FIELD: geophysics. SUBSTANCE: method involves the steps of: placing pairs of power supply electrodes AB and receiving electrodes MN on a profile being studied, fixing electrode N in the middle of a power supply line, moving second receiving electrode M along the profile being studied between the power supply electrodes and finally determining a structure of the investigated portion from an increment in potential difference between pairs of points equidistant from electrode N and points equidistant from each other. EFFECT: enhanced accuracy. 1 tbl, 6 dwg
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