Abstract
The article presents the results of applying the express method of observing the natural impulse electromagnetic field of the Earth to isolate flooded faults in areas adjacent to the Yeristovo quarry. The features of the geological and tectonic structure of the territory of the Yeristovo field are considered. According to the results of the field studies, for the first time, maps of the density of the natural impulse electromagnetic field of the Earth flux were constructed for this area, which made it possible to isolate and trace the positions of watering faults. In addition, to visualize the most difficult fragments of the structure of the plots, three-dimensional models were built. On the basis of the conducted research, it is possible to recommend the use of water catching wells using a reasonably economical and reliable method of observing the natural impulse electromagnetic field of the Earth. It is advisable to lay them in the zones of minimum values of the natural impulse electromagnetic field of the Earth, within the southern parts of the research sites. The use of advanced observations will avoid unproductive costs when drilling water-reducing wells.
Highlights
The development of deposits by the open method, as a rule, is complicated by the water inflows, which are formed mainly due to the opened aquifers, as well as powerful zones of water-borne faults
In the eastern part of the research sites, flooded tectonic disturbances are less pronounced, they are much smaller in width and are characterized by less contrasting values of natural impulse electromagnetic field of the Earth (NIEMFE) level
On the basis of the studies performed, it is possible to recommend the laying of water interceptor wells, which should be carried out within the zones with the minimum values of NIEMFE in the southern parts of the sites # I, III, IV
Summary
The development of deposits by the open method, as a rule, is complicated by the water inflows, which are formed mainly due to the opened aquifers, as well as powerful zones of water-borne faults. Hydrogeological conditions of mining of iron ore deposits are determined by the nature of the permeability of fractured karst reservoirs, which in natural conditions contain groundwater reserves. In this case, the flooded rocks have a negative impact on all technological processes. As the quarry becomes a drain, the conditions of surface and underground runoff are violated, as a result of which a zone of filtration deformations is formed.
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