Geochronology and geochemistry of the Taipingchuan copper-molybdenum deposit in Inner Mongolia, and its geological significances
文献类型：期刊论文
| 作者 | Chen ZhiGuang1,2; Zhang LianChang1; Lu BaiZhi3; Li ZhanLong3; Wu HuaYing1,2; Xiang Peng1,2; Huang ShiWu4 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2010-05-01 |
| 卷号 | 26期号:5页码:1437-1449 |
| 关键词 | Derbugan metallogenic belt Porphyry Co-Mo deposit Zircon U-Pb age Geochemistry Adakite Continental arc environment Mongol-Okhotsk Ocean |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Recently discovered Taipingchuan porphyry Cu-Mo deposit is located in the north of Derbugan metallogenic belt, Ergun city of Inner Mongolia. Concentric rings of hydrothermal alteration and Cu-Mo mineralization occurred surrounding the granodiorite porphyry. Two hydrothermal alteration zones front the host porphyry to wall rocks have been recognized in Taipingchuan mine: A silicified-sericite zone and an argillic alteration zone. The Cu-Mo mineralization is clearly controlled by the silicified-sericite alteration. By using the zircon U-Pb dating methods a precise age data of the host porphyry is obtained. The dating data show that the age of host porphyry is 202 +/- 5. 7Ma. The inherited zircon (784Ma) has also been found in the host porphyry, which indicates that a Proterozoic block was probably located in the study area. Geochemically, the host porphyry of Wunugetushan possesses some geochemical characteristics of adakite (i.e., high SiO(2), Al(2)O(3), Na(2)O and Sr contents, as well as La/Yb ratios, low MgO, Y and HREE contents). Some geochemical characteristics of the host porphyry, including relatively high SiO(2), Yb contents and Th/Nb, Ce/Nb ratios and relatively low Al(2)O(3), TiO(2), MgO, Sr, Th contents and Th/Ce ratio indicate that the porphyry derived from partial melting of the subducted slab. The Sr-Nd isotopic composition of the porphyry displays an initial ((87)Sr/(86)Sr), ratio of 0. 70943 to 0. 71019, a negative epsilon(Nd)(t) values of -3. 4 to -3. 9. The Sr-Nd isotopic data indicates that Proterozoic block had some contribution to the magma sources of the host porphyry. Combining the regional geology, we infer that the subduction of Mongol-Okhotsk ocean slab under the Ergun block led to the host porphyry forming, and Taipingchuan Cu-Mo deposit was related to a continental arc environment. |
| WOS关键词 | GREAT XINGAN RANGE ; OKHOTSK OCEAN ; CENTRAL-ASIA ; SUBDUCTED LITHOSPHERE ; NORTHEASTERN CHINA ; EASTERN CHINA ; MANTLE WEDGE ; SOUTH CHINA ; ARC MAGMAS ; NE CHINA |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000278597800010 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/72552]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Chen ZhiGuang |
| 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 100039, Peoples R China 3.Beijing Inst Geol Mineral Resources, Beijing 100012, Peoples R China 4.Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen ZhiGuang,Zhang LianChang,Lu BaiZhi,et al. Geochronology and geochemistry of the Taipingchuan copper-molybdenum deposit in Inner Mongolia, and its geological significances[J]. ACTA PETROLOGICA SINICA,2010,26(5):1437-1449. |
| APA | Chen ZhiGuang.,Zhang LianChang.,Lu BaiZhi.,Li ZhanLong.,Wu HuaYing.,...&Huang ShiWu.(2010).Geochronology and geochemistry of the Taipingchuan copper-molybdenum deposit in Inner Mongolia, and its geological significances.ACTA PETROLOGICA SINICA,26(5),1437-1449. |
| MLA | Chen ZhiGuang,et al."Geochronology and geochemistry of the Taipingchuan copper-molybdenum deposit in Inner Mongolia, and its geological significances".ACTA PETROLOGICA SINICA 26.5(2010):1437-1449. |
入库方式： OAI收割
来源：地质与地球物理研究所
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