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| | Abstract | | When we construct a structure model in magnetic exploration, we can select various strategies in making digital underground model shapes. Perhaps the model most widely used in magnetic exploration is so called prism model under which target structure consists of a number of columns (prisms). On the other hand, one of the most comprehensive models is that buries a number of small magnetic rectangular block units. This kind of model is able to be applicable to more complicated pragmatic underground structure. Nevertheless, simple structure models with small number of magnetic blocks are sometimes in demand because they are easy to grasp the structure for observers. In such cases we can use sphere, ellipse, cylinder, prismatic column and polyhedron as a structure block unit. Here at first we try to analyze with small number of rectangular block but with arbitral direction free from the coordinate axes. Final purpose is inversion analysis with several numbers of rectangular blocks with arbitral rotational directions based on observed magnetic total intensity data. |
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