Pb, Zn, Au and Ag are of great abundance in hornblende-plagioclase leptynite of Archeozoic Hongqiyingzi Group which seems to be a potential source bed;

• 太古界红旗营子群的角闪斜长变粒岩中锌、铅、金、银的丰度很高,为潜在矿源层;