Ore geology problems and the human factor. part 2. magmatism and mesothermal ore-formation

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The relevance of the research. The coexistence of the granitic, basaltic, metamorphic, polygenetic hypotheses of one and the same hydrothermal deposits of gold, coloured metals (Sn, W, Mo, Cu, Pb, Zn, Ni, Co) formation stimulates investigations directed on correc tion, deepening hydrothermal ore-formation theory and improving, development of the forecast-search criteria of the deposits, neces sary for the search of new subjects and replenishment of the metals mineral products base. The main aim of the research is to assess metalliferous ore-forming solutions sources studying the consistency, content, material ex pression of mesothermal gold deposits formation geologic processes of the south mountainfolded frame of Siberian craton. The methods: study of the formation consistency, mineral-chemical compositions of accompanying granitoid plutons, massifs, ultra metamorphic hearthdome structures dikes of the magmatic rocks, their spatial-time correlations and their relation to oremineral com plexes, complete chemical (wet) silicate analysis of rocks, roentgen-spectral analysis of chemical compositions of minerals, analysis of the isotope compositions of the sulphide sulphur and carbonaceous carbon of ores and nearore metasomatites, petrochemical calcu lations. The results of the research. The paper introduces the proofs of generation of the forming mesothermal gold deposits metalbearing solutions into mantle chambers of the basic melts – the facts of the simultaneous functioning the latters and ore-forming fluids into crust after crystallization of the granitic melts, data about fluid-conducting in hot condition function of the insideore dolerite dikes – along with fractures in the routes of metalbearing solutions rising from the chambers of the generation into forming deposits, the facts of inheritance by the nearore metasomatites (beresites) of petrochemical type insidedike metasomatism (supply K, S, CO2, subtrac tion Na, Si), contrasting anomalies into insidedike and nearore metasomatites of femic elements (P, Ti, Ca, Mg, Fe, Mn), isotope rela tions of the sulphide sulphur and carbonaceous carbon relative to mantle marks. The paper discusses negative influence of the human factor on problem solution which consists in priority of the theoretic ideas about generation of metalliferous solutions into crustal cham bers of granitic magma – suggested by authority instruction idea though it does not correlate with those observed in deposits facts, which are not congruent with theoretic ideas and therefore they are not attracted for estimating the idea viability. Meanwhile the fact of simultaneous functioning of basic melts in mantle and forming mesothermal deposits of coloured metals solutions in crust after cry stallization of granitic melts is proved by existence of aftergranitic tillore, insideore basic dikes – transmitters of information about me talliferous solutions sources. This fact testifies about formation of mesothermal deposits of colour metals and gold on one script, there fore it is recommended to decide the problem of dependence of mesothermal ore-formation by magmatism in coloured metals depo sits according to the programme of the research described in this article.

Original languageEnglish
Pages (from-to)148-170
Number of pages23
JournalBulletin of the Tomsk Polytechnic University, Geo Assets Engineering
Issue number6
Publication statusPublished - 2018


  • After-ore basic dikes
  • Before-ore
  • Carbonaceous carbon
  • Coloured metals
  • Contrasting anomalies of femic elements
  • Dikes-fluidtransmitters
  • Granitoid plutons
  • Human factor
  • Inside-ore
  • Isotope relations of sulphide sulphur
  • Mesothermal deposits of gold
  • Mineral-petrochemic types of the inside-dikes
  • Near-ore metasomatism
  • Ore-formation
  • Relation of magmatism

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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