Geochemical peculiarities of germanium, arsenic, mercury, beryllium, fluorine and total sulfur in the C8h coal seam of the Dniprovska mine field

Abstract

In the article, the authors establish and analyze the relationship between the contents of germanium, toxic elements and the total sulfur content of the coal seam of the Dniprovska Mine field. In the process of the research, in order to achieve the purpose set in the work, correlation and regression analysis was carried out using methods that are implemented in one of the most popular professional mining and geological information systems for 3D modeling of deposits, statistical processing of mining and geological data and construction of actual mine workings and planning of mining operations – Micromine, and their analysis in geological concepts was performed. It is proved that the distribution of germanium, toxic elements and total sulfur content in the coal seam с8н of the Dniprovska Mine field differ from the Gauss-Laplace and lognormal distributions. It is established that analyzes of graphs of polynomial pair regression models of the relationship between the normalized concentrations of germanium and the contents of toxic elements make it possible to identify different areas of their concentrations, which differ significantly in their nature. It is substantiated that the minimum contents of arsenic, germanium and total sulfur in the coal seam с8н of the Dniprovska Mine were jointly accumulated at the syngenetic stage of its formation. A decrease in the concentrations of germanium with an increase in the content of fluorine, mercury, arsenic, and total sulfur is associated with epigenetic processes, which in this particular case lead to the outcrop of germanium. The synchronous increase in the contents of germanium and beryllium in the area of their low and abnormally low concentrations is due to the compatible accumulation of these elements at the syngenetic stage of formation of the coal seam, and their increase in the area of maximum contents is caused by the manifestation of the empirical regularity of the “Zilbermints law”. It was established that there is a very low correlation between the concentrations of germanium and toxic elements and total sulfur, therefore, the extraction of germanium from the coal seam will not be accompanied by their significant accumulation during technological processes. It is proven that for a more realistic assessment of the central tendency of the content of germanium, toxic elements and total sulfur, it is necessary to use the median values instead of the median values. The influence of syngenetic and epigenetic processes on the nature of the relationship between germanium concentrations, toxic elements and total sulfur content in the coal seam с8н of the Dniprovska Mine was revealed.