The Applied Research Of Comprehensive Geophysical Prospecting Method In Predicting The Deep Concealed Ore

Copper is non-renewable resources, with the growing demand and the long years of exploitation, many old mine for many services for many years had now become crisis mines. So it is very important to carry out the search of replaceable resources in the periphery of the crisis mine. This is now strongly advocated by the national and also supported by the policy of geological prospecting work. Its main goal is to find and ascertain the number of reserves in the periphery of the old mine or deep where have a certain resource potential and market demand to supersede the old mines or extend the service life of the mine.Lala Copper Mine is located in the south section of Kang Dian Axis. It is the typical marine volcanic sediment copper metal deposits. Its major deposits-Luodang deposit has been mined for many years. As the finitude of resources and exploration techniques the production of many existing mine are declining and gradually turned into crisis mine. So the Liang Shan Mining Company proposed the target that:looking for "Lala" in periphery of Lala, and find "Luodang" deposit in Luodang below. This article is in support of the project of "Study on deep concealed copper and polymetallic deposit in the south section of Kang Dian Axis" And we analyzed the picture of the Sichuan-Yunnan airlines aeromagnetic anomaly reduced the magnetic anomalies to the pole and upward continuation20km.Wefound elevated to the west side of the anomaly zone along the line in longitude102on the map. It Distribution in Danba, Kangding, Mianning, Xichang, Panzhihua, Yuanmou, Pinglang, Shuangbai and Xingping. The main work of the article include below:first of all, we have collected the previous geological studies of Lala copper mine, and summary the metallogenic regularity of Lala copper deposits. Therefore, this ground-precision magnetic survey is carried out in massive aeromagnetic anomalies region. For the second, we selected one geological section throughout the Luodang mine in the eastern and southern of Luodang deposit and looking for the outcropping of rock in the main strata along the Geological profile, and we have done a lot of specimen collection and testing physical properties work. After analysis these results, we found that existed exist the physical properties of doing the geophysical work along the selected profile. For the third, we have chosen the AMT and CSAMT method repeated observations in the same profile. The dot pitch of the AMT method is relatively sparse, and it corroborates each other as a control point, and corrected the static displacement of CSAMT method which can not be overcome. For the fourth, we use the V8multifunctional electromagnetic instrument developed by Canadian Phoenix Co. to carry out the method of separated the electric channel road and track observations. For the fifth, we carry though the inversion interpretation to the data by the MTSoft2D soft witch made by CDUT. For the sixth, we effectively reduced the noise caused by the mine, and obtained more reliable MT signal, and we summarized the matallogenic regularity of Lala, summarized the comprehensive geophysical prospecting method of this area.