Deep Prospecting Prediction Based On No.100 Ore Vein In Hadamengou Gold Deposit,Inner Mongolia

The surface exploration of No.100 vein in Hadamengou Gold Mine has been conducted for more than ten years.As the surface reserves are almost exhausted,it is urgent to carry out blind mine prediction.Compared with the characteristics of ore-controlling structure and orebody distribution in Hadamengou,it is found that the application of the "space-material" system research method may provide an effective way for prospecting the ore deeply.The comparative study detects that the effective approach is the exertion of the comprehensive analysis of ore-controlling fault waveform simulation which combined with structural superimposition halo,and the analysis results show that there is great potential for deep ore prospecting.The ore-controlling fault waveform simulation reveals that the gold ore bodies are mainly distributed in the expansion space formed by the leftward thrust of the fault superimposed the normal fault;the expansion space shows a southwest lateral undulation with a lateral angle of about 60 °,and the ore belt distribution strictly matches the fault waveform;It shows that the expansion space has a bead-like distribution distance of about 500 meters in the southwest direction and about 500 meters in the main ore body in the southeast direction.The tectonic superposition halo analysis shows that the near-mine halo elements Ag,Cu,and Pb are abnormal in the inner,middle,and outer zones,and are not closed to the deep.The leading-edge halo elements As,Sb,and Hg are mainly out-of-band anomalies.There are two abnormal centers in the shallow and deep parts.There are strong dizzy anomalies in the shallow and middle deep parts.The leading edge halo elements As,Sb and the tail halo elements Bi,Co,W coexist with each other;the veins are located in the encrypted equidistant ore-controlling zone,which is in a good agreement with the structural superimposed halo display.The dizziness distance in the previous period is 500 meters from the dizziness in the later period.According to the waveform simulation,3 target areas are delineated.The coordinates of No.1 target area is approximately 376000-376500 with an elevation of 400 m and are located within 200 m on both sides of the 20 th line of the exploration line;the coordinates of No.2 target area are approximately 377000-377500 with an elevation of 500 m and are located within 200 m on both sides of the 91 th line of the exploration line;the coordinates of target area 3 is approximately 378200-378700,the elevation is 300 m,and are located within 200 m on both sides of the 219 th line of the exploration line.Above all,target No.2 and No.3 and structural superposition halo fit best,which is very likely to find blind ore.