摘要
Through 1∶50 000 stream sediment survey,multi-element anomalies were delineated in Yelanggou, which included Ag, Mo, W, Zn, Bi, As, Sb, Au, Cu etc. Of all these elements, Ag, Mo, Zn, W, As and Sb anomalies have high peaks, high values and continuity. The mixed anomalies are controlled obviously by faults and folds, characterized especially by high values in well developed fault tectonic alteration zone. Areas of lithogeochemical anomalies of indicator elements are not large; nevertheless, the intensity of principal ore-forming element Zn is high, as shown by Zn11 primary halo. The results are really important for the study of ore-forming process and prospecting work.