The Exotic Inim Block of the Argun Superterrane of the Central Asian Fold Belt: Results of U–Th–Pb Geochronological (LA-ICP-MS) and Sm–Nd Isotopic–Geochemical Studies
- 作者: Ovchinnikov R.1, Sorokin A.1, Kotov A.2, Sal’nikova E.2, Kovach V.2, Sorokin A.1
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隶属关系:
- Institute of Geology and Natural Management, Far East Branch, Russian Academy of Sciences
- Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
- 期: 卷 484, 编号 2 (2019)
- 页面: 151-155
- 栏目: Geology
- URL: https://journals.rcsi.science/1028-334X/article/view/194597
- DOI: https://doi.org/10.1134/S1028334X19020259
- ID: 194597
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详细
The results of studies indicate that the age of the protoliths of garnet-bearing biotite–sericite–muscovite schists of the Inim Block is <991 Ma, and they are derived from rocks of the Neo-, Meso-, and Paleoproterozoic (as well as Archean) crust. This suggests that the Inim Block is exotic relatively to the Argun Superterrane due to the formation of the protolith of its metasedimentary rocks largely from erosion products of the Early Precambrian continental crust, the presence of which within the Argun Superterrane is not proven. It is not excluded that the Inim Block is a fragment of the Dzhugdzhur–Stanovoi Superterrane implanted in the structure of the Argun Superterrane as a result of Mesozoic tectonic events.
作者简介
R. Ovchinnikov
Institute of Geology and Natural Management, Far East Branch, Russian Academy of Sciences
编辑信件的主要联系方式.
Email: Ovchinnikov@ignm.ru
俄罗斯联邦, Blagoveshchensk, 675000
A. Sorokin
Institute of Geology and Natural Management, Far East Branch, Russian Academy of Sciences
Email: Ovchinnikov@ignm.ru
俄罗斯联邦, Blagoveshchensk, 675000
A. Kotov
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
Email: Ovchinnikov@ignm.ru
俄罗斯联邦, St. Petersburg, 199034
E. Sal’nikova
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
Email: Ovchinnikov@ignm.ru
俄罗斯联邦, St. Petersburg, 199034
V. Kovach
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
Email: Ovchinnikov@ignm.ru
俄罗斯联邦, St. Petersburg, 199034
A. Sorokin
Institute of Geology and Natural Management, Far East Branch, Russian Academy of Sciences
Email: Ovchinnikov@ignm.ru
俄罗斯联邦, Blagoveshchensk, 675000