Design And Implementation Of 2D CSAMT Inversion Program

In recent years, many scholars have realized that the biggest reason for restricting the exploration of mineral resources in China is:the average depth of exploration is only 400 meters, and the basic survey of mineral resources to achieve full coverage. Want to submit more mineral reserves, must break deep.Geophysical exploration method has become an important part of the geological prospecting, and it is indispensable in the deep prospecting. Since the CSAMT method is widely used, there are many experts and scholars have carried out the research of one dimensional inversion, and have achieved good results. With the continuous improvement of the level of scientific computing, there are a lot of experts began to two-dimensional, three-dimensional and three-dimensional source effect of two-dimensional inversion of data processing. Based on the design and development of 2D inversion program, a set of CSAMT 2D data inversion software is obtained.The software is easy to operate, high degree of automation, set aside the three-dimensional data processing and other functions of the module interface. After we build a new project, we can directly import the field collection data, and use the data filtering function to select the data; The selected data for static correction, near field correction, improve the utilization of the field data in inversion rate, make the results more close to the actual situation, then the terrain correction, then data inversion, joined the regularization factor in inversion, constrained inversion, reduced because of multiple solutions for numerical calculation bring. The inversion results are derived from the operation result file, and the data processing result can be provided directly to the user through the software drawing function. A large number of theoretical models are used to test the reliability of the data processing. And the application to the Hadamengou Gold Deposit in deep ore prospecting potential evaluation project, to provide data support for deep ore prospecting potential evaluation.Two dimensional inversion software uses the Fortran to prepare the core algorithm, using the Matlab for drawing, data filtering, inversion of quality evaluation, operation interface design and other functional modules. Multi parameter setting interface is provided to improve the reliability of the inversion data. And the application prospect evaluation of Hadamengou Gold Field Project in CSAMT work, the results agree well with the geological understanding, and the theoretical model test to verify the reliability of inversion software. Combined with a large number of geological work, a clear response to the size and shape of the rock mass, for the next step to carry out the work to lay a solid foundation.