Potential field power spectrum inversion for scaling geology

Abstract

A method is proposed for inverting the power spectrum of gravity and magnetic data. The method is demonstrated on aeromagnetic and bore-well data from the German Continental Deep Drilling Project (KTB). Despite the simplicity of the model, it offers a new understanding of the factors influencing the shape of the potential field power spectrum. In particular, the low wavenumber part of the power spectrum can be dominated by the scaling properties of the source distribution and not by the depth to some kind of basement. -from Authors