Alkaline syenites in eastern Cathaysia (South China): link to Permian-Triassic transtension
文献类型：期刊论文
| 作者 | Wang, Q; Li, JW; Jian, P; Zhao, ZH; Xiong, XL; Bao, ZW; Xu, JF; Li, CF; Ma, JL |
| 刊名 | EARTH AND PLANETARY SCIENCE LETTERS
 |
| 出版日期 | 2005-02-15 |
| 卷号 | 230期号:3-4页码:339-354 |
| 关键词 | Late Permian And Early Triassic Alkaline Syenite Transtension Cathaysia South China |
| ISSN号 | 0012-821X |
| DOI | 10.1016/j.epsl.2004.11.023 |
| 文献子类 | Article |
| 英文摘要 | Two alkaline syenite plutons, the Tieshan and Yangfang plutons, have recently been recognized within NE-trending fault zones in eastern Cathaysia, South China. The rocks are very enriched in K2O (6.28-9.39 wt.%), rare earth elements (REE; particularly light REE) and large ion lithophile elements, but are relatively low in high field strength elements. Isotopically, they are characterized by high initial Sr-87/Sr-86 (0.7093 to 0.7123) and low epsilon(Nd)(t) values (-5.64 to -10.63). The geochemical data suggest that the alkaline syenites most likely formed via fractional crystallization of enriched mantle-derived magmas. Sensitive High-Resolution Ion Microprobe zircon U-Pb dating indicates that these two intrusions have Late Permian (254+/-4 Ma) and Early Triassic (242+/-4 Ma) crystallization ages, respectively. Our data suggest that a tectonic regime dominated by transtension. probably existed from at least the latest Permian into the Triassic and was responsible for the formation of the Tieshan and Yangfang alkaline syenites. When combined with previous paleonnagnetic, structural, and sedimentology data, we suggest that the transtension along the NE-trending strike-slip fault zones was related to oblique subduction of the Pacific plate underneath South China. (C) 2004 Elsevier B.V. All rights reserved. |
| WOS关键词 | A-TYPE GRANITES ; PALEOMAGNETIC CONSTRAINTS ; TECTONIC EVOLUTION ; GEOCHEMICAL CONSTRAINTS ; FLOOD BASALTS ; PETROGENESIS ; COMPLEX ; NORTH ; COLLISION ; FAULT |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000227004800008 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65019]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wang, Q |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.China Univ Geosci, Fac Earth Resources, Wuhan 430074, Peoples R China 3.China Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Q,Li, JW,Jian, P,et al. Alkaline syenites in eastern Cathaysia (South China): link to Permian-Triassic transtension[J]. EARTH AND PLANETARY SCIENCE LETTERS,2005,230(3-4):339-354. |
| APA | Wang, Q.,Li, JW.,Jian, P.,Zhao, ZH.,Xiong, XL.,...&Ma, JL.(2005).Alkaline syenites in eastern Cathaysia (South China): link to Permian-Triassic transtension.EARTH AND PLANETARY SCIENCE LETTERS,230(3-4),339-354. |
| MLA | Wang, Q,et al."Alkaline syenites in eastern Cathaysia (South China): link to Permian-Triassic transtension".EARTH AND PLANETARY SCIENCE LETTERS 230.3-4(2005):339-354. |
入库方式： OAI收割
来源：地质与地球物理研究所
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