Pu'er Dapingzhang Mine Geophysical Characteristics And Peripheral Prospecting Forecast

Geophysical methods have become a current mine in the development of a important link, geophysical characteristics of the study has very important practical significance. This paper based on Dapingzhang mine area, make systematically researches and summarizes the geology-geophysics of Dapingzhang, and give an accurate ore body's geophysical characteristics and resistivity space distribution,seeking for the depths of concealed ore body. On the basis of full recognition that response of V₁&V₂¹ geophysical field, this paper analyses and borrow ideas from predecessors, use information of the depth sounding of induced polarization method and Stratagem EH4 to make use of the the depth sounding of induced polarization method and Stratagem EH4 according to characteristics of SEDEX and volcanic hydrothermal ore deposit. Through the field geophysical-geochemical exploration of data collecting and settling, inversion and interpretation of indoor, we combine with geologic data, select beneficial of geophysical-geochemical anomaly to dwindle prospecting target and summarize the rules on prospecting at adjacent area and modes of vertical zoning,finally formed a set of applicable adjacent area of Dapingzhang or SEDEX and volcanic hydrothermal type mine prospecting prediction of the geophysical synthesis method.For the ore field of Dapingzhang, on the basis of fully grasp at geological background,I develop strength of the Stratagem EH4 method for looking concealed orebody, bond the data of geologic data and type of the ore body on spot. Focused on the advantages and disadvantages of various data types discover that the low resistances of deep are connected with pipe of SEDEX.As the exploit strength increasing, belowing900 meters there are really existing vertical V2 ore body. In the meantime, there are flat bedded V1 ore body around V2 ore body.For the adjacent area of Dapingzhang mine area,we do the the depth sounding of induced polarization method and geochemical secondary halo exploration on the basis of research the data of IP which are beneficial anomaly postion,bonding the Dapingzhang of V1&V2 ore body geophysical characteristics,and go on to use the Stratagem EH4 in beneficial anomaly postion of IP. Geochemical secondary halos results indicate that this area are element zoning profile in the different direction.The results of the depth sounding of induced polarization method and Stratagem EH4 show that there is V₁ ore body which have 10 degrees and NE of inclination.Furthermore there is V₂ ore body same as Dapingzhang in the east of this area.Final results show that it really exist the body of SEDEX and volcanic hydrothermal type mine same as Dapingzhang.