Passive geophysical survey method based upon the detection of the DC component of the vertical electrical potential of natural earth currents

摘要

A geophysical prospecting method of measuring potentials existing in the air in the area of the lower atmosphere between about one and ten meters above the surface of the earth in order to detect petroleum accumulations and mineral deposits below the surface of the earth. The method mounts a detector device is mounted on the front bumper of an off-the-road vehicle and moves the vehicle across the surface of a given area of earth in a more or less continuous fashion. Changes in the electron flow through the ion field at the surface of the earth to increased and decreased resistivity values in the crust of the earth are recorded.