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Russian Journal of Pacific Geology

, Volume 13, Issue 4, pp 311–319 | Cite as

Postcollision Magmatism of Western Sector of the Mongol–Okhotsk Orogenic Belt: Oxidation Conditions and Metallogenic Zoning

  • L. F. MishinEmail author
  • G. L. Kirillova
  • T. V. Merkulova
  • E. A. Konovalova
Article
  • 3 Downloads

Abstract

The Transbaikal sector of the Mongol–Okhotsk orogenic belt displays a well-consistent geochemical and metallogenic zoning. The axial zone of the belt, which is controlled by the Mongol–Okhotsk suture zone from the north, is composed of reduced ilmenite-series rocks. Tin, tungsten, and rare-metal deposits and occurrences previously distinguished by S.S. Smirnov as a rare-metal belt are confined to the ilmenite-series rocks. The reduced rocks are framed from the north and south by oxidized magnetite-series rocks with chalcophile mineralization. The distribution zones of the ilmenite-series rocks correspond to anomalies with lower gravity and magnetic fields, whereas the magnetite-series oxidized rocks correspond to anomalies with higher gravity and magnetic fields.

Keywords:

ilmenite series magnetite series Mesozoic Mongol–Okhotsk orogenic belt Transbaikalia 

Notes

FUNDING

The work was carried out under the state assignments of the Kosygin Institute of Tectonics and Geophysics, Far East Branch, Russian Academy of Sciences.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • L. F. Mishin
    • 1
    Email author
  • G. L. Kirillova
    • 1
  • T. V. Merkulova
    • 1
  • E. A. Konovalova
    • 1
  1. 1.Kosygin Institute of Tectonics and Geophysics, Far East Branch, Russian Academy of SciencesKhabarovskRussia

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