Interpretation of the self-potential anomaly over a 2D inclined plate using a moving average window curves method

Abstract

A new method has been developed to estimate the depth and the half-width of an inclined plate from moving average self-potential anomalies obtained from self-potential data. In this method, moving average filters of successive window lengths could be used to determine the depth and half-width of two-dimensional inclined plate. For a fixed window length, the depth is determined iteratively using a simple formula for each half-width value. The computed depths are plotted against the half-width values representing a continuous window curve. Then, the depth and the width of the buried source is read at the common intersection of the window curves. Finally, the method is applied to a synthetic data with and without random noise, and the efficiency of the method is tested on a field example from Germany, which demonstrates the efficiency of the method. © 2005 Nanjing Institute Geophysical Prospecting.