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Geology of Ore Deposits

, Volume 59, Issue 8, pp 687–706 | Cite as

Geochemical and Isotopic Geochemical Characteristics of PGE Mineralization in the Lukkulaisvaara Layered Massif, Karelia, Russia

  • V. S. Semenov
  • S. V. Semenov
  • V. M. Savatenkov
  • V. N. Dech
  • V. A. Glebovitsky
Article
  • 24 Downloads

Abstract

The study of the Lukkulaisvaara layered massif from the Olang group of intrusions in northern Karelia corroborates the important role of supplementary intrusive phases of PGE mineralization. Injection and crystallization of new magma portions result in (1) the formation of potholelike depressions within intrusion and (2) a return to high-temperature olivine-bearing mineral assemblages in the mafic part of section. PGM formation is accompanied by crystallization of secondary minerals in a wide range of temperatures and pressures. To provide insight into these problems, a geochemical study of Nadezhda area has been performed and new data obtained for the distribution of isotopes in the Rb–Sr, Pb–Pb, and Sm–Nd systems.

Keywords

gabbronorite Lukkulaisvaara massif Karelia PGE mineralization postmagmatic alteration geochemical characterization isotopic Rb–Sr Pb–Pb Sm–Nd data 

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • V. S. Semenov
    • 1
  • S. V. Semenov
    • 1
  • V. M. Savatenkov
    • 1
  • V. N. Dech
    • 1
  • V. A. Glebovitsky
    • 1
    • 2
  1. 1.Institute of Precambrian Geology and GeochronologyRussian Academy of SciencesSt. PetersburgRussia
  2. 2.St. Petersburg State UniversitySt. PetersburgRussia

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