EFFECTIVE METHOD FOR MINING EXPLORATION

Magnetovariational profiling method (MVP) was introduced into the field practice in the 195060s of the last century subsequent to the works of Parkinson (1959), Wiese (1965) and Schmucker (1970). At that time, low frequency variant (10-1000sec frequency range) was widely used for the detection and parameter estimation of large electrical conductivity anomalies in the Earth's crust and upper mantle. The appearance of the 5 th generation of electroprospecting equipment in the 1970-80s allowed MVP method to become regular add-on to magnetotelluric soundings (MT) in the 5-component variant. At the turn of the century, active implementation into field survey practice of the 5 th generation digital multifunction EM instruments resulted in significant increase to the number of carried out AMT measurements, which were widely used for mining exploration. In turn, emphasized was the demand for the induction vector and tipper interpretation techniques. Besides the development of effective 2-D inversions, proposed were express interpretation methods which allowed to estimate the parameters (depth, conductivity, angle of inclination, etc.) of the conductive body during the course of the field survey. Consequently, as well as due to the application of precision field tripods for quick and accurate installation of the magnetic sensors, the 3-component MVP method became an effective independent ground electroprospecting technique for solving wide range of mining exploration tasks.