Минералогия и геохимия тонштейнов в углях бейского месторождения минусинского бассейна

Translated title of the contribution: Mineralogy and geochemistry of tonsteins in the beysk coal deposit of the minusinsk coal Basin

Alexey V. Vergunov, Sergey I. Arbuzov, Victor M. Sobolenko

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The relevance of the research is determined by the necessity for assessment of volcanic pyroclastic material impact on formation of geochemical background of rare elements in coal. The main aim is to study the mineralogical and geochemical features of tonsteins and enclosing coals of сhernogorskaya suite in the Beysk coal deposit (Minusinsk coal basin). Objects of the research are tonsteins and enclosing coals of сhernogorskaya suite in the Beysk coal deposit (Minusinsk coal basin). Methods: sampling of coal seams of сhernogorskaya suite in the Beysk coal deposit; chemical composition is estimated with inductive: ly coupled plasma mass:spectrometry, instrumental neutron activation analysis, x:ray fluorescence methods; mineral composition is de: fined with optical microscopy, petrographic analysis, scanning electron microscopy, x:ray diffractometry. Results. The paper studies mineralogical and geochemical characteristics of the tonsteins in chernogorskaya suite of the Beysk coal de: posit (Minusinsk coal basin). Tonsteins of the Beysk deposit are divided into two types: 1. tonsteins of kaolinite (70–100 %) composi: tion, 2. tonsteins of mixed composition. Few kaolinite seams contain P 2 O 5 up to 20 %. Integrated mineral and geochemical analysis al: low determining the composition of the initial ash material, which served as a source for formation of tonsteins. Tonsteins formed from felsic volcanogenic pyroclastics are predominant; tonsteins of intermediate volcanic ash are less widespread. Tonsteins formed from ma: fic and alkaline:base volcanic material are rare. Investigations show that volcanogenic pyroclastics played a significant role in accumula: tion of rare:earth elements, Zr, Hf, Ta, Nb, Y, Th, and U in coals of сhernogorskaya suite in the Beysk coal deposit. We also discussed possible sources of ashes that formed the tonsteins.

Original languageRussian
Pages (from-to)155-166
Number of pages12
JournalBulletin of the Tomsk Polytechnic University, Geo Assets Engineering
Volume330
Issue number2
DOIs
Publication statusPublished - 1 Jan 2019

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ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology
  • Waste Management and Disposal
  • Economic Geology
  • Management, Monitoring, Policy and Law

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