the southeastern margin of the North Asian Craton along its border with the Mongol–Okhotsk fold belt. This indicates that the Selenga–Vitim volcano–plutonic belt along with granitoids and volcanics comprises Permian–Triassic massifs and that this belt is superimposed onto structures of not only the Selenga–Stanovoi terrane but also the Dzhugdzhur–Stanovoi terrane.
About the authors
I. V. Buchko
Institute of Geology and Nature Management, Far East Branch
Author for correspondence.
Email: inna@ascnet.ru
Russian Federation, Blagoveshchensk, Amur Region, 675000
A. A. Sorokin
Institute of Geology and Nature Management, Far East Branch
Email: inna@ascnet.ru
Russian Federation, Blagoveshchensk, Amur Region, 675000
A. A. Rodionov
Institute of Geology and Nature Management, Far East Branch
Email: inna@ascnet.ru
Russian Federation, Blagoveshchensk, Amur Region, 675000
N. M. Kudryashov
Geological Institute, Kola Research Center
Email: inna@ascnet.ru
Russian Federation, Apatity, 184209