【摘要】 招平断裂是胶东招掖金矿带的主要控矿断裂,其上盘金矿床受NE向断裂构造控制,赋矿围岩为胶东群变质岩,金矿化以含金硫化物石英脉为主。研究表明,该区域金矿床H-O同位素组成为:δDH2O值为-100.15‰～-73.13‰,平均为-86.63‰;δ18OH2O值为4.78‰～10.12‰,平均为6.22‰,与下盘金矿床H-O同位素组成相同。显示出该地区成矿热液均以幔源为主,具有与招掖金矿带其它金矿类似的成矿热液系统。更多还原

【Abstract】 Zhao-Ping fault belt is the most important ore-controlling structure in Zhao-Ye gold belt in Jiaodong.The gold deposits that are located in the hanging wall of the Zhao-Ping fault belt are distributed mainly in the metamorphic rocks of Jiaodong Group.The ores are mainly of the auriferous quartz vein type hosted in NE trending fractures and faults.Wall-rock alterations are most potassic alteration,silicification,quartz-sericitization,pyritization and carbonatization.The δ18O value of the quartz vein ranges from 4.78‰ to 10.12‰,and the average value is 6.22‰.The δDH2O values of inclusion fluid vary from-100.15‰ to-73.13‰,and the average value is-86.63‰.The result shows that the ore hydrothermal fluid is mainly mantle derived,similar to the ore fluids in other deposits in the area.更多还原