Three-dimensional modeling of the structure of the productive stratum and calculation of reserves of ribbon clays of the Gaidukovka deposit using geoinformation technologies

   This article discusses the possibilities of using geoinformation technologies for three-dimensional modeling of the geological structure and calculating reserves of belt clay deposits. The study was carried out using the example of the site of the Haidukovka deposit in the Minsk region of the Minsk region, with an area of 5.76 km². Based on the analysis of archival drilling materials comprising 195 wells and topographic plans, a spatially linked database of geological data was formed, with a study detail of 29,538.46 m² per well. Digital models of the relief, roof, and bottom of the clay formation were built in the ArcGIS Pro environment using the 3D Analyst module. The surface difference method based on TIN models was used to estimate the volume of minerals and overburden. Quantitative estimates of the geometric volumes of clay strata and overburden have been obtained, and the features of their spatial distribution and ratios have been analyzed. The possibility of using three-dimensional GIS modeling is shown not only for estimating forecast reserves, but also for analyzing actual production and monitoring field development. The application of the surface difference method made it possible to determine the total geometric volume of clay strata within the landfill of the mining allotment, which amounted to 65.44 million m³, as well as the volume of overburden rocks – 23.0 million m³. The ratio of these indicators indicates favorable mining and geological conditions for the development of the deposit. The results of the study confirm the effectiveness of GIS platforms for solving the tasks of preliminary and operational assessment of non-metallic mineral reserves and can be used for design, scientific and educational purposes. The proposed methodology can be recommended for use in design and survey work, in planning the development of deposits of common minerals, as well as for educational and scientific purposes as an example of the integration of modern GIS technologies into the practice of geology and mining sciences.

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