论文部分内容阅读
以山东新城—河西金矿区为例,通过新城、河西和侯西矿床容矿断裂的形态、断裂活动、构造因素、构造应力场和变形场的数学、力学半定量及定量分析,探讨断裂构造控矿规律以及成矿的力学机理。提出了金矿成矿受主断裂面形态、次级小断裂、节理的发育强度,断裂构造的力学特征、变形强度等控制。矿体多位于波状起伏的主断裂面凸峰的下盘、凹谷的上盘。矿化强度与次级断裂、节理的发育强度正相关。断裂构造带和次级构造裂隙带是内应力低势区和体应变、剪切应变的高值区,是矿化和蚀变的有利部位,矿化强度与应力值负相关,与变形强度正相关。
Taking the Xincheng-Hexi gold mine in Shandong Province as an example, semi-quantitative and quantitative analysis of the fractures, tectonic factors, tectonic stress field and deformation field of the Chengcheng, Hexi and Houxi deposits in the Xincheng, Ore control law and mechanics of mineralization. This paper puts forward the control of the morphology of the fracture surface, the secondary small fracture, the developmental strength of the joints, the mechanics characteristics of the fault structure and the deformation strength of gold mineralized acceptor. Ore body is located in the wavy undulating main peak convex peak of the next plate, valley on the plate. The mineralization intensity is positively correlated with the secondary fracture and the joint development strength. The fault tectonic zone and the secondary structural fractured zone are the low stress zone of internal stress and the high value zone of body strain and shear strain, which are favorable sites for mineralization and alteration. The mineralization strength is negatively correlated with the stress value and negatively correlated with the deformation strength Related.