Geological characteristics and genesis of Yuleken-Halasu superimposed and tectonically reworked porphyry copper-gold (molybdenum) deposit in Qinghe, Xinjiang
文献类型：期刊论文
| 作者 | Xiang Peng1,2; Zhang LianChang1; Xu XingWang1; Liu GuoRen3; Liu ZhenJiang3; Jin XinDi1; Li WenJun1 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2012-08-01 |
| 卷号 | 28期号:8页码:2369-2380 |
| 关键词 | Kalaxianger porphyry metallogenic belt Yuleken porphyry copper deposit Superimposition and tectonic reworking Junggar Basin Xinjiang |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Yuleken-Halasu porphyry copper-gold (molybdenum) deposit, located in the northwestern section of Kalaxianger porphyry copper metallogenic belt, lies on the northeastern margin of Junggar Basin. Granodiorite porphyry and granite porphyry in Early Hercynian are the main ore-bearing porphyries. The wall rocks are basically a set of volcanic-sedimentary rock series in the Middle Devonian Beitashan Formation, intruded by magmatic rocks in Late Hercynian and Indosinian. Of all the deposits in Kalaxianger metallogenic belt, Yuleken-Halasu deposit is the most intensively deformed. A series of schistositized belts occur in Yuleken-Halasu ore area due to impact of the Erqisi fault. Meanwhile, most of the ore-bearing porphyries and the wall rocks are mylonitized and schistositized inordinately. The main ore rocks are not only mineralized in the form of stockwork and dissemination at the early stage of typical porphyry deposit, but also superimposed in the form of mineralization in the schistosity, mylonitized foliation and cleavage at the late stage. Geochronological study indicates that there are several magmatic and tecton-thermal events in Devonian-Triassic and metallogenic events in Devonian-Carboniferous recorded in the metallogenic belt. Through this article and the previous studies, the metallogenic belt, intruded by mass medium-acidic porphyries, was in the island arc tectonic setting related with oceanic subduction in Middle-Late Devonian (390 similar to 360Ma), accompanied by large-scale Cu-Mo mineralization. The whole metallogenic belt went through collision stage with intensely tectonic reworking and superimposed mineralization in Early Carboniferous (360 similar to 330Ma). Furthermore, Cu-Mo mineralization was developed along the mylonite foliation. The post-collision stage in Middle-Late Carboniferous (330 similar to 300Ma) was characterized by superimposed molybdenite + chalcopyrite + K-feldspar veins mineralization. The metallogenic belt underwent post-orogenic extension stage in Early Permian (270 similar to 260Ma), causing Cu-Mo filled and re-enriched in structural fracture cleavage, which resulted in superimposed mineralization developed along the fracture cleavage. In Triassic, the whole metallogenic belt was in intracontinental orogenic stage, accompanied by vein-type superimposed mineralization which was associated with low-angle overthrust faults. Therefore, Yuleken is a typical porphyry deposit which is characterized by superimposition and tectonic reworking. |
| WOS关键词 | OYU-TOLGOI ; MONGOLIA ; MINERALIZATION ; BELT ; AGES |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000308275200006 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/84770]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Xiang Peng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 3.Xinjiang Bur Geol & Mineral Resources, Geol Team 4, Altay 836500, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiang Peng,Zhang LianChang,Xu XingWang,et al. Geological characteristics and genesis of Yuleken-Halasu superimposed and tectonically reworked porphyry copper-gold (molybdenum) deposit in Qinghe, Xinjiang[J]. ACTA PETROLOGICA SINICA,2012,28(8):2369-2380. |
| APA | Xiang Peng.,Zhang LianChang.,Xu XingWang.,Liu GuoRen.,Liu ZhenJiang.,...&Li WenJun.(2012).Geological characteristics and genesis of Yuleken-Halasu superimposed and tectonically reworked porphyry copper-gold (molybdenum) deposit in Qinghe, Xinjiang.ACTA PETROLOGICA SINICA,28(8),2369-2380. |
| MLA | Xiang Peng,et al."Geological characteristics and genesis of Yuleken-Halasu superimposed and tectonically reworked porphyry copper-gold (molybdenum) deposit in Qinghe, Xinjiang".ACTA PETROLOGICA SINICA 28.8(2012):2369-2380. |
入库方式： OAI收割
来源：地质与地球物理研究所
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