Golishchenko G. N., Chief Geophysicist of the Central Mining Department, Geological and Mineralogical Sciences, phone: +998 (79) 227-04-46; Khaletskaya O. V., Category I Geophysicist Experimental Methodical Research Laboratory, Navoi Mining and Metallurgical Plant.

In 2009 experimental geophysical operations in area of research filtration properties and rocks permeability in bings layers area with methods of vertical electric sounding (VES) with a view to defined differs of collectors properties of electrical resistances have been realized. At first stage, technique of VES has been tested for condition of researched bing of heap leaching (HL) with determination of resistant degree, character of sounding curves, excavation length of charged electrodes, taking into account necessary depth of electric sounding. The results of VES interpretation have been presented as real mininggeophysical excavations with quantitative evaluation of parameters of specific resistivity (SR) in area of six layers of leaching “pillow” and volume distribution of physical field in 3-D size, reflected total view of field distribution along depth (qualitative interpretation). Also geoelectrical excavations of conventional scheme and excavations of right resistant field distribution, using priory data of “pillow” construction have been presented. Office processing of field data of VES has been realized using software of IP12Win and IPI RES2 complexes, which allows automatically formation of model of resistant changing, depends on depth, sounding location points united in profile and etc. Comparison of the VES results and its program simulation with data of check borehole drilling in beginning of April 2011 has been educed absence of significant links of metal content with specific resistivity distribution, depends on category of check boreholes; discrepancy of results of humidity determination in boreholes of 6M and 6G blocks to data of geophysics in lower layer No. 1, 2. But in higher layers No. 5, 6 strain correlation link between specific resistivity and humidity has been educed. Detailed analysis of specific resistivity distribution, based on VES results and data of samples from check boreholes (metal content and humidity) have been confirmed important correlation link between specific resistivity and humidity and etc. Today, the scientific-research works of “pillow” joggle by micro explosion at the area with identified zones of lower permeability have been realized with a view to intensify process of gold leaching in bing of old tailing.