Zircon U-Pb age and Hf isotope evidence for 3.8 Ga crustal remnant and episodic reworking of Archean crust in South China
文献类型：期刊论文
| 作者 | Zhang, Shao-Bing; Zheng, Yong-Fei; Wu, Yuan-Bao; Zhao, Zi-Fu; Gao, Shan; Wu, Fu-Yuan |
| 刊名 | EARTH AND PLANETARY SCIENCE LETTERS
 |
| 出版日期 | 2006-11-30 |
| 卷号 | 252期号:1-2页码:56-71 |
| 关键词 | crustal remnant zircon U-Pb age Hf isotope early Archean continental growth China |
| ISSN号 | 0012-821X |
| DOI | 10.1016/j.epsl.2006.09.027 |
| 文献子类 | Article |
| 英文摘要 | Four populations of zircons are recognized by U-Pb analyses of the Neoproterozoic Liantuo Formation in the northern part of the Yangtze Block, South China. They are grains of detrital zircon older than 3.0 Ga, ca. 2.95 Ga, ca. 1.95 Ga and 820-750 Ma, respectively. The oldest zircon has a U-Pb age of 3802 +/- 8 Ma with a epsilon(Hf)(t) value of -0.8 and model Hf ages of 3.96 Ga (T-DMI) and 4.00 Ga (T-DM2). This demonstrates the existence of 3.8 Ga old crustal remnants in South China, with possible crustal growth as early as 4.0 Ga. A series of 3.3 Ga zircons have positive epsilon(Hf)(t) values as high as 4.2, providing compelling evidence for growth of juvenile crust from a depleted mantle reservoir at Paleoarchean. All the zircons have Archean Hf model ages, with prominent peaks at 3.2 to 3.6 Ga, indicating an important period of crustal growth in this period. The other three zircon populations at similar to 2.95 Ga, similar to 1.95 Ga and 820-750 Ma have negative epsilon(Hf)(t) values and consistent Archean Hf model ages, suggesting multi-stage episodic reworking of Archean crustal materials. The youngest zircons have U-Pb ages of similar to 750 Ma, very close to the deposition time of the Liantuo Formation. This indicates rapid recycling of supracrustal materials in a rift basin, possibly in association with breakup of the supercontinent Rodinia at that time. (c) 2006 Elsevier B.V. All rights reserved. |
| WOS关键词 | ULTRAHIGH-PRESSURE ECLOGITE ; SINO-KOREAN CRATON ; ND ISOCHRON AGE ; DETRITAL ZIRCONS ; CONTINENTAL-CRUST ; YANGTZE CRATON ; LU-HF ; METAMORPHIC ROCKS ; MASS-SPECTROMETRY ; DEPLETED MANTLE |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000242860200005 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/66416]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zheng, Yong-Fei |
| 作者单位 | 1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS, Key Lab Crust Mantle Mat & Environm, Hefei 230026, Peoples R China 2.Chinese Acad Geol Sci, Beijing SHRIMP Ctr, Beijing 100037, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, MOE, Key Lab Lithosphere Evolut, Beijing 100029, Peoples R China 4.NW Univ Xian, Dept Geol, MOE, Key Lab Continental Dynam, Xian 710069, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Shao-Bing,Zheng, Yong-Fei,Wu, Yuan-Bao,et al. Zircon U-Pb age and Hf isotope evidence for 3.8 Ga crustal remnant and episodic reworking of Archean crust in South China[J]. EARTH AND PLANETARY SCIENCE LETTERS,2006,252(1-2):56-71. |
| APA | Zhang, Shao-Bing,Zheng, Yong-Fei,Wu, Yuan-Bao,Zhao, Zi-Fu,Gao, Shan,&Wu, Fu-Yuan.(2006).Zircon U-Pb age and Hf isotope evidence for 3.8 Ga crustal remnant and episodic reworking of Archean crust in South China.EARTH AND PLANETARY SCIENCE LETTERS,252(1-2),56-71. |
| MLA | Zhang, Shao-Bing,et al."Zircon U-Pb age and Hf isotope evidence for 3.8 Ga crustal remnant and episodic reworking of Archean crust in South China".EARTH AND PLANETARY SCIENCE LETTERS 252.1-2(2006):56-71. |
入库方式： OAI收割
来源：地质与地球物理研究所
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