Abstract: The method of geophysical prospecting of polymineral ore bodies including registering pulsed electromagnetic radiation generated by the ore bodies under the action of elastic waves excited in the rock block. The radiation is registered as pulse bursts, each burst corresponding to one ore body. The shape of a pulse corresponding to the ore body under investigation is compared with the shapes of pulses corresponding to ore bodies of the known mineral compositions, and one similar pulse is selected from these pulses. Then a pulse from the burst corresponding to the ore body under investigation is subjected to the Fourier transformation to obtain the pulse height-frequency spectrum of this pulse, which is compared with the pulse height-frequency spectrum of the selected pulse, and when at least two frequencies of the maximums of the amplitudes of these respective spectra coincide, there is established correspondence between the mineral compositions of the known ore body and of the ore body under investigation.

Abstract: A device for recording seismoelectric signals comprises at least three channels for reception of seismoelectric signals in different frequency bands, each channel having a magnetic antenna (1,2,3) with series-connected amplifier (4,5,6) and a uniform frequency characteristic former (7,8,9), and also two video recorders (10,11), the first video recorder being connected to an output of the receiving channel having the lowest frequency, while the second video recorder (11) is connected, via an adder (12), to the outputs of all other channels.

Abstract: A method for geophysical prospecting of complex orebodies, wherein elastic waves are excited at least two times in the rock mass containing orebodies and the radio-frequency electromagnetic pulses produced by said orebodies are recorded during each excitation to pinpoint the arrival time of the first and last pulses in each pulse train (1,2,3,4,5,6), then the difference is found between the maximum arrival time of the last pulse and the minimum arrival time of the first pulse in the pulse trains (1,3,5 and 2,4,6) representing one orebody, said differences being the basis for determination of the thickness of each orebody.