Study On TDEM Fix Loop 3 Component Configuration Survey

By analyze the existed problems during the field survey,based on compare and analyze different configurations,we start from forward modeling,field data acquisition test and analyzing of acquired data,to discuss the application of 3 components TDEM fix loop configuration.During analyze the result from forward simulation,we use forward simulations based on different geological backgrounds and compared the result from different model used in forward simulation;based on this work,by considering the geological characteristics of volcanic area,we study the method for acquiring the data and the high precision inversion lithological boundary split,3 components 3 dimensional modeling,fault visualized modeling and interpretation method.Then with continuous 3 years(2014-2016)of test survey designed for different geological problems and different objective,we gathered original data and proved this method do raise working efficiency and can get results with better resolution.3 surveys do finished the objective and received reliable result.We conclude that with 3 components TDEM fix loop configuration data acquisition and 3 components 3 dimensional modeling may satisfy the needs for common geological surveys,this method may provide reasonable anomaly and interpretation of the anomaly and the model may turn to geological model quickly thus this method shall be put in use widely.Compared to apparent resistivity profile,the 3 dimensional modeling results may have a better constriction boundary and locate the anomaly more precisely.By using this method to detect the 3 dimensional anomalies,the more complex the situation is,the more time needs to model the response,so this method is more reasonable in applying into Geological Exploration stage.