Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/172539
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- Title
- Results of U-Pb dating of zircon and baddeleyite from the Noril'sk-1 ultramafic-mafic intrusion (Russia)
- Related
- Russian geology and geophysics, Vol. 53, Issue 2, (2012), p.123-130
- DOI
- 10.1016/j.rgg.2011.12.010
- Publisher
- Elsevier
- Date
- 2012
- Author/Creator
- Malitch, K. N
- Author/Creator
- Badanina, I. Y
- Author/Creator
- Belousova, E. A
- Author/Creator
- Tuganova, E. V
- Description
- We present for the first time the mineralogical and isotope-geochemical particularities of zircon and baddeleyite from various rocks of the economic ore-bearing Noril'sk-1 intrusion located in the northwestern part of the Siberian platform. The ultramafic-mafic Noril'sk-1 intrusion hosts one of the world's major economic platinum-group-element (PGE)-Cu-Ni sulphide deposits. A detailed study of crystal morphology and internal structure identify four zircon populations, characterized by different U-Pb (SHRIMP-II) ages. The U-Pb ages of baddeleyite and the defined zircon populations cover a significant time span (from 290 ± 2.8 to 226.7 ± 0.9 Ma). The established U-Pb ages imply that crystallization of baddeleyite and zircon populations corresponds to several stages of protracted evolution of the ore-forming magmatic system (290 ± 2.8, 261.3 ± 1.6, 245.7 ± 1.1, 236.5 ± 1.8, and 226.7 ± 0.9 Ma, respectively) that served as the favorable factor for accumulatio n of magmas and ores of unique scales and concentrations.
- Description
- 8 page(s)
- Subject Keyword
- Baddeleyite
- Subject Keyword
- Protracted evolution
- Subject Keyword
- The Noril'sk-1 ultramafic-mafic intrusion
- Subject Keyword
- U-Pb age
- Subject Keyword
- Zircon
- Resource Type
- journal article
- Organisation
- Macquarie University. National Key Centre for Geochemical Evolution and Metallogeny of Continents (GEMOC)
- Identifier
- http://hdl.handle.net/1959.14/172539
- Identifier
- ISSN:1068-7971
- Identifier
- mq_res-ext-2-s2.0-84855885749
- Language
- eng
- Reviewed
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