U-Pb and Hf isotopic study of detrital zircons from the Wulashan khondalites: Constraints on the evolution of the Ordos Terrane, western block of the North China Craton
文献类型：期刊论文
| 作者 | Xia, XP; Sun, M; Zhao, GC; Wu, FY; Xu, P; Zhang, JH; Luo, Y |
| 刊名 | EARTH AND PLANETARY SCIENCE LETTERS
 |
| 出版日期 | 2006-01-31 |
| 卷号 | 241期号:3-4页码:581-593 |
| 关键词 | detrital zircon LA-ICPMS U-Pb age Hf isotope khondalite North China Craton |
| ISSN号 | 0012-821X |
| DOI | 10.1016/j.epsl.2005.11.024 |
| 文献子类 | Article |
| 英文摘要 | Detrital zircons from the Wulashan khondalites in the Ordos Terrane, western block of the North China Craton, give U-Pb ages between 1.84 and 2.32 Ga, showing that their provenance was dominated by Paleoproterozoic rocks, much younger than those exposed in the Eastem Block. These zircons have oscillatory growth zoning and possess epsilon(Hf) values between -8 and +9, suggesting derivation of their precursor magmas from old crust and juvenile materials from the mantle. The lowest epsilon(Hf) values of zircons with different ages give a line that intersects the depleted mantle line at about 2.6 Ga in a epsilon(Hf) vs. time diagram. This may imply that the precursor magma source in the deep level of the crust was largely separated from the mantle similar to 2.6 Ga ago and therefore 2.6 Ga may be an important crustal formation period for the terrane. One khondalite sample has detrital zircons with a single age population at similar to 2.0 Ga and positive e(Hf) values from +1 to +9, clearly recording the significant addition of juvenile materials at similar to 2.0 Ga in the source region. This may inspire us to seek whether there was a connection between a mantle superevent and the formation of Columbia supercontinent. Data of this study exclusively demonstrate that the Ordos Terrane was developed independently from the Eastern Block until assembly of the Columbia supercontinent. Therefore, tectonic models involving that the whole North China Craton was cratonized. 2.5 Ga ago should be dismissed. (c) 2005 Elsevier B.V. All rights reserved. |
| WOS关键词 | PALEOPROTEROZOIC TECTONIC EVOLUTION ; ARCHEAN CRUSTAL EVOLUTION ; HIGH-PRESSURE GRANULITES ; BASEMENT ROCKS ; MESOPROTEROZOIC SUPERCONTINENT ; RETROGRADED ECLOGITES ; EASTERN GOLDFIELDS ; CONTINENTAL-CRUST ; MASS-SPECTROMETRY ; DEPLETED MANTLE |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000235289000019 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/66852]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Sun, M |
| 作者单位 | 1.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, XP,Sun, M,Zhao, GC,et al. U-Pb and Hf isotopic study of detrital zircons from the Wulashan khondalites: Constraints on the evolution of the Ordos Terrane, western block of the North China Craton[J]. EARTH AND PLANETARY SCIENCE LETTERS,2006,241(3-4):581-593. |
| APA | Xia, XP.,Sun, M.,Zhao, GC.,Wu, FY.,Xu, P.,...&Luo, Y.(2006).U-Pb and Hf isotopic study of detrital zircons from the Wulashan khondalites: Constraints on the evolution of the Ordos Terrane, western block of the North China Craton.EARTH AND PLANETARY SCIENCE LETTERS,241(3-4),581-593. |
| MLA | Xia, XP,et al."U-Pb and Hf isotopic study of detrital zircons from the Wulashan khondalites: Constraints on the evolution of the Ordos Terrane, western block of the North China Craton".EARTH AND PLANETARY SCIENCE LETTERS 241.3-4(2006):581-593. |
入库方式： OAI收割
来源：地质与地球物理研究所
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