Age and Sources of Metasandstone of the Chiney Subgroup (Udokan Group, Aldan Shield): Results of U–Th–Pb Geochronological (LA–ICP–MS) and Nd Isotope Study

V. P. Kovach; A. B. Kotov; D. P. Gladkochub; E. V. Tolmacheva; S. D. Velikoslavinsky; B. M. Gorokhovsky; V. N. Podkovyrov; N. Yu. Zagornaya; Yu. V. Plotkina

doi:10.1134/S1028334X18090155

Age and Sources of Metasandstone of the Chiney Subgroup (Udokan Group, Aldan Shield): Results of U–Th–Pb Geochronological (LA–ICP–MS) and Nd Isotope Study

作者: Kovach V.P.¹, Kotov A.B.¹, Gladkochub D.P.², Tolmacheva E.V.¹, Velikoslavinsky S.D.¹, Gorokhovsky B.M.¹, Podkovyrov V.N.¹, Zagornaya N.Y.¹, Plotkina Y.V.¹
隶属关系:
1. Institute of Precambrian Geology and Geochronology
2. Institute of the Earth’s Crust, Siberian Branch
期: 卷 482, 编号 1 (2018)
页面: 1138-1141
栏目: Geology
URL: https://ogarev-online.ru/1028-334X/article/view/193991
DOI: https://doi.org/10.1134/S1028334X18090155
ID: 193991

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Results of U–Th–Pb LA–ICP–MS analysis of detrital zircons from metasandstones of the Chiney Subgroup (Udokan Group, Aldan Shield) have been obtained. It has been revealed that rocks of the Paleoproterozoic (about 1.90, 1.98, and 2.50 Ga) and Neoarchean (2.55 and 2.72 Ga) were their provenance sources. Deposition of the Chiney Subgroup occurred in the interval 1.87–1.90 Ga and was separated in time from the accumulation of the Kodar Subgroup siliciclastics (2.1–2.3 Ga).