In the directives of the XIX Congress of the Communist Party of the Soviet Union on the fifth five-year plan for the development of the USSR for 1951-1955 in the field of industry, it is indicated, in particular: "Significantly expand the production of non-ferrous metals. Increase production over the five-year period, approximately in the following amounts: refined copper by 90 percent, lead by 2.7 times, aluminum by at least 2.6 times, zinc by 2.5 times, nickel by 53 percent and tin by 80 percent" [1]. This means an increase in geological exploration work, higher requirements for the search and exploration work carried out in terms of efficiency and comprehensive study of the objects under study. For a comprehensive study of ores, rocks and minerals, for a complete characterization of the constituent elements, spectral analysis at all stages of geological exploration work is especially important.
