Earth Science Frontiers ›› 2020, Vol. 27 ›› Issue (5): 262-279.DOI: 10.13745/j.esf.sf.2020.8.2

Special Issue: Research Articles (English)

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Yoko-Dovyren layered dunite-troctolite-gabbro massif, North Baikal region, Russia: Structure, composition and use of mineral raw materials

Svetlana S. Timofeeva1,*(), Evgeniy V. Kislov2, Lyudmila I. Khudyakova3   

  1. 1. Industrial Ecology and Life Safety Department of Irkutsk National Research Technical University, Federal State Budget Educational Institution of Higher Education, Irkutsk, Russia
    2. Laboratory of Geochemistry and Ore Formation Processes, Geological Institute of the Siberian Branch of the Russian Academy of Sciences, Federal State Budgetary Institution of Science, Ulan-Ude, Russia
    3. Laboratory of Chemistry and Technology of Natural Raw Materials, Baikal Institute of Nature Management of the Siberian Branch of the Russian Academy of Sciences, Federal State Budgetary Institution of Science, Ulan-Ude, Russia
  • Received:2020-06-21 Revised:2020-08-05 Online:2020-09-25 Published:2020-09-25
  • Contact: Svetlana S. Timofeeva

Abstract:

The Yoko-Dovyren layered dunite-troctolite-gabbro massif is located in a folded frame of the South Siberian Craton (North Baikal region, Russia). The massif structure has been studied in detail in the thickest central part. The base of the section is composed of plagioclase peridotites of the endocontact, turning into the main stratigraphic sequence of five zones corresponding to changes in cumulus associations (from bottom to top): dunite → troctolite → olivine gabbro → olivine gabbronorite → quartz gabbronorites and pigeonite-containing gabbro. Among the mineral resources of the massif are sulfide copper-nickel ores, rocks with low-sulfide mineralization of platinum group elements and other mineralization, and chromitites. In addition, the massif contains various types of nonmetallic raw materials, including boron mineralization, diopside, and magnesium silicate rocks. These include dunites, wehrlites and troctolites, which are of high quality. They are promising for obtaining building materials (cements, concretes, asphalt concretes and building ceramics). The solution to this issue is important from the point of view of the integrated use of mineral raw materials in the development of mineral deposits, which allows for establishing environmentally safe mining works.

Key words: ultramafic-mafic complexes, Yoko-Dovyren layered dunite-troctolite-gabbro massif, sulfide copper-nickel ores, PGE mineralization, magnesium silicate rocks, building materials

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