Geological characteristics and associated magmatic ages of the Xiekeng skarn-type Cu-Au deposit in the West Qinling terrane
文献类型：期刊论文
| 作者 | Guo XianQing1; Yan Zhen1; Wang ZongQi2; Wang Tao1; Wu FaFu2; Fu ChangLei1; Hou KeJun2; Li JiLiang3 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2011-12-01 |
| 卷号 | 27期号:12页码:3811-3822 |
| 关键词 | Mid-Triassic magmatism Skarn-type Xiekeng Cu-Au deposit Gangcha Complex West Qinling terrane |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | The Xiekeng skam-type Cu-Au deposit is located in the western part of the West Qinling terrane. The Lower Permian Daguanshan Group and Lower Triassic Longwuhe Group crop out within and around of this deposit. Tectonic and magmatic activities are very abundant regionally. Petrological results indicate that the Gangcha complex in the Xiekeng deposit mainly consists of intermediate-basic igneous rocks of gabbroic diorite and gabbro. The Cu-Au and Fe mineralization is hosted in the contact zone between Gangcha complex and Permian lenticular limestones. Massive, veinlike and disseminated textures are primary type of this deposit. Magnetite and pyrrhotine ore is mainly massive, but chalcopyrite ore is either veinlike or disseminated. Gold mineralization commonly occurs within the carbonate-quartz veins. The distinctive altered zone is marked on the outcrops, which varies from potassic alteration, prophyllitization to skarnization toward marble spatially. The skarn alteration, which occurs at the contact zone between gabbroic diorite and limestone, is closely related to mineraliztion. LA-ICP-MS zircon U-Pb dating of gabbro-diorite and amphibole-andesite yields concordant ages of 243. 8 +/- 1. 0Ma and 242. 1 +/- 1. 2Ma respectively, which indicates that the Xiekeng skarn-type deposit should be formed in the mid-Triassic. Our results indicate the Xiekeng deposit should be formed in the process of the Triassic arc-magmatism in the West Qinling terrane. |
| WOS关键词 | CENTRAL CHINA ; ZIRCON ; OROGEN ; ROCKS ; CRUST |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000299019000024 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/74766]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Guo XianQing |
| 作者单位 | 1.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China 2.Chinese Acad Geol Sci, Inst Mineral Resources, Beijing 100037, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo XianQing,Yan Zhen,Wang ZongQi,et al. Geological characteristics and associated magmatic ages of the Xiekeng skarn-type Cu-Au deposit in the West Qinling terrane[J]. ACTA PETROLOGICA SINICA,2011,27(12):3811-3822. |
| APA | Guo XianQing.,Yan Zhen.,Wang ZongQi.,Wang Tao.,Wu FaFu.,...&Li JiLiang.(2011).Geological characteristics and associated magmatic ages of the Xiekeng skarn-type Cu-Au deposit in the West Qinling terrane.ACTA PETROLOGICA SINICA,27(12),3811-3822. |
| MLA | Guo XianQing,et al."Geological characteristics and associated magmatic ages of the Xiekeng skarn-type Cu-Au deposit in the West Qinling terrane".ACTA PETROLOGICA SINICA 27.12(2011):3811-3822. |
入库方式： OAI收割
来源：地质与地球物理研究所
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