Hf isotopes of the 3.8 Ga zircons in eastern Hebei Province, China: Implications for early crustal evolution of the North China Craton
文献类型：期刊论文
| 作者 | Wu, FY; Yang, JH; Liu, XM; Li, TS; Xie, LW; Yang, YH |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2005-11-01 |
| 卷号 | 50期号:21页码:2473-2480 |
| 关键词 | Hf Isotope Zircon Ancient Crust North China Craton |
| ISSN号 | 1001-6538 |
| DOI | 10.1360/982005-629 |
| 文献子类 | Article |
| 英文摘要 | Zircon U-Pb dating indicates that the fuchsite quartzite in eastern Hebei Province was derived from weathering and erosion of the 3.6-3.8 Ga granitic rocks. In-situ zircon Hf analyses show that the Lu-Hf isotopic system remained closed during later thermal disturbances. Zircons with concordant ages have Hf isotopic model ages of about 3.8 Ga, suggesting a recycling of this ancient crust. The similar to 3.8 Ga zircons have similar Hf isotopic compositions to those of chondrite, indicating that their source rocks (granitic rocks) were derived from partial melting of the juvenile crust which originated from a mantle without significant crust-mantle differentiation. Therefore, it is proposed that there was no large-scale crustal growth before similar to 3.8 Ga in eastern Hebei Province. Considering zircon Hf isotopic data from other areas, it is concluded that the most ancient crust in the North China Craton probably formed at about 4.0 Ga, and the possibility to rind crust older than 4.0 Ga is very limited. |
| WOS关键词 | EARLY EARTH DIFFERENTIATION ; U-PB ; DETRITAL ZIRCONS ; CONTINENTAL-CRUST ; WEST GREENLAND ; CASE-HISTORIES ; LU-HF ; DEPLETED MANTLE ; ANSHAN AREA ; ROCKS |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000234865900013 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65474]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wu, FY |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Tecton Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.NW Univ Xian, Dept Geol, Key Lab Continental Dynam, Xian 710069, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, FY,Yang, JH,Liu, XM,et al. Hf isotopes of the 3.8 Ga zircons in eastern Hebei Province, China: Implications for early crustal evolution of the North China Craton[J]. CHINESE SCIENCE BULLETIN,2005,50(21):2473-2480. |
| APA | Wu, FY,Yang, JH,Liu, XM,Li, TS,Xie, LW,&Yang, YH.(2005).Hf isotopes of the 3.8 Ga zircons in eastern Hebei Province, China: Implications for early crustal evolution of the North China Craton.CHINESE SCIENCE BULLETIN,50(21),2473-2480. |
| MLA | Wu, FY,et al."Hf isotopes of the 3.8 Ga zircons in eastern Hebei Province, China: Implications for early crustal evolution of the North China Craton".CHINESE SCIENCE BULLETIN 50.21(2005):2473-2480. |
入库方式： OAI收割
来源：地质与地球物理研究所
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