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Isotopic-geochemical characteristics of the ore-bearing ultramafic-mafic intrusions of western Taimyr, Russia

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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Correspondence to I. Yu. Badanina.

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Original Russian Text © I.Yu. Badanina, K.N. Malitch, A.P. Romanov, 2014, published in Doklady Akademii Nauk, 2014, Vol. 458, No. 3, pp. 327–329.

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Badanina, I.Y., Malitch, K.N. & Romanov, A.P. Isotopic-geochemical characteristics of the ore-bearing ultramafic-mafic intrusions of western Taimyr, Russia. Dokl. Earth Sc. 458, 1165–1167 (2014). https://doi.org/10.1134/S1028334X14090256

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  • DOI: https://doi.org/10.1134/S1028334X14090256

Keywords

  • Zircon
  • Olivine
  • 206Pb
  • 86Sr
  • Siberian Platform