Abstract: Baiyun gold belt is located in the middle part of Liaodong-Jinan Paleoproterozoic rift in the northern margin of North China Platform.The gold-bearing layers are clastic sedimentary formations which are made up of clayey and semi-clayey rocks at the late stage of rift development,and they are very important gold belts in the well-known Qingchengzi lead-zinc-gold-silver mining area in Eastern Liaoning Province.Eight large-scale gold vein belts have been found in the gold belt named as 1#,2#,10#,11#,60#,70#,80# and 90#.Each vein belt is made up of several or dozens of gold orebodies.The cumulative explored reserves in the gold belt are about 80 tons of gold and 400 tons of silver.The metallogenic characteristics,characteristics of ore vein belt and orebody,trace and rare earth elements characteristics of Baiyun gold belt are studied in depth.The results show that:①the gold belts are located in the schist of Gaixian Formation,Liaohe Group of Paleoproterozoic Erathem, and the schist is not only an important source layer but also the host rock of gold deposit;②the gold belt is controlled by the approximately east-west Baiyun nappe structural belt,the interlayer faults that are formed transversely and vertically by nappe tectonics control the spatial distribution of the gold vein belt;③the gold mineralization is closely related to the alteration of silicification and potassiumation, the type of mineralization is dominated by silicon-potassium altered rocks,followed by quartz veins,the genetic type of gold deposit is deposition-metamorphism-magmatic hydrothermal reformation.Based on the above analysis results,through the comprehensive study of the previous results of prospecting and exploration,five prospecting norms such as the schist of Gaixian Formation,ductile-brittle shear zone,interlayer fault groups,neutral and medium-acid veins, silicon-potash alteration zone are summarized,and the double norm of “Gaixian Formation schist + interlayer fault group” is the key to search for the deep concealed deposits,besides that,key ares for the further prospecting in the area can be concluded that the embedded depth of 400~800 m,the depth beneath 800 m,the extensions at the east and west ends of the ore belt and the depth of the main structural plane of Baiyun nappe structure.

Key words: Baiyun gold belt, Nappe structural belt, Interlayer fault groups, Prospecting norms, Deep metallogenic space, Prospecting direction