CONVERTING MAGNETIC FIELD DEPTH SOLUTIONS TO A THREE-DIMENSIONAL SEISMIC DATA FORMAT

摘要

Magnetic field depth solutions are calculated for a magnetic field survey. These depth solutions are defined spatially by x, y and z co-ordinates. A digital three dimensional zero matrix is constructed by a computer program to represent a prism of earth underlying the area of the magnetic field survey. The matrix is subdivided evenly into elements representing smaller bins or prisms. Unit values are assigned to those elements to which the depth solutions correspond spatially. The resulting matrix values therefore represent a density or frequency of occurrence per unit volume of the magnetic depth solution points. The matrix elements are then spread to surrounding elements by three-dimensional convolution methods using Gaussian wavelets in each of three directions, thereby smoothing the data. The resulting data volume, or three dimensional digital matrix is then converted to a format compatible with a computerized seismic data visualization and interpretation tool and loaded into the tool. The integrated analysis of aeromagnetic depth solution data with seismic data is thereby enabled.