Self Potential or SP surveys are used with induced polarisation (I.P.) and resistivity surveys in mineral exploration and geophysics.

Self-Potential Surveying

Self-potential is a very old geophysical technique designed to measure the electrical potential differences between pairs of electrodes that contact the surface of the earth. Anomalous surface potentials, measured in millivolts against a base station, are typically detected near pyrite, chalcopyrite, pyrrhotite, sphalerite, and graphite. In self-potential surveys we conduct the data is collected with IP and resistivity surveying.