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。
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 δ^18O value of the quartz vein ranges from 4.78‰ to 10.12%0,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 area. mainly mantle derived, similar to the ore fluids in other deposits in the area.
出处
《吉林大学学报（地球科学版）》
EI
CAS
CSCD
北大核心
2007年第4期668-671,共4页
Journal of Jilin University：Earth Science Edition
基金
国家自然科学基金项目(40272051)
关键词
招平断裂
H-O同位素
成矿热液
幔源流体
Zhao - Ping fault belt
H - 0 isotopes
ore-bearing hydrothermal fluid
mantle derived fluid
