山东莱西山后-北泊金矿区岩石变形特征及其与金矿化关系

山后—北泊矿区位于招平断裂带中南部,该区岩石受多期次的构造应力作用,变形特征明显、显微构造发育,断裂带中韧性、脆性显微构造比较发育,通过与地壳不同构造层次上显微构造特征进行对比,可以确定该区所处构造层次为中上部,岩石变形经历了韧性—韧脆性—脆性过程,与金矿化形成关系密切。

Rock Deformation Characteristics and the Relationship with Gold Mineralization of Shanhou-Beipo Gold Mining Area in Laixi,Shandong Province

Shanhou-Beipo mining area is located in the middle and south Zhaoyuan-Pingdu Fault Zone.Because of the multi-stages tectonic stress action, the deformation characteristics of the rock in the area is obvious and micro- structure well develops.The ductile and brittle micro-structure are comparatively developed in the fracture zone. With comparing the micro-structural characteristics with the other in different tectonic levels of earth＇s crust,we can make sure that the tectonic level of this mining area is in the upper part of the rock, the rock deformation have undergone a process of ductile deformation-ductile-brittle deformation-brittle deformation, it is close to the forma- tion of gold mineralization.