| At present,facing the situation of resource shortages,there is an urgent need to strengthen the deep mine prospecting,exploration and development for expanding the potential resources of mining.Therefore,carrying out a study of the interpretation of complex magnetic anomalies can be an important way to search for concealed ore bodies and to expand the known mineral deposits.It is also have a far-reaching significance for accelerating the strategy implementation of deep prospecting.As the uncertainty of changes for the shape and thickness of the concealed magnetite body , it is important to study and analyze the magnetic anomalies deeply.Using the method of processing and interpreting the magnetic survey data with many different ways is an effective way to reveal the spatial distribution and the changing trends in the depth of the magnetic body.Select an appropriate conversion and inversion method to interpret and study he magnetic anomalies by analyzing the results of our predecessors′work and finding out the local geological conditions and magnetic anomalies through the collection,collation and analysis of the former information of the geological condition , magnetic measurement and magnetite mining in Han-Xing region.First,separate the interference signal and highlight useful information from the selected complex magnetic anomalies with the method of doing the reduction-to-pole of magnetic data,filtering and surface extension conversion.Secondly,make horizontal and vertical derivative calculation for the converted magnetic anomalies,to highlight the linear structure response in a magnetic field,suppress the impact of regional anomalies and highlight the local anomalies. Finally,establish the anomaly profile, use 2.5D visualization technology for profiling inversion,and find the relationship among the lithological combination,geological structure and metallogenic belt through analyzing the subtle changes of anomaly shape,to make metallogenic prediction and evaluation.
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