Aram Moradi
Complex Gradient Method is a fast and straight-forward method of estimating origin parameters of self-potential anomaly using SP data horizontal and vertical derivatives simultaneously. Here, it is assumed that SP anomaly mass is a two- dimensional inclined sheet whose parameters are depth to upper edge, depth to bottom edge, dip angle and electrical dipole moment. The complex gradient method validity is proven by applying it to synthetic data, with and without adding noise, for cases in which some parameters are constant while others are variable. The method is also applied to estimate model parameters for field data in three zones of a copper mine in the Surda region of India, a copper sulfide mine in Suleymankoy, Turkey, and a graphite mine in Southern Bavarian in Germany. Comparing the results of the latter case with those of other methods indicate that the complex gradient method well identifies the parameters of self-potential source and mistakes were corrected in the same article.