East Scandinavian and Noril'sk plume mafic large igneous provinces of Pd-Pt ores

Geological and metallogenic comparison

F. P. Mitrofanov, T. B. Bayanova, A. U. Korchagin, N. Yu Groshev, K. N. Malitch, D. V. Zhirov, A. F. Mitrofanov

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

This paper compares the geological, geophysical, and isotopic geochemical data on the Paleoproterozoic East Scandinavian Pd-Pt province in the Baltic Shield and the Late Paleozoic Noril'sk Pd-Pt province in the Siberian Craton. Both provinces contain large magmatic PGE deposits: low-sulfide in the Baltic Shield and high-sulfide in the Siberian Craton. Multidisciplinary evidence shows that the East Scandinavian mafic large igneous province, which has a plume nature, is intracratonic and was not subjected to the crucial effect of subduction-related and other contamination processes, whereas the Noril'sk province is pericratonic with substantial crustal contamination of the intrusive processes. Low-sulfide Pd-Pt deposits dominate in the East Scandinavian province, while high-sulfide Ni-Cu-PGE deposits play the leading role in the Noril'sk province. The U-Pb, Sm-Nd, and Rb-Sr isotopic data indicate multistage and long-term (tens of millions of years) geological history of mafic large igneous provinces. The plume magmatism with specific geochemistry and metallogeny is probably related to lower mantle sources.

Original languageEnglish
Pages (from-to)305-319
Number of pages15
JournalGeology of Ore Deposits
Volume55
Issue number5
DOIs
Publication statusPublished - Sep 2013
Externally publishedYes

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