Petrogenesis of Tangjiaping granite porphyry in northern Dabie: Evidence from Zircon LA-ICPMS U-Pb dating and geochemical characteristics
文献类型：期刊论文
| 作者 | Wei QingGuo1,2; Gao XinYu1,2; Zhao TaiPing1; Chen Wei1,2; Yang YueHeng3 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2010-05-01 |
| 卷号 | 26期号:5页码:1550-1562 |
| 关键词 | Tangjiaping Granite Porphyry Highly Fractionated S-type Granite Zircon U-pb Dating Hf Isotopes Lower Crust Partial Melting |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Tangjiaping granite porphyry is located in the northern part of Dabie orogen. Zircon LA-ICPMS U-Pb dating of 20 zircon grains from Tangjiaping granite porphyry gives a concordant age of 121. 6 +/- 4. 6Ma, the later stage of Early Cretaceous. The granite porphyry is petrochemicaly charlacterized by high silica (SiO2 > 72%) and alkali (Na2O + K2O > 7. 4%) with ACNK values between 0.99 and 1. 18. The rocks are enriched in light-REE and show an obviously fractionation between light- and heavy-REE elements and serious negative abnonnity of Eu (delta E-u = 0.40 similar to 0.58), Sr, Ba, Nb. P2O5 increases with increasing SiO2; Pb decreases with increasing SiO2; Y and Th decrease with increasing Rb. Combined with petrological and geochemical characteristics, Tangjiaping granite porphyry can be classified as the highly fractionated S-type granite. The intrusion has clearly negative epsilon(Hf)(t) value (-17. 6 similar to -10.4) and epsilon(Nd)(t) value (-15.5 similar to -13. 7), and the Hf and Nd model age are 1843 similar to 2281Ma and 2034 similar to 2178Ma, respectively suggesting that the Tangjiaping granite was formed by partial melting of the crust. The moderate 'Sr ratios indicate that the magma source should include low-mature crust. In combination with the characteristics of REE, we argue that Tangjiaping granite was formed by the lower crust. |
| WOS关键词 | A-TYPE GRANITES ; LACHLAN FOLD BELT ; S-TYPE GRANITES ; LU-HF ; ISOTOPIC SYSTEMATICS ; TRACE-ELEMENTS ; I-TYPE ; ORIGIN ; CHINA ; GEOCHRONOLOGY |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000278597800020 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/73122]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wei QingGuo |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei QingGuo,Gao XinYu,Zhao TaiPing,et al. Petrogenesis of Tangjiaping granite porphyry in northern Dabie: Evidence from Zircon LA-ICPMS U-Pb dating and geochemical characteristics[J]. ACTA PETROLOGICA SINICA,2010,26(5):1550-1562. |
| APA | Wei QingGuo,Gao XinYu,Zhao TaiPing,Chen Wei,&Yang YueHeng.(2010).Petrogenesis of Tangjiaping granite porphyry in northern Dabie: Evidence from Zircon LA-ICPMS U-Pb dating and geochemical characteristics.ACTA PETROLOGICA SINICA,26(5),1550-1562. |
| MLA | Wei QingGuo,et al."Petrogenesis of Tangjiaping granite porphyry in northern Dabie: Evidence from Zircon LA-ICPMS U-Pb dating and geochemical characteristics".ACTA PETROLOGICA SINICA 26.5(2010):1550-1562. |
入库方式： OAI收割
来源：地质与地球物理研究所
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