Relation between Structural Deformation and Mineralization in Lala Copper Deposit, Sichuan

Abstract

The Lala copper deposit is a well-known large copper deposit in the southwest China. The structure of the Lala copper mine area is complex. To clarify the structural stage of the mine area can better understand the distribution and evolution of the ore body. After data collection, field survey, data statistics and calculation classification, the structural movement vector in the area is dynamically inverted, and the structural deformation characteristics of the mining area are summarized to infer the relationship between the structure and the mineralization. The structure of the mining area is dominated by directional foliation, bedding ductile sliding structure, translational faults, reverse faults and normal faults. After analysis, it can be divided into six stages, which are mainly affected by NE, SN, EW and NW directions. Among them, the first four stages have important influence on mineralization, especially the ductile shear zone plays a vital role in the mineralization.

Keywords

• structural deformation
• mineralization
• lala copper deposit