Method for inverting geologic body geometrical morphology by combining data fusion with different heights

Abstract

The invention relates to a method for inverting geologic body geometrical morphology by combining data fusion with different heights. The method is to carry out joint processing on the air and groundmeasured data, based on the analysis principle that different height data correspond to the same field source at the same time and is used for inverting the field source, and the application range ofthe field data of different heights in the euler deconvolution method is expanded. The different height field data fusion is combined with the euler deconvolution method, which can solve the scattering problem brought by the single observation surface data calculation, so that the basic contour of the abnormal source can be rapidly and effectively drawn. The method is especially suitable for large-area grid heavy magnetic data calculation and large-depth analysis and interpretation of different height data fusion combined with inversion geologic body geometrical shapes. The thought that a single observation surface data calculation is adopted in the prior art is broken through, the geometrical morphology of the geologic body can be more clearly and accurately divided, and the depth resolution capability of the geologic body is improved.

Description

technical field [0001] The invention relates to a geophysical detection method, in particular to a method for data fusion and joint inversion of geological body geometry at different heights. Background technique [0002] The widespread application of different space detection technologies is urgently in need of a calculation method and technology that can automatically invert and interpret gravity and magnetic field anomalies and gradient data at the same time, so as to improve the ability to find targets. The Euler deconvolution method is based on the homogeneous Euler equation, and uses the structural index to invert the horizontal position and buried depth of the field source. Hood (1965) and Ruddock (1963) and others respectively proposed to use the gradient data in the vertical direction to obtain the buried depth of the power source and calculate its structural index. Hood P.Gradient measurements in aeromagnetic surveying[J].Geophysics,1965,30,891~902.Ruddock,K.A.,Sl...

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Problems solved by technology

[0003] However, the results of previous studies show that the inversion results tend to diverge during the implementation process, and it is difficult for calculation operators who lack application background to determine the calculation parameters to control divergence

The main performance is that the use of fixed windows and structural indices for different geological objects in a large area affects the inversion effect, and the results are easy to diverge or even be wrong

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