Euler Deconvolution Of The Analytic Signals Of Gravity Gradient Tensor

ABSTRACT:Gravity gradient tensor is the second derivative of gravity potential, and reflects the rate of change of the gravitational field, compared to the vertical component of gravity field in traditional gravity measurement,which is more sensitive about the density abnormal and directly reflect the boundaries of the causitive bodies. Analytic signal is a gradient value, its amplitude reflects the position of underground anomalies. Applying analytic signals to gravity field can limit background field effectively, thus can determine the boundaries of the target body clearly.Euler deconvolution can estimate the position of the source automatically or semi-automatically.lt can reflect the boundary position of underground anomalies source quickly and effectively which need few parameters, and does not need a priori information,such as density,magnetic or another relevant. It is a geophysical inversion method which has a number of advantages.Depending on high resolution and high sensitivity of gravity gradient tensor data, analytic signal has the advantage of determining the location of anomalies bodies.Euler deconvolution of the analytic signal of gravity gradient tensor can be solved by analytic signal instead of gravity field derivatives.Structural index can be automatically identified by a set of data points in a window solving Euler equations, so there is no need to determine structural index in advance and denoise background field which traditional Euler deconvolution method has. And a variety of models prove the effectiveness of this method.41pictures,3tables,102references.