Analysis of Mineralization Structure and Stress Field in Linglong Gold Field of Jiaodong
The faults in the main structure of the Linglong gold deposit in the northwest of Jiaodong play an important controlling role in the formation and distribution of the Jiaodong gold deposit.By analyzing the joints developed within the NE,NNE,and NEE fault zones of the Linglong gold mine,and using observation points to select directional joints for paleostress analysis,the evolution of structural stress during the mineralization period of the Linglong gold mine is divided into three stages based on structural matching relationships.The structural fault properties of the Linglong gold mine transition from early compressive torsional to mid compressive and tensile transitional stages,and exhibit tensile torsional characteristics in the late stage.The deposit was formed during the transition period of structural stress.Based on the work of previous researchers,this study aims to explore the formation and evolution of the stress field in the ore controlling structures of the research area,using the method of principal stress analysis and inversion as the starting point.