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ArticleName Basic rocks in ore-bearing mafic–ultramafic complexes and their use in practice
DOI 10.17580/gzh.2019.10.02
ArticleAuthor Khudyakova L. I., Kislov E. V., Voyloshnikov O. V.

Baikal Institute of Nature Management, Siberian Branch, Russian Academy of Sciences, Ulan-Ude, Russia:

L. I. Khudyakova, Senior Researcher, Candidate of Engineering Sciences,
O. V. Voyloshnikov, Leading Researcher, Candidate of Engineering Sciences


Geological Institute, Siberian Branch, Russian Academy of Sciences, Ulan-Ude, Russia

E. V. Kislov, Head of Laboratoty, Candidate of Geologo-Mineralogical Sciences


Mafic-ultramafic complexes occur worldwide. They contain various mineral deposits: nickel-copper, platinum group elements, chromite, titanium magnetite ores, etc. Mining results in huge quanitities of overburden and enclosing dirt rocks. They are accumulated in mining areas and quite often create serious environmental problems. At some deposits, basic rocks prevail in waste. Such rocks need to be utilized and involves in marketable production. The possibility of their use is studied by us in terms of the Yoko-Dovyren troctolite massif (Northern Baikal region). The troctolite zone thickness in massif reaches 1090 m, and its extent is 25 km at least from the southwest on the northeast. As a result of the conducted researches, it is established that crushed stone manufactred from troctolite has high quality. It resists environmental exposure, chemical impact of alkalies and any type radioactive decay. It contains no harmful components and foreign impurity. Sand manufactured from troctolite crushing siftings has high quality too. It can be used in production of building materials, in different type construction works or in road making. Use of waste instead of minerals will allow producing high-quality concrete at minimum cash investments, reducing waste and, thus, mitigating environmental impactt.
The study was supported by the Russian Science Foundation, Project No. 16-17-10129.

keywords Mafic-ultramafic complexes, basic rocks, troctolites, crushed stone, crushing eliminations, concrete fillers, mining industry waste

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