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Mekhonoshin, A. S.Irkutsk State Technical University,Siberian Branch of the Russian Academy of Sciences
(författare)
Relationship between platinum-bearing ultramafic-mafic intrusions and large igneous provinces (exemplified by the Siberian Craton)
- Artikel/kapitelEngelska2016
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GeoScienceWorld,2016
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12 s.
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LIBRIS-ID:oai:lup.lub.lu.se:5f023752-e265-479b-90e0-caf7309ad8cb
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https://lup.lub.lu.se/record/5f023752-e265-479b-90e0-caf7309ad8cbURI
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https://doi.org/10.1016/j.rgg.2015.09.020DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
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This study aims at summarizing available geological and geochemical data on known Proterozoic platinum-bearing ultramafic-mafic massifs in the south of Siberia. Considering new data on geochemistry and geochronology of some intrusions, it was feasible to compare ore-bearing complexes of different time spans and areas and to follow their relationships with the recognized large igneous provinces. In the south of Siberia, the platinum-bearing massifs might be united into three age groups: Late Paleoproterozoic (e.g., Chiney complex, Malozadoisky massif), Late Mesoproterozoic (e.g., Srednecheremshansky massif), and Neoproterozoic (e.g., Kingash complex, Yoko-Dovyren massif, and massifs in the center of the East Sayan Mts.). In most massifs but Chiney the initial magmas are magnesium-rich. On paleogeodynamic reconstructions, the position of the studied massifs is the evidence that three most precisely dated events in North Canada continued into southern Siberia: In the period 1880-1865 Ma, it was the Ghost-Mara River-Morel LIP; at 1270-1260 Ma, the Mackenzie LIP; and at 725-720 Ma, Franklin LIP. In Siberia, the mostly productive massifs with respect to PGE-Ni-Cu mineralization are those linked with the Franklin LIP: Verkhny Kingash, Yoko-Dovyren, and central part of the Eastern Sayan Mountains, e.g., Tartay, Zhelos, and Tokty-Oy.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Ernst, R.Tomsk State University,Carleton University
(författare)
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Soderlund, U.Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science(Swepub:lu)geol-uso
(författare)
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Hamilton, Michael A.University of Toronto
(författare)
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Kolotilina, T. B.Siberian Branch of the Russian Academy of Sciences,Irkutsk State Technical University
(författare)
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Izokh, A. E.Novosibirsk State University,V.S. Sobolev Institute of Geology and Mineralogy
(författare)
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Polyakov, G. V.V.S. Sobolev Institute of Geology and Mineralogy
(författare)
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Tolstykh, N. D.V.S. Sobolev Institute of Geology and Mineralogy
(författare)
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Irkutsk State Technical UniversitySiberian Branch of the Russian Academy of Sciences
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Russian Geology and Geophysics: GeoScienceWorld57:5, s. 822-8331068-7971
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