Abstract
Information on designing a 3D integrated model of the deflected mode (DM) of rock massif near the Strel’tsovka uranium ore field (SUOF) in the southeastern Transbaikal region is presented in the paper. This information is based on the contemporary stresses estimated by geostructural and tectonophysical techniques and by studying the seismotectonic deformation of the Earth’s surface using the data on earthquake source mechanisms and GPS geodesy focused on the recognition of active faults. A combination of the results of geostructural, geophysical, geotectonic, and petrophysical research, as well as original maps of faulting and the arrangement of seismic dislocations and seismotectonic regimes (stress tensors), allowed us to design models of the structure, properties, and rheological links of the medium and to determine the boundary conditions for numerical tectonophysical simulation using the method of terminal elements. The computed 2D and 3D models of the state of the rock massif have been integrated into 3D GIS created on the basis of the ArcGIS 10 platform with an ArcGIS 3D-Analyst module. The simulation results have been corroborated by in situ observations on a regional scale (the Klichka seismodislocation, active from the middle Pliocene to date) and on a local scale (heterogeneously strained rock massif at the Antei uranium deposit). The development of a regional geodynamic model of geological structural units makes it possible to carry out procedures to ensure the safety of mining operations under complex geomechanical conditions that can expose the operating mines and mines under construction, by the Argun Mining and Chemical Production Association (PAO PPGKhO) on a common methodical and geoinformational platform, to the hazards of explosions, as well as to use the simulation results aimed at finding new orebodies to assess the flanks and deep levels of the ore field.
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Original Russian Text © V.A. Petrov, A.B. Leksin, V.V. Pogorelov, Yu.L. Rebetsky, V.A. San’kov, S.V. Ashurkov, I.Yu. Rasskazov, 2017, published in Geologiya Rudnykh Mestorozhdenii, 2017, Vol. 59, No. 3, pp. 173–200.
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Petrov, V.A., Leksin, A.B., Pogorelov, V.V. et al. Geodynamic simulation of ore-bearing geological structural units by the example of the Strel’tsovka uranium ore field. Geol. Ore Deposits 59, 183–208 (2017). https://doi.org/10.1134/S1075701517030047
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DOI: https://doi.org/10.1134/S1075701517030047