New Insights on the Origin of Ultramafic-Mafic Intrusions and Associated Ni-Cu-PGE Sulfide Deposits of the Noril’sk and Taimyr Provinces, Russia
| Autor: | Inna Yu. Badanina, Rais Latypov, Elena Belousova, Sergey F. Sluzhenikin, Kreshimir N. Malitch, William L. Griffin |
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| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Radiogenic nuclide Sulfide Lithology Stable isotope ratio 020209 energy Geochemistry 02 engineering and technology 010502 geochemistry & geophysics 01 natural sciences chemistry Ultramafic rock 0202 electrical engineering electronic engineering information engineering Flood basalt Mafic Geology 0105 earth and related environmental sciences Zircon |
| DOI: | 10.1016/b978-0-12-811159-8.00008-1 |
| Popis: | This study evaluates combined U-Pb, Hf-Nd-Sr-Os radiogenic and Cu-S stable isotope data for the ultramafic-mafic intrusions of the Noril’sk and Taimyr Provinces to provide new insights on the timing and sources of materials involved in the generation of variously mineralized lithologies and associated Ni-Cu-PGE sulfide ores. New isotopic-geochemical evidence indicates a complex geological history for the economic intrusions and associated Ni-Cu-PGE sulfide deposits. We propose that an extended period of concentration of the ore components in staging chambers was a key factor in the formation of economic Ni-Cu-PGE sulfide deposits. This requires a reevaluation of models for the origin of the Norilsk-type intrusions and their relationship to the Siberian flood basalts. A set of key geophysical and isotope-geochemical fingerprints is suggested to guide exploration for Ni-Cu-PGE sulfide ores. |
| Databáze: | OpenAIRE |
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