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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
  • 1 Russian Academy of Sciences, Institute of Geology and Nature Management, Far East Branch, Blagoveshchensk, Amur Region, 675000, Russia , Blagoveshchensk, Amur Region (Russia)
  • 2 Russian Academy of Sciences, Geological Institute, Kola Research Center, Apatity, 184209, Russia , Apatity (Russia)
Type
Published Article
Journal
Doklady Earth Sciences
Publisher
Pleiades Publishing
Publication Date
Apr 01, 2018
Volume
479
Issue
2
Pages
448–451
Identifiers
DOI: 10.1134/S1028334X18040220
Source
Springer Nature
License
Yellow

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.

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