Isotopic-geochemical characteristics of the ore-bearing ultramafic-mafic intrusions of western Taimyr,Russia |
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| Authors: | I Yu Badanina K N Malitch A P Romanov |
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| Institution: | 1. Zavaritsky Institute of Geology and Geochemistry, Ural Branch, Russian Academy of Sciences, Pochotvy per. 7, Yekaterinburg, 620075, Russia
2. Krasnoyarsk Research Institute of Geology and Mineral Resources, pr. Mira 55, Krasnoyarsk, 660049, Russia
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| Abstract: | The composition and isotopic-geochemical peculiarities of zircons from the ore-bearing ultramafic-mafic intrusions of western Taimyr that are promising for finding Pt-Cu-Ni mineralization were characterized for the first time. The similar U-Pb age of zircons from the Binyuda and Dyumaltei intrusions (248.3 ± 13 and 244.4 ± 2.4 Ma, respectively) indicates that the intrusions were formed almost synchronously with tholeiitic basalts of the Siberian Platform. The age and Nd-Sr data of intrusions of western Taimyr are distinct from those of economic ore-bearing intrusions of the Noril’sk province characterized by long-term magmatic evolution of the rocks and different material sources. |
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