Study on the age of the shear zone-type gold deposit East Tianshan, Xinjiang, China
文献类型：期刊论文
| 作者 | Chen Wen; Zhang Yan; Qin KeZhang; Wang QingLi; Wang YiTian; Liu XinYu |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2007-08-01 |
| 卷号 | 23期号:8页码:2007-2016 |
| 关键词 | Xin Jiang East Tianshan shear zone-type gold deposit Ar-Ar age |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | The isotope geochronological study of the Kanggur, Hongshi and Hongshan, three typical shear zone-type gold deposit located in Qiugemingtashi-Huangshan large-scale ductile shear zone in the middle of the East Tianshan orogenic belt, shows that the time of the gold deposit mineralization is in agreement with that of the strike-slip shear deformation of the shear zone in its late period. The main shear deformation time of the Qiugemingtashi-Huangshan ductile shear zone is between 262.9 similar to 242.8Ma, while the gold mineralization time of the shear zone-type gold deposit is between 261.0 similar to 246.5Ma. This high concordance proves that the late right lateral strike-slip shear deformation is the main reason for the gold mineralization. The agreement between the gold mineralization time and the right lateral strike-slip shear deformation time shows diversity in different part of the shear zone. The fast uplift of middle-western part of shear zone happened in 261. 5 similar to 262.9Ma while the main mineralization time of the Kanggur gold deposit is between 261.0 similar to 252.5Ma, which indicates that the mineralization of the Kanggur gold deposit began just after the fast uplift of the middle-western shear zone. In the eastern shear zone, the fast uplift happened in 247.1 similar to 246.9Ma while the main mineralization time of the Hongshan gold deposit, situated in the north area of the eastern shear zone, is between 246. 9 similar to 246. 5Ma, which indicates that the mineralization of this gold deposit also began after the fast uplift of the eastern shear zone. The Ar-Ar age of the gold ore obtained in this study is not in agreement with the time of the early ductile nappe Shear deformation, which is inferred that the ductile nappe shear deformation happening in late Carboniferous-early Permian may only result in the primary concentration of metal element including gold. Because the high temperature is unfavorable to the metal element precipitation and the compression environment is unfavorable for forming space to hold ore, gold deposit is not formed during this period. Until late Variscan to Early Indo-sinian epoch, the strike-slip shear deformation resulting in fast uplift and cooling to 350 degrees C, then the brittle-ductile shear zone had enough space and time for forming gold deposit during the slowly cooling period below 350 degrees C. |
| WOS关键词 | ORE-FORMING FLUIDS ; SHRIMP CHRONOLOGY ; NW CHINA ; MOUNTAINS ; GEOCHEMISTRY ; TECTONICS ; BELT |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000249590600021 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68360]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Chen Wen |
| 作者单位 | 1.Chinese Acad Geol Sci, Inst Geol, Lab Isotope Geol, Beijing 100037, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Chinese Acad Geol Sci, Inst Mineral Resources, Beijing 100037, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen Wen,Zhang Yan,Qin KeZhang,et al. Study on the age of the shear zone-type gold deposit East Tianshan, Xinjiang, China[J]. ACTA PETROLOGICA SINICA,2007,23(8):2007-2016. |
| APA | Chen Wen,Zhang Yan,Qin KeZhang,Wang QingLi,Wang YiTian,&Liu XinYu.(2007).Study on the age of the shear zone-type gold deposit East Tianshan, Xinjiang, China.ACTA PETROLOGICA SINICA,23(8),2007-2016. |
| MLA | Chen Wen,et al."Study on the age of the shear zone-type gold deposit East Tianshan, Xinjiang, China".ACTA PETROLOGICA SINICA 23.8(2007):2007-2016. |
入库方式： OAI收割
来源：地质与地球物理研究所
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