Mechanical characteristics of diapiric structures at the edge of Kunyang Rift Valley and determination of their relationship with mineralization
Kunyang Rift Valley is located on the southwest edge of the Yangzi Platform and has undergone tectonic transformation and activation since the Proterozoic era,forming a nearly north-south distribution pattern of rifts.Yimen copper deposit is located in the west part of the Kunyang Rift Valley and it is charac-terized by widespread distribution of diapiric structures.Based on the tectonic background of the deposit and the ore-controlling characteristics of the diapric structure in Fengshan copper deposit and Shizishan copper deposit,this paper analyzes and studies the characteristics of the occurrence,development and complex transformation process of the diapiric structure on the basis of ore-controlling structure analysis and plane structure statistical analysis.Based on the actual structural characteristics,the occurrence,development and placement of the diapiric effect are explored,and the metallogenic condition and mineral distribution regulari-ty during the diapir process are discussed from the spatial distribution relationship between the diapiric body and the ore body and the unified mechanical system.
diapiric structuredetermination of metallogenic relationshipgenetic modelKunyang Rift Valley
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