Application of CSAMT in uranium reservoir identification in Bayingobi Basin
Forward modeling is a good way to understand the characteristics of magnetotelluric response un-der various geoelectric conditions in electromagnetic numerical simulation.The conclusion of forward model-ing has a positive guiding role for data processing and inversion interpretation.In this paper,through the controlled source audio frequency magnetotelluric survey(CSAMT)in the Bayingobi Basin,combined with the known drilling data,the initial geoelectric model is established.The forward model is calculated and the forward data is obtained.Through the inversion calculation of the forward data,the reasonable inversion model and inversion parameters are determined,and the accuracy of the data inversion is improved.Finally,on the basis of the inversion calculation,data interpretation and comprehensive analysis result of the meas-ured data,it is inferred for the spatial distribution characteristics of Bayingobi Formation of uranium reser-voir in the study area.The interpretation result has been validated by the drilling data.There has achieved a good result in the exploration of sandstone type uranium deposit.