A Simple Method for Depth Determination from Moving Average Residual Gravity Anomalies PDF

Keywords

West Africa, gravity anomalies, depth determination

Abstract

A new approach to depth determination from normalized moving average residual gravity anomalies is developed. The depth estimation has been transformed into a solution of a nonlinear equation of the form z = f(z). Formulas have been derived for a sphere, horizontal cylinder, vertical cylinder, and vertical fault. The method can be applied to residuals and Bouguer gravity data of a short profile length. The method is applied to synthetic data with an without random errors and its validity is tested on two field examples: (1) The Abu Roash Dome gravity anomaly, west of Cairo, Egypt and (2) The Louga gravity anomaly, West Senegal, in West Africa.