Age of the Early Precambrian (?) Intrusive Complexes of the Northern Bureya Continental Massif, Central Asian Fold Belt
- Authors: Ovchinnikov R.O.1, Sorokin A.A.1, Kudryashov N.M.2
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Affiliations:
- Institute of Geology and Nature Management, Far East Branch, Russian Academy of Sciences
- Institute of Geology, Kola Science Center, Russian Academy of Sciences
- Issue: Vol 12, No 4 (2018)
- Pages: 289-302
- Section: Article
- URL: https://journals.rcsi.science/1819-7140/article/view/211420
- DOI: https://doi.org/10.1134/S181971401804005X
- ID: 211420
Cite item
Abstract
It is established that the igneous rocks of the northern Bureya continental massif, which are ascribed to the Amur, Drevnyaya Bureya, and Nyatygran complexes, are Late Paleozoic and Early Mesozoic in age, not early Precambrian as previously assumed. The ages obtained correspond to two stages of magmatic activity: ~264 and ~194 Ma. These stages are clearly manifested in the other continental massifs of the Central Asian Fold Belt, which suggest the common tectonic origin of the magmatic activity. All of the studied igneous rocks ascribed to the Amur, Drevnyaya Bureya, and Nyatygran complexes, despite their Late Paleozoic and Mesozoic ages, bear traces of structural–metamorphic transformations.
About the authors
R. O. Ovchinnikov
Institute of Geology and Nature Management, Far East Branch, Russian Academy of Sciences
Email: nik@geoksc.apatity.ru
Russian Federation, Blagoveshchensk, 675000
A. A. Sorokin
Institute of Geology and Nature Management, Far East Branch, Russian Academy of Sciences
Author for correspondence.
Email: sorokin@ascnet.ru
Russian Federation, Blagoveshchensk, 675000
N. M. Kudryashov
Institute of Geology, Kola Science Center, Russian Academy of Sciences
Author for correspondence.
Email: nik@geoksc.apatity.ru
Russian Federation, Apatity, Murmansk oblast, 184209