METHOD OF MAPPING OF ROCKS Russian patent published in 1995 - IPC

FIELD: geophysical prospecting. SUBSTANCE: electric field is excited successively by two pairs of point supply electrodes A+I

_I, B-I_I, A+┴, B+┴ located perpendicular relative to each other. Difference of potentials of each pair of supply electrodes is measured with the help of receiving dipole MN with point groundings which center is located on straight line passing through supply electrodes of one pair. Dipole itself is oriented in parallel to second pair of supply electrodes. Difference of potentials is measured in external zone of point groundings at different distances to the left and to the right from them. Method of special points is used to determine electrical properties and structural parameters of medium. EFFECT: expanded application field and enhanced authenticity of method. 1 dwg