Zircon U-Pb and Hf isotopic constraints on the Early Archean crustal evolution in Anshan of the North China Craton
文献类型：期刊论文
| 作者 | Wu, Fu-Yuan; Zhang, Yan-Bin; Yang, Jin-Hui; Xie, Lie-Wen; Yang, Yue-Heng |
| 刊名 | PRECAMBRIAN RESEARCH
 |
| 出版日期 | 2008-12-10 |
| 卷号 | 167期号:3-4页码:339-362 |
| 关键词 | Crust-mantle evolution Zircon Hf isotopes U-Pb dating Early Archean North China Craton |
| ISSN号 | 0301-9268 |
| DOI | 10.1016/j.precamres.2008.10.002 |
| 文献子类 | Review |
| 英文摘要 | The North China Craton is one of the few places in the world where > 3.8 Ga crustal material exists since, zircons of this age have been found in the Baijiafen and Dongshan gneisses from Anshan in northeastern China. However, it has been questioned whether any 3.8 Ga rock exists in the area, since various younger zircons exist within single rock samples, and zircons with age of similar to 3.8 Ga are few and can be interpreted as inherited in origin. A study of zircons using combined cathodoluminescence imaging and SHRIMP U-Pb dating indicates that the Baijiafen and Dongshan gneisses record several stages of granitic magmatism. The oldest magmatic event is recorded by a zircon with an age of 3887 +/- 5 Ma, with a subsequent magmatic event at 3.8 Ga (3808 +/- 24, 3798 +/- 30, 3802 +/- 11 and 3799 +/- 6 Ma), confirming the existence of 3.8 Ga materials in the area. The next magmatic event took place at similar to 3.6-3.7 Ga. However, all samples contain younger zircons with ages of 3.1-3.3 Ga, although they contain a few zircon grains with ages of similar to 3.6-3.8 Ga. The 3.1-3.3 Ga zircons show typical igneous oscillatory zoning and do not show any evidence that were produced by metamorphism, indicating that these samples were emplaced at 3.3 and 3.1 Ga, respectively and the zircons with older ages are interpreted as inherited in origin. The exposure of 3.8 Ga rock is therefore much smaller than previously thought. In situ zircon Hf isotopic analyses indicate that these granitic rocks were derived from juvenile crust with age peaks of crustal growth at similar to 3.4. 3.6 and 3.9 Ga. there is no evidence for existence of crustal material older than 4.0 Ga. (c) 2008 Elsevier B.V. All rights reserved. |
| WOS关键词 | SOUTHERN WEST GREENLAND ; ITSAQ GNEISS COMPLEX ; COMBINED ION-MICROPROBE ; EARLY EARTH DIFFERENTIATION ; OLD DETRITAL ZIRCONS ; CONTINENTAL-CRUST ; LU-HF ; JACK-HILLS ; HAFNIUM ISOTOPES ; GA ZIRCONS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000261719500007 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | Natural Science Foundation of China(40634019 ; Natural Science Foundation of China(40634019 ; 40721062) ; 40721062) ; Natural Science Foundation of China(40634019 ; Natural Science Foundation of China(40634019 ; 40721062) ; 40721062) ; Natural Science Foundation of China(40634019 ; Natural Science Foundation of China(40634019 ; 40721062) ; 40721062) ; Natural Science Foundation of China(40634019 ; Natural Science Foundation of China(40634019 ; 40721062) ; 40721062) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68722]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wu, Fu-Yuan |
| 作者单位 | Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Fu-Yuan,Zhang, Yan-Bin,Yang, Jin-Hui,et al. Zircon U-Pb and Hf isotopic constraints on the Early Archean crustal evolution in Anshan of the North China Craton[J]. PRECAMBRIAN RESEARCH,2008,167(3-4):339-362. |
| APA | Wu, Fu-Yuan,Zhang, Yan-Bin,Yang, Jin-Hui,Xie, Lie-Wen,&Yang, Yue-Heng.(2008).Zircon U-Pb and Hf isotopic constraints on the Early Archean crustal evolution in Anshan of the North China Craton.PRECAMBRIAN RESEARCH,167(3-4),339-362. |
| MLA | Wu, Fu-Yuan,et al."Zircon U-Pb and Hf isotopic constraints on the Early Archean crustal evolution in Anshan of the North China Craton".PRECAMBRIAN RESEARCH 167.3-4(2008):339-362. |
入库方式： OAI收割
来源：地质与地球物理研究所
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