摘要
胶西北金矿集中区控矿构造系统的形成和发展受控于统一的构造应力场.郯庐大断裂左旋剪切作用派生出的压应力μ1与区域伸展作用产生的张应力λ1共同控制了成矿期构造性质的演化,构造性质经历了由韧性向脆性演化的过程.控矿构造不仅控制了矿化类型而且控制了矿床(体)的侧伏.
The formation and development of the ore-controlling structure in the gold concentration area in Northwestern Jiaodong were controlled by a uniform tectonic stress field. The compressive stress μ1 produced by the sinistral shearing of Tanlu fault and the tensile stress λ1 produced by regional extension together controlled the structural evolution in the ore-genesis period; and the structure was subjected to a ductile to brittle evolution. The ore-controlling structure controlled not only the type of mineralization, but also the lateral trending of the ore bodies.
出处
《南方金属》
CAS
2011年第6期23-25,共3页
Southern Metals
关键词
构造演化
矿化类型
矿体侧伏
胶西北金矿集中区
structural evolution
mineralization type
ore body lateral trending
gold concentration area in Northwestern Jiaodong
