招平断裂带上盘金矿床氢氧同位素地质特征

• 基础地质·矿床·盆地 • 上一篇下一篇

招平断裂带上盘金矿床氢氧同位素地质特征

周燕¹，郑培玺²，王铁夫¹，张延洁¹

1.吉林大学测试科学实验中心，长春 130026;2.吉林大学地球科学学院，长春 130061

收稿日期:2006-09-01 修回日期:1900-01-01 出版日期:2007-07-26 发布日期:2007-07-26
通讯作者: 周燕

H-O Isotopes of Gold Deposits in the Hanging Wall of Zhao-Ping Fault Belt

ZHOU Yan¹，ZHENG Pei-xi²，WANG Tie-fu¹，ZHANG Yan-jie¹

1.The Center of Test and Science Experiment, Jilin University, Changchun 130026, China;2.College of Earth Sciences, Jilin University, Changchun 130061, China

Received:2006-09-01 Revised:1900-01-01 Online:2007-07-26 Published:2007-07-26
Contact: ZHOU Yan

摘要/Abstract

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：δD_H₂O值为-100.15‰～-73.13‰，平均为-86.63‰；δ¹⁸O_H₂O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。

关键词: 招平断裂, H-O同位素, 成矿热液, 幔源流体

Abstract: 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 δD_H2O 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.

Key words: Zhao-Ping fault belt, H-O isotopes, ore-bearing hydrothermal fluid, mantle derived fluid

中图分类号:

P618.51

周燕，郑培玺，王铁夫，张延洁. 招平断裂带上盘金矿床氢氧同位素地质特征[J]. J4, 2007, 37(4): 668-0671.

ZHOU Yan，ZHENG Pei-xi，WANG Tie-fu，ZHANG Yan-jie. H-O Isotopes of Gold Deposits in the Hanging Wall of Zhao-Ping Fault Belt[J]. J4, 2007, 37(4): 668-0671.

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