Characteristics and formation mechanism of the veins in Mengxi porphyry Cu-Mo deposit, eastern Junggar, Xinjiang, China
文献类型：期刊论文
| 作者 | Zhang Yong1,2; Liang GuangLin3; Wu QianYi1,2; Wu Qi1,2; Zhang ZhengFeng3; Wu HuiPing3; Qu Xun3; Xu XingWang1 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2010-10-01 |
| 卷号 | 26期号:10页码:2997-3006 |
| 关键词 | Vein Tectonic Fracture-filled Vein Porphyry Copper Deposit Volume Fraction Formation Mechanism Eastern Junggar |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | The Mengxi porphyry Cu-Mo deposit located north of the Qiongheba granite in the Yiwu County, eastern Junggar, was characterized by the abundance of various ore-bearing veins and veinlets, such as quartz vein, quartz-sulfide vein and sulfide vein. On the basis of formation mechanics, veins can be classified into two types; Hydrofracture-filled vein and tectonic fracture-filled vein. According to dislocation along tectonic fractures, sliding fracture and thrusting fracture were recognized. The exposed veins were mainly quartz veins with big dip angles, and their distribution were controlled by faults. Statistic result of volume fraction of veins in three drill holes of the line 14 show that the ore-bearing fluid were concentrated along a low north-dipping zone in a depth between 100m and 400m, which was corresponded to the location of ore-bodies. In this fluid concentrated zone, veins and their corresponding fractures were conjugate, thrusting fracture with small dip angle plus sliding fracture with big dip angle. These conjugate fractures were interpreted as second-order fractures of a thrusting shear zone. This indicated that the ore-bearing fluids were filled along these second-order fractures. Veins in shallow (<100m in depth) and deep area (>400m in depth) had big dip angles and were characterized by low Cu-content. It was suggested that ore-forming fluids in the Mengxi porphyry Cu-Mo deposit possibly migrated upwards through hydrofracture in deep, and flowed laterally and upwards along the second-order fractures within the shear zone where sulfide precipitated to form orebody. Evidence that some veins containing minerals formed at relative higher temperature were cut by those formed at relative lower temperature suggested that it was possibly in uplifting setting when these veins were formed. |
| WOS关键词 | COPPER-DEPOSIT ; MINERALIZATION |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000284450800011 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/72987]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang Yong |
| 作者单位 | 1.CAS, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Xinjiang Bur Geol & Mineral Resources, Urumqi 830000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Yong,Liang GuangLin,Wu QianYi,et al. Characteristics and formation mechanism of the veins in Mengxi porphyry Cu-Mo deposit, eastern Junggar, Xinjiang, China[J]. ACTA PETROLOGICA SINICA,2010,26(10):2997-3006. |
| APA | Zhang Yong.,Liang GuangLin.,Wu QianYi.,Wu Qi.,Zhang ZhengFeng.,...&Xu XingWang.(2010).Characteristics and formation mechanism of the veins in Mengxi porphyry Cu-Mo deposit, eastern Junggar, Xinjiang, China.ACTA PETROLOGICA SINICA,26(10),2997-3006. |
| MLA | Zhang Yong,et al."Characteristics and formation mechanism of the veins in Mengxi porphyry Cu-Mo deposit, eastern Junggar, Xinjiang, China".ACTA PETROLOGICA SINICA 26.10(2010):2997-3006. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。