Tectonic setting of the Helong Block: Implications for the northern boundary of the eastern North China Craton
文献类型：期刊论文
| 作者 | Zhang, YB; Wu, FY; Zhai, MG; Lu, XP |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2005-10-01 |
| 卷号 | 48期号:10页码:1599-1612 |
| 关键词 | La-icpms Ziron U-pb Dating Bailiping Complex Helong Block North China Craton Sr-nd Isotope |
| ISSN号 | 1006-9313 |
| DOI | 10.1360/02yd0282 |
| 文献子类 | Article |
| 英文摘要 | LA-ICP-MS zircon U-Pb dating indicates that the Bailiping granitic pluton was emplaced during Late Paleozoic to Early Cretaceous (285-116 Ma) by four distinct magmatic episodes, arguing against the previous thought that the Bailiping granites were emplaced during Archean, Proterozoic or Early Paleozoic. It is suggested that the so-called Archean Jinchengdong granite-greenstone belt, mainly composed of Bailiping granites, should be broken down. Sr-Nd isotopic compositions of the Bailiping granites are similar to those of the Phanerozoic granites in the Xing'an-Mongolian orogenic belt, suggesting that their parental magmas were mainly derived from a juvenile crust with some contamination of ancient crustal materials during magma rising and/or emplacement. Therefore, the basement of the Helong Block is similar to that in the northern Xing'an-Mongolian Orogenic Belt, but different from that of the North China Craton. It is proposed that the Archean Jinchengdong complex in this area is probably an exotic slice from the North China Craton, which indicates that the Fu'erhe-Gudonghe Fault, located in northern part of the Helong area, is not the boundary between the North China Craton and the Xing'an-Mongolian Orogenic Belt. The possible boundary should be located further southward more than 50 km and near the Baitoushan volcano. |
| WOS关键词 | NORTHEASTERN CHINA ; CRUSTAL GROWTH ; ICP-MS ; U-PB ; GRANITES ; AGE ; ABLATION ; ZIRCONS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000233344000003 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65674]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang, YB |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Reg Geol & Mineral Resources Survey Jilin Provinc, Changchun 130062, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, YB,Wu, FY,Zhai, MG,et al. Tectonic setting of the Helong Block: Implications for the northern boundary of the eastern North China Craton[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2005,48(10):1599-1612. |
| APA | Zhang, YB,Wu, FY,Zhai, MG,&Lu, XP.(2005).Tectonic setting of the Helong Block: Implications for the northern boundary of the eastern North China Craton.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,48(10),1599-1612. |
| MLA | Zhang, YB,et al."Tectonic setting of the Helong Block: Implications for the northern boundary of the eastern North China Craton".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 48.10(2005):1599-1612. |
入库方式： OAI收割
来源：地质与地球物理研究所
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