In view of the limitation of the traditional inversion theory and method of the gravity and magnetic field , professional an yulin , etc , worked in china university of geoscience , has come into being the theory system of the all - direction imagery for local gravity and magnetic sources after having researched a few years . the theory system broke through the thinking method of traditional theory system , researched all - direction imagery of the 2d local gravity and magnetic sources by means of complex function theory and researched all - direction imagery of the 3d local gravity and magnetic sources by means of spherical harmonic analysis theory , developed greatly the interpretation theory on the gravity and magnetic field
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