Geology of Ore Deposits

, Volume 60, Issue 6, pp 486–496 | Cite as

Genesis of a Magnetite Layer in the Gabbro-10 Intrusion, Monchegorsk Complex, Kola Region: U–Pb SHRIMP-II Dating of Metadiorites

  • N. Yu. GroshevEmail author
  • P. V. Pripachkin
  • B. T. Karykowski
  • A. V. Malygina
  • N. V. Rodionov
  • B. V. Belyatsky


The Gabbro-10 intrusion is located in the southeastern part of the Early Proterozoic Monchegorsk layered complex of the Kola region. The intrusion, 1.4 × 0.7 km in size, is composed of metagabbroic rocks and metadiorites with a sandwiched magnetite layer up to 2 m thick. For the first time, U–Pb SHRIMP-II ages were determined for zircon and baddeleyite from metadiorites with magnetite dissemination. The age of magmatic crystallization of baddeleyite (2498 ± 6 Ma) supports the intrusive origin of these rocks and the relationship of V–Ti magnetite mineralization with the ore-magmatic system of the Monchegorsk complex.


magnetite zircon baddeleyite U–Pb SHRIMP dating Gabbro-10 intrusion Monchegorsk complex 


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© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • N. Yu. Groshev
    • 1
    Email author
  • P. V. Pripachkin
    • 1
  • B. T. Karykowski
    • 2
  • A. V. Malygina
    • 1
  • N. V. Rodionov
    • 3
  • B. V. Belyatsky
    • 3
  1. 1.Geological Institute, Kola Science CenterRussian Academy of SciencesApatityRussia
  2. 2.School of Earth and Ocean SciencesCardiff UniversityCardiffUK
  3. 3.Karpinsky Russian Geological Research InstituteSt. PetersburgRussia

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