| In recent years,the shallow deposits have been exhausted,and exploration of solid mineral resources has gradually shifted to deep and covered areas,and traditional exploration techniques have been greatly restricted.Forest,marshes cover areas and frozen soil cover areas are also significant blind areas for mineral exploration,as well as indispensable exploration areas for the strategic transfer of solid mineral resources.This paper comes from the vertical scientific research project of the cooperative research on the prediction of concealed deposits in Guilin University of Science and Technology and the Heilongjiang Institute of Geological Survey and Research.In order to solve the problem of deep prospecting in the copper-polymetallic survey area of the Tayuan mining area in the Daxinganling area of Heilongjiang Province,this paper systematically analyzes the regional metallogenic background and the geological characteristics of the Tayuan mining area in the Daxinganling area on the basis of summarizing the predecessors' data.The ore body conducts a feasibility study and obtains the following main results and understanding:1 Analyze the geological data of the Tayuan mining area collected,and summarize the geophysical prospecting indicators.It is considered that the two sets of stratigraphic contact zones in the Upper Yigenhe Formation and the Upper Cretaceous Baiyingao Formation in the Carboniferous are favorable prospecting sites;The NE-trending torsion fault is an important prospecting indicator.In geophysical exploration,it is mainly characterized by low resistance,high polarization,and a relatively stable magnetic field in the magnetic anomaly zone.In terms of geochemical exploration,the background values of Cu and Zn are much higher than other elements,and the degree of differentiation is high,which is conducive to the integration of minerals.2 Through the electrochemical ore prospecting study on the known profile,the results show that the elements and the main ore-forming elements Cu and Zn are abnormally completely integrated,and the soil mercury release and soil ion conductivity anomalies can also indicate better.The ore body proves that the electrochemical integration technology is effective in finding hidden copper and polymetallic ore in the Tayuan mining area,and provides a technical basis for prospecting for such prospecting in such landscape areas.3 The characteristics of enrichment and differentiation of geoelectric extraction elements are analyzed.The coefficients of variation Cu,Pb,Zn,Ag,W,Mo,Bi and other elements are greater than 1,and the mineralization potential is larger;the histogram method and box plot The method combines the method to extract the raw data of each element of geoelectricity,and more accurately determine the background value and the lower limit of abnormality..At the same time,cluster analysis and the combination of four elements is extracted and explained.Evaluation,determine the combination of Cu and Zn as the main best ore-forming elements in the exploration area.4 This paper comprehensively analyses the geoelectric extraction unit element anomaly,soil pyrolytic mercury release anomaly,soil ionic conductivity anomaly and the distribution rule and characteristics of element combination in geological space in the exploration area.According to the ore,the rest of the elements can be used as an indirect prospecting indicator,and the soil mercury release anomaly,the soil ion conductivity anomaly and the elemental combination anomaly and the Cu and Zn elements have a good degree of anomaly,so the area can focus on finding hidden copper and zinc.Mine-based.5 Under the guidance of geological ? geophysical and geochemical prospecting indicators,two prospecting areas were circled in the Daxinganling Tayuan exploration area,including one type ? target area and one type ? target area.The comprehensive prospecting evaluation of the target area is carried out to determine the potential for mineralization of the Class ? target area. |
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