Genesis of the Chehugou Mo-bearing granitic complex on the northern margin of the North China Craton: geochemistry, zircon U-Pb age and Sr-Nd-Pb isotopes
文献类型：期刊论文
| 作者 | Zeng, Qing-Dong; Yang, Jin-Hui; Liu, Jian-Ming; Chu, Shao-Xiong; Duan, Xiao-Xia; Zhang, Zuo-Lun; Zhang, Wei-Qing; Zhang, Song |
| 刊名 | GEOLOGICAL MAGAZINE
 |
| 出版日期 | 2012-09-01 |
| 卷号 | 149期号:5页码:753-767 |
| 关键词 | Chehugou granitic complex partial melting U-Pb zircon age northern margin of North China Craton |
| ISSN号 | 0016-7568 |
| DOI | 10.1017/S0016756811000987 |
| 文献子类 | Article |
| 英文摘要 | The Chehugou granite-hosted molybdenum deposit is typical of the Xilamulun metallogenic belt, which is an important Mo-Ag-Pb-Zn producer in China. A combination of major and trace element, Sr and Nd isotope, and zircon U-Pb isotopic data are reported for the Chehugou batholith to constrain its petrogenesis and Mo mineralization. The zircon SIMS U-Pb dating yields mean ages of 384.7 +/- 4.0 Ma and 373.1 +/- 5.9 Ma for monzogranite and syenogranite and 265.6 +/- 3.5 Ma and 245.1 +/- 4.4 Ma for syenogranite porphyry and granite porphyry, respectively. The Devonian granites are calc-alkaline with K2O/Na2O ratios of 0.44-0.52, the Permian granites are alkali-calcic with K2O/Na2O ratios of 1.13-1.25, and the Triassic granites are calc-alkaline and alkali-calcic rocks with K2O/Na2O ratios of 0.78-1.63. They are all enriched in large-ion lithophile elements (LILEs) and depleted in high-field-strength elements (HFSEs) with negative Nb and Ta anomalies in primitive mantle-normalized trace element diagrams. They have relatively high Sr (189-1256 ppm) and low Y (3.87-5.43 ppm) concentrations. The Devonian granites have relatively high initial Sr isotope ratios of 0.7100-0.7126, negative epsilon(Nd)(t) values of -12.3 to -12.4 and Pb-206/Pb-204 ratios of 16.46-17.50. In contrast, the Permian and Triassic granitoids have relatively low initial Sr-87/Sr-86 ratios (0.7048-0.7074), negative epsilon(Nd)(t) values of -10.1 to -13.1 and Pb-206/Pb-204 ratios of 17.23-17.51. These geochemical features suggest that the Devonian, Permian and Triassic Chehugou granitoids were derived from ancient, garnet-bearing crustal rocks related to subduction of the Palaeo-Asian Ocean and subsequent continent-continent collision between the North China and Siberian plates. |
| WOS关键词 | PORPHYRY MOLYBDENUM DEPOSIT ; ASIAN OROGENIC BELT ; INNER-MONGOLIA ; NE CHINA ; TECTONIC EVOLUTION ; CONTINENTAL-CRUST ; FLUID INCLUSION ; COPPER DEPOSIT ; GEOCHRONOLOGY ; MAGMAS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000307170400001 |
| 出版者 | CAMBRIDGE UNIV PRESS |
| 资助机构 | National Natural Science Foundation of China(40972065) ; National Natural Science Foundation of China(40972065) ; Special Study Programme of the Continuous Resources of Crisis Mine of China(20089931) ; Special Study Programme of the Continuous Resources of Crisis Mine of China(20089931) ; National Natural Science Foundation of China(40972065) ; National Natural Science Foundation of China(40972065) ; Special Study Programme of the Continuous Resources of Crisis Mine of China(20089931) ; Special Study Programme of the Continuous Resources of Crisis Mine of China(20089931) ; National Natural Science Foundation of China(40972065) ; National Natural Science Foundation of China(40972065) ; Special Study Programme of the Continuous Resources of Crisis Mine of China(20089931) ; Special Study Programme of the Continuous Resources of Crisis Mine of China(20089931) ; National Natural Science Foundation of China(40972065) ; National Natural Science Foundation of China(40972065) ; Special Study Programme of the Continuous Resources of Crisis Mine of China(20089931) ; Special Study Programme of the Continuous Resources of Crisis Mine of China(20089931) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/84240]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zeng, Qing-Dong |
| 作者单位 | Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Qing-Dong,Yang, Jin-Hui,Liu, Jian-Ming,et al. Genesis of the Chehugou Mo-bearing granitic complex on the northern margin of the North China Craton: geochemistry, zircon U-Pb age and Sr-Nd-Pb isotopes[J]. GEOLOGICAL MAGAZINE,2012,149(5):753-767. |
| APA | Zeng, Qing-Dong.,Yang, Jin-Hui.,Liu, Jian-Ming.,Chu, Shao-Xiong.,Duan, Xiao-Xia.,...&Zhang, Song.(2012).Genesis of the Chehugou Mo-bearing granitic complex on the northern margin of the North China Craton: geochemistry, zircon U-Pb age and Sr-Nd-Pb isotopes.GEOLOGICAL MAGAZINE,149(5),753-767. |
| MLA | Zeng, Qing-Dong,et al."Genesis of the Chehugou Mo-bearing granitic complex on the northern margin of the North China Craton: geochemistry, zircon U-Pb age and Sr-Nd-Pb isotopes".GEOLOGICAL MAGAZINE 149.5(2012):753-767. |
入库方式： OAI收割
来源：地质与地球物理研究所
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