Dimensional Magnetic Anomaly Inversion And Application Of The Total Gradient Mode

Search for concealed mineral deposits have been become an important task of forecasting; application of mineral magnetic important means of prediction, especially in the inferred buried geological structure and mineral has a irreplaceable role. Access to concealed geological structures and mineral magnetic anomalies on after the job is important and critical interpretation of magnetic anomalies infer spatial distribution of magnetic inversion characteristics, therefore, the body of the second inversion of magnetic anomalies in the total gradient mode was studied And a spreadsheet.Firstly, the total gradient mode on the current application status at home and abroad is described, and then focuses on the overall degree of mode function constructor. In previous studies, based on the total gradient model inversion method a more detailed analysis. Several rules derived gradient of second body mode function, the total gradient mode functions obtained curve shape has nothing to do with the magnetization and its direction.Calculated by several rules for self-programming magneticΔT _G~2 curve, and then compared with theΔT curve, summed up theΔT _G~2 curve of feature points and the spatial distribution of magnetic and other aspects more closely correspond to the superiority.In this paper, the total gradient mode theory based on the dikes, the contact zone of the inversion formula is derived; known by the inversion formula derived in this equation, several geological parameters for the simple linear relationship, and the function of each geological Parameters into the nonlinear relationship, by contrast, improved retrieval speed.In this paper, the total gradient model inversion method can be summarized as: (1) Calculate theΔT _G~2 function, (2) eliminate the interference peak, (3) select the appropriate window, (4) to determine the depth and location of the magnetic body. The theoretical model and actual data retrieval have proved that the method is feasible. Lateral resolution due toΔT _G~2 curve higher than the curveΔT , andΔT _G~2 curve separation was better, the peak in good agreement with the model corner; this superposition model to solve the inversion lateral provided favorable conditions. So this method is applicable not only to some isolated second body inversion, for a certain distance of the overlay plate inversion is effective.