Self-potential (SP) anomalies over ore bodies arise from electrochemical (mineralization) processes; the amplitude of the anomaly helps distinguish ore type, and profile asymmetry indicates the down-dip direction of a steeply dipping body.
The profile shows a sharp negative SP anomaly of a few hundred millivolts with pronounced asymmetry, consistent with a steeply dipping, electronically-conductive metallic sulfide body...
Full option-by-option analysis available to enrolled students.