Eh-4 Taurus Factory Lead-zinc Deposit In Yunnan Applications

The occurrence of Jinniuchang,Yunnan province Pb-Zn deposit is thin,deep and the downward extension is unclear.In order to search for the effective exploration method of this ore deposit,we have carried out the study on effect of EH-4 method. EH-4 is a geophysical exploration technique, which study the rock under the ground through emitting and receiving electro-magnetic wave that from nature or manpower. It can explore the depth beyond one thousand kilometer. There have not used any geophysical exploration technique to explore deposit and we are the first time to use EH-4 exploring Pb-Zn deposit.In the text, we summarize the condition of EH-4, regional geological and geological environment of mining area firstly. We study the effect of EH-4 in explorative technologies in the field and dealing data techenologies and concluding the effective method according the base of EH-4 theories and regional geological condition and geological environment of mining area.Under the effect technology of EH-4, the trandward and the downward of known deposit is to enlaege,and the prospects of parallel deposit.The application of EH-4 has got good effect in jinniuchang.The full text is divided into six chapters, the chapter1 is introduction, the chapter2 is the base of theories, the chapter3 is regional geological condition, the chapter4 is geological environment of mining area,the chapter5 is the application and search of EH-4, the end of is the conclusions and suggestions. The contents of the front of four chapters are to supply the base of theory for studying in the chapter5, and the chapter5 make success through the graph of data inversion and deducing the formula, and to get the key findings is as the follow:1.To enlarge the prospect of known orebody and find the news'throuth EH-4;2..EH-4 is affected by the deviation of magnetic probe and apparent resistivity and their relatives is tangent2θand the suggest is 3°;3. In the same length error of EH-4 electric pole, measure error is twice DC'and the suggest is 1%-2%;4.50×25 meters grid is the most affective and reasonable and it is difficult to delineation the deposit if beyond the grid;5.1n dealing data,X direction scalar data and less than 0.5 smoothing modulus can be better distinguish orebody.