山东省海阳市郭城金矿床特征及找矿前景

The characteristics and prospecting prospects of the gold deposits in Haiyang, Shandong

郭城金矿床矿体定位于早白垩世受郯庐断裂带左行走滑体系控制下的派生NNE与NEE向两组断裂构造内,位于郭城断裂下盘。研究区的矿体主要赋存在荆山群的野头组大理岩段和陡崖组的大理岩、变粒岩中。郭城金矿受构造控矿明显,NE向控(容)矿构造要较NEE向发育,为矿田内的主要控矿构造。控矿构造发育连续且带窄,水平延长与纵向延深范围较大,含矿断裂面具波状舒缓特点,应属于压性断裂构造。

The ore body of the Guo Cheng gold deposit is located in the early Cretaceous,which is derived from the NNE and NEE derived from the left lateral strike slip system of the Tanlu fault zone,and is located in the two group of fault structures,located at the footwall of the Guo Cheng fault.Ore body mainly exists in the study area of the Jingshan group and wild head marble cliffs were marble and granulite in.The gold deposit in Guo Cheng is obviously controlled by structure,and the structure of NE to control(capacity)ore is more developed than NEE,which is the main ore controlling structure in the ore field.The ore control structure is continuous and narrow,the horizontal extension and the lengthwise extension range are large,and the ore bearing fracture mask is characterized by wave relief,which should belong to the compressive fracture structure.