招平断裂带蚀变岩非镜像对称特征及地质意义

招平断裂带是胶东西北部地区最重要的金成矿带之一,沿该构造-成矿带已陆续发现了以玲珑金矿田为代表的不同规模金矿床十余处,显示该区具有良好的成矿地质条件。招平断裂带构造形式多样,矿化蚀变分带复杂。断裂带以发育连续且稳定的主裂面为特征,以主裂面为中心,上下盘蚀变岩基本呈非镜像对称分布。研究招平断裂带蚀变岩非镜像对称分带特征具有重要的地质意义。

Geological Characteristics and Significance of Non-mirror Symmetry in the Altered Rocks of Zhaoyuan-Pingdu Fracture Zone

Zhaoyuan-Pingdu fracture zone is one of the most important gold mineralization belt in northwestern Jiaodong area. Along the structure-mineralization belt, more than ten deposits in different sizes have been found now, which is represented by Linglong gold deposit. It is showed that there is good metallogenic conditions in this area. There are many types of structures and complicated alteration zones in Zhaoyuan-Pingdu fracture zone. Continuous stable fracture surfaces are well developed. Regarding main fractural surface as the center, altered rocks in the upper and lower walls are non-mirror symmetric distribution. It is significant to study non-mirror symmetric characteristics of altered rocks in Zhaoyuan-Pingdu fault belt.