Application of geophysical prospecting method in general survey of Dengke phosphate mine in Guizhou
The Dengke phosphate mine in Guizhou is a large deposit.In order to find out the occurrence of deep ore-con-trolling strata and structures in the study area and to assist in the breakthroughs in deep prospecting.In this paper,the au-thors analyze the characteristics of rock and ore physical properties in the Dengke phosphate mine area.The controllable source audio-frequency magnetotelluric sounding and microtremor sounding technology are used to detect the deep electrical structure characteristics of the mining area and the hidden structure in the exploration range.After processing and inverting the collected electromagnetic data and surface wave dispersion curves,the deep electrical structure characteristics and stra-tigraphic dispersion curves of the study area are obtained.Combined with regional geological data,the geophysical prospec-ting indicators of the Dengke phosphate mine are summarized.It provides a scientific basis for studying the geophysical characteristics of Dengke phosphate mine and carrying out geological exploration.