Hf isotopes of zircon megacrysts from the Cenozoic basalts in eastern China
文献类型：期刊论文
| 作者 | Qu, ZL; Wu, FY; Yu, QY; Xie, LW; Yang, SF |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2005-11-01 |
| 卷号 | 50期号:22页码:2602-2611 |
| 关键词 | Hf Isotopes Zircon Megacryst Lithospheric Mantle Cenozoic Basalt Eastern China |
| ISSN号 | 1001-6538 |
| 文献子类 | Article |
| 英文摘要 | Cenozoic basalts are widely distributed in eastern China, and some of them contain zircon megacrysts which are considered to be constituent mineral of the subcontinental lithospheric mantle (SCLM) and petrogenetically related to mantle metasomatism induced by addition of crustal materials. Using the Laser Ablation Multiple Collector Inductively Coupled Plasma Mass Spectrometry (LA-MC-ICPMS), zircon megacrysts from the Cenozoic basalts at Changle in Shandong, Mingxi in Fujian, and Penglai in Hainan provinces have been used for Hf isotopic analyses. The data indicate that there is no significant deviation for the different zircon grains in each locale, except those from Penglai. The obtained Hf-116/Hf-177 ratios are 0.28302-0.28308 for Changle, 0.28297-0.28300 for Mingxi, and 0.28288-0.28293 for Penglai, with corresponding epsilon(Hf) values of 8.7-10.8, 7.0-7.9, and 3.9-5.7, respectively. These data display that there existed some regional heterogeneity, but the Hf model ages clustere in the Phanerozoic. Therefore, it is inferred that metasomatism of the lithospheric mantle beneath eastern China took place in the Phanerozoic, most probably in the Mesozoic-Cenozoic. However, the formation time of the lithospheric mantle is not clearly constrained based on the present Hf isotopic data. |
| WOS关键词 | TRACE-ELEMENT COMPOSITION ; UPPER-MANTLE PERIDOTITE ; LU-HF ; SE CHINA ; U-PB ; MC-ICPMS ; KIMBERLITIC ZIRCONS ; LITHOSPHERIC MANTLE ; KAAPVAAL CRATON ; BENI-BOUSERA |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000234866000013 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65046]  |
| 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, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Zhejiang Univ, Dept Earth Sci, Hangzhou 310027, Peoples R China 3.Sun Yat Sen Univ, Dept Geosci, Guangzhou 510275, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qu, ZL,Wu, FY,Yu, QY,et al. Hf isotopes of zircon megacrysts from the Cenozoic basalts in eastern China[J]. CHINESE SCIENCE BULLETIN,2005,50(22):2602-2611. |
| APA | Qu, ZL,Wu, FY,Yu, QY,Xie, LW,&Yang, SF.(2005).Hf isotopes of zircon megacrysts from the Cenozoic basalts in eastern China.CHINESE SCIENCE BULLETIN,50(22),2602-2611. |
| MLA | Qu, ZL,et al."Hf isotopes of zircon megacrysts from the Cenozoic basalts in eastern China".CHINESE SCIENCE BULLETIN 50.22(2005):2602-2611. |
入库方式： OAI收割
来源：地质与地球物理研究所
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