The Application Of Several De-noising Method In The Deep Copper Exploration At L-L Region

As a essential strategic resource , copper resources is a very importance in the national economic construction , after decades of exploration and development , copper resources is diminishing gradually at shallow and geological conditions well region. Therefore, the direction of exploration should be turn to the deep and geological conditions poor region from now on.Because the equipment is lighter, less affected by terrain, detecting the larger depth, the Audio Magnetotelluric method (AMT) can reflect its superiority at prospecting work in the plateau and the mountains. Therefore, the significance is obvious to study and apply the AMT .Yet, it's a topic worthy of study to suppress noise and to extract the real and reliable informations which come from the underground geological body, to reflect the underground geological structure or the anomaly generated by the copper, for research of the AMT.Based on the results of researched at home and abroad, de-noising techniques are compared in this paper. To select the better de-noise method, the related technology and knowledge are used, such as the AMT exploration, suppress noise and numerical calculation etc. After processing and inferring, the conclusions are obtained which are Similar to the other geophysical and geochemical methods. The conclusions are that the low mineralized layer is similar to the oval-shaped basin with length about 8.5 km and width about 3.5 km. It lies in the south of L-L region, the direction of long axis is the north-south, the depth is shallow around the basin and the depth is deep at the ??om(the deep reach about 1.4km).It is greatly possible containing copper in the low resistivity layer.