Article
Article name Practical experience of electrical resistivity application by the tomography of induced polarization method at the Pilnensko-Dmitrievsky ore field of Eastern Transbaikalia: searching for golden ore zones
Authors Yuditskih E.. ,
Bibliographic description
Category There is an opinion...
DOI 550.837.3
DOI 10.21209/2227-­9245-­2018-­24-­6-139-145
Article type Scientific
Annotation Practical experience of electrical resistivity application by the tomography of induced polarization method (IP) for revealing tectonic disturbances and zones of probable gold mineralization, associated with fault zones and a dyke complex in the platform cover of the Pilnenskoye-Dmitrievsky ore field in the Eastern Transbaikalia is presented. Nineteen profiles have been traversed in the northeastern direction across the strike of the main geological structures at a distance of 10 m from each other. Profile number 4 was located above the dyke, exposed by the geological ditch. This made it possible to compare the data of the electro tomography on this profile with the geological data. As a result of the work, graphs, sections and 3D-models of resistivity and polarizability were obtained. The fracture zone on the geoelectric section corresponds to a subvertical region of increased conductivity (1000…2000 Ohm). Here the profile along the tangent crosses the Pilninsky latitudinal fault, and the presence of poor sulphide mineralization in the fault zone is marked by an increase in the chargeability (up to 40 ms). The gold zone was distinguished on a section by an inclined zone of lowered resistances (2000…3000 Ohm ∙ m) with a highly conducting center (<1000 Ohm ∙ m), the location of which converges with the location of the dyke of hybrid porphyries. At the section of chargeability in this region, the parameter C is raised to 24 msec on the background of 20 msec. The volumetric model made it possible to localize promising gold sites within the research area. Analysis of the results obtained, despite the difficult conditions of implementation (high content of soil moisture, the presence of permafrost, etc.), made it possible to identify faults and prisalband (gold ore) zones
Key words electrical resistivity tomography; resistivity method; induced polarization method; geoelectric section; 3D-model, gold mineralization; chargeability; dyke complex; permafrost rock; fault zone
Article information Yuditskih E. Practical experience of electrical resistivity application by the tomography of induced polarization method at the Pilnensko-Dmitrievsky ore field of Eastern Transbaikalia: searching for golden ore zones // Transbaikal State University Journal, 2018, vol. 24, no. 6, pp. 139-145
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Full articlePractical experience of electrical resistivity application by the tomography of induced polarization method at the Pilnensko-Dmitrievsky ore field of Eastern Transbaikalia: searching for golden ore zones