Application of CSAMT and IP Methods in Laochang Lead-zinc Ore Mining Area of Fengxian-County

Based on experiments on some known ore bodies,we discuss the anomalous features and ore-prospecting effect of the methods of CSAMT,SIP,and TDIP,and analyze the spatial dislocation resulted from landform factor in using the TDIP method.SIP and TDIP can accurately determine location of anomalies on surface and can eliminate the negative effect of landform.CSAMT can give a clear boundary of difference resistivity for wall rock.The result shows that the Anomalo us features in this mining area is low resistivity,high chargeability,long time constant,and low frequency correlation coefficient.We can analyze position,depth,tendency for abnormal bo dies based on these four parameters and provide reliable geologic data for the next step.