Abstract: Yangla Copper Deposit is located in the binding site of Changdu—Simao Block and Zhongzan Block,which is one of the representative deposits in Yangla—Qulong Cu (Pb—Zn—Ag) metallogenic belt of Jiaren granite belt.In order to provide some reliable references for the deep and edge prospecting work of the mining area,based on the geological research results for the mining area,the regional metallogenic geological background,deposit geological characteristics,metallogenic factors,genetic mechanism and the relationship between formation lithology,structure,magmatic activity and mineralization are discussed.The research results show that:①the strata distributed in the mining area is mainly for Silurian System and Nipen System,among them,Jiangbian Formation and Linong Formation of Silurian are the enriched strata;②the deposit is mainly controlled by strata and tectonic,the whole scale,occurrence and thickness of the deposit vary greatly,the mineralization form is complex and changeable along the tending direction,which occurred as layered stratiform—like and lenticular;③the deposit is mainly controlled by the SN trend faults,NE trend faults and interlayer fracture zone,and the mineralization is enriched in the intersection part of structure;④the mineralization of deposit can be divided into hydrothermal sedimentation,magmatic hydrothermal and tectonic hydrothermal transformation,therefore,the genesis of the copper deposit is defined as hydrothermal sedimentary—hydrothermal reformed deposit.According to the above discussion results,it is further indicated that the west side of Linong ore—section,east side of Lunong ore—section and the combining site have favorable prospecting potential.

Key words: Copper deposit,Geological characteristics of deposit, Deposit genesis, Metallogenic condition, Metallogenic regularity