Zircon U-Pb and Hf isotopic study of Mesozoic felsic rocks from eastern Zhejiang, South China: Geochemical contrast between the Yangtze and Cathaysia blocks
文献类型：期刊论文
| 作者 | Wong, Jean1; Sun, Min1; Xing, Guangfu2; Li, Xian-hua3,4; Zhao, Guochun1; Wong, Kenny1; Wu, Fuyuan4 |
| 刊名 | GONDWANA RESEARCH
 |
| 出版日期 | 2011 |
| 卷号 | 19期号:1页码:244-259 |
| 关键词 | Zircon Lu-hf Isotope Granitoid Zhejiang Province Mesozoic South China |
| ISSN号 | 1342-937X |
| DOI | 10.1016/j.gr.2010.06.004 |
| 文献子类 | Article |
| 英文摘要 | The Jiangshan-Shaoxing Fault Zone (JSFZ) in Zhejiang Province has been proposed to represent a suture between the Yangtze and Cathaysia blocks in South China. In this study, in-situ zircon U-Pb and Hf isotopic analysis and whole-rock major- and trace-element measurement of early to middle Cretaceous felsic rocks across the fault zone were conducted to constrain the nature of the fault zone. Twelve Cretaceous granitoid bodies were sampled from the NW and SE sides of the fault zone, respectively, with composition ranging from diorite to granite (SiO2 = 56.2-76.6 wt.%). These granitoids yielded U-Pb ages ranging from 135-100 Ma, with a systematic variation in zircon Hf isotopic compositions (epsilon(Hf)(t) = +6.9 to -7.0 in the NW side vs. + 1.9 to - 12.9 in the SE side). The T-DM2 values for the granitoids from the NW side are 0.34 to 1.33 Ga, with two peaks at ca. 876 and 1170 Ma respectively, whereas those from the SE side are 0.70 to 1.62 Ga, with a single peak at ca. 1126 Ma. The Hf isotopic disparity for the two sides may indicate a fundamental difference in the lower crustal compositions of the Yangtze and Cathaysia blocks, supporting that the JSFZ is possibly a suture zone between the two blocks. Our results together with the available geological data suggest that the Mesoproterozoic materials are important for both the Yangtze and Cathaysia basement and the Neoproterozoic magmatic activities were important in the Yangtze Block, possibly related to the break-up of the Rodinia supercontinent, but less significant in the Cathaysia Block. This may imply that the two blocks have not completely juxtaposed in the Neoproterozoic. (C) 2010 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved. |
| WOS关键词 | NEOPROTEROZOIC TECTONIC EVOLUTION ; ARCHEAN CRUSTAL EVOLUTION ; PLASMA-MASS SPECTROMETRY ; SOUTHEASTERN CHINA ; JIANGNAN OROGEN ; VOLCANIC-ROCKS ; CONTINENTAL-CRUST ; LU-HF ; STANDARD ZIRCONS ; DETRITAL ZIRCONS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000286960100019 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | Research Grant Council of Hong Kong(HKU 7041/05P) ; Research Grant Council of Hong Kong(HKU 7041/05P) ; Chinese Ministry of Land and Resources(200811015) ; Chinese Ministry of Land and Resources(200811015) ; Chemical Geodynamics Joint Laboratory ; Chemical Geodynamics Joint Laboratory ; HKU ; HKU ; Guangzhou Institute of Geochemistry ; Guangzhou Institute of Geochemistry ; Research Grant Council of Hong Kong(HKU 7041/05P) ; Research Grant Council of Hong Kong(HKU 7041/05P) ; Chinese Ministry of Land and Resources(200811015) ; Chinese Ministry of Land and Resources(200811015) ; Chemical Geodynamics Joint Laboratory ; Chemical Geodynamics Joint Laboratory ; HKU ; HKU ; Guangzhou Institute of Geochemistry ; Guangzhou Institute of Geochemistry ; Research Grant Council of Hong Kong(HKU 7041/05P) ; Research Grant Council of Hong Kong(HKU 7041/05P) ; Chinese Ministry of Land and Resources(200811015) ; Chinese Ministry of Land and Resources(200811015) ; Chemical Geodynamics Joint Laboratory ; Chemical Geodynamics Joint Laboratory ; HKU ; HKU ; Guangzhou Institute of Geochemistry ; Guangzhou Institute of Geochemistry ; Research Grant Council of Hong Kong(HKU 7041/05P) ; Research Grant Council of Hong Kong(HKU 7041/05P) ; Chinese Ministry of Land and Resources(200811015) ; Chinese Ministry of Land and Resources(200811015) ; Chemical Geodynamics Joint Laboratory ; Chemical Geodynamics Joint Laboratory ; HKU ; HKU ; Guangzhou Institute of Geochemistry ; Guangzhou Institute of Geochemistry |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/74001]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Sun, Min |
| 作者单位 | 1.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China 2.Inst Geol & Mineral Resources, Nanjing, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Isotope Geochronol & Geochem, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wong, Jean,Sun, Min,Xing, Guangfu,et al. Zircon U-Pb and Hf isotopic study of Mesozoic felsic rocks from eastern Zhejiang, South China: Geochemical contrast between the Yangtze and Cathaysia blocks[J]. GONDWANA RESEARCH,2011,19(1):244-259. |
| APA | Wong, Jean.,Sun, Min.,Xing, Guangfu.,Li, Xian-hua.,Zhao, Guochun.,...&Wu, Fuyuan.(2011).Zircon U-Pb and Hf isotopic study of Mesozoic felsic rocks from eastern Zhejiang, South China: Geochemical contrast between the Yangtze and Cathaysia blocks.GONDWANA RESEARCH,19(1),244-259. |
| MLA | Wong, Jean,et al."Zircon U-Pb and Hf isotopic study of Mesozoic felsic rocks from eastern Zhejiang, South China: Geochemical contrast between the Yangtze and Cathaysia blocks".GONDWANA RESEARCH 19.1(2011):244-259. |
入库方式： OAI收割
来源：地质与地球物理研究所
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