A SIMPLE METHOD FOR DEPTH DETERMINATION FROM MOVING AVERAGE RESIDUAL GRAVITY-ANOMALIES

A new approach to depth determination from normalized moving average r esidual 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, vert ical cylinder, and vertical fault. The method can be applied to residu als and Bouguer gravity data of a shore profile length. The method is applied to synthetic data with and without random errors and its valid ity is tested on two field examples: (1) The Abu Roash Dome gravity an omaly, west of Cairo, Egypt and (2) The Louga gravity anomaly, West Se negal, in West Africa.