Kurmeliov, I.I.

Slivnaia, E.

Tokar, L.O.

Zakharov, Volodymyr

English

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Volodymyr Zakharov I.I. Kurmeliov, research supervisor E. Slivnaia, research supervisor L.O. Tokar, language adviser SHEI “National Mining University”, Dnipropetrovsk  Geochemical Characteristics of Snezhnianskaia Zone Coal-bearing Rocks  Lithochemical analysis of coal-bearing rocks of early Carbon (С14) and middle Carbon (С20, С21, С22, С23) gives ability to recognize such regularities: Comparison of mean compositions of elements with abundance ratios by means of concentration factors estimating shows that each type of coal-bearing rocks of early Carbon and middle Carbon are significantly enriched in nickel (28.5), cobalt (130), niobium (190), copper (32), and  algam (89). Plumbum (5.14), vanadium (5.8), wolframium (3.3), chrome (6.45), germanium (5.5), lithium (8.4), manganese (5.1), zinc (8), and scandium (8.8) show lower concentration factor. There are no significant differences in chemical elements distribution on early Carbon and middle Carbon.  Within lower part of Snezhnianskaia zone there are recognized epigenetic mercury scattering halos with 2х10-6 – 1х10-5% content. They are located between Olkhovski and Saur-Mogylski oversteps, and westward of them. Within this very zone part, there are explored numerous low-intensive and medium-intensive plumbum, vanadium, gallium, nickel, cobalt, molybdenum, lithium, copper, arsenic, zinc, and argentum scattering halos. Linear efficiency on samples in which important (3х10-6% and more) mercury content was estimated to analyze the law of mercuric abnormalities distribution. As for the age, maximum mercury efficiency is associated with С20 series – 73% of specified total zonal efficiency. Sandy shales in С20 series are of maximum efficiency to be 53% of specified total zonal efficiency. The greatest efficiency values are in the south end of area under study – within a segment with intensive development of disjunctive structure. Considerations of mercury content estimations help to conclude that sandstones and sandy shales have the highest figures (11.2% and 11.3% accordingly). As for the age, sandstones and sandy shales of  С23 series, and sandstones of  С23 series have the highest values (12.5%, 17.7%, and 11.3% accordingly). 148

Geochemical Characteristics of Snezhnianskaia Zone Coal-bearing Rocks

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Geochemical Characteristics of Snezhnianskaia Zone Coal-bearing Rocks

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