中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
Tectonic evolution of the southeastern margin of the Yangtze Block: Constraints from SHRIMP U-Pb and LA-ICP-MS Hf isotopic studies of zircon from the eastern Jiangnan Orogenic Belt and implications for the tectonic interpretation of South China

文献类型：期刊论文

作者Yin, Changqing1,2; Lin, Shoufa1,3; Davis, Donald W.4; Xing, Guangfu5; Davis, William J.6; Cheng, Guanghua5; Xiao, Wenjiao2; Li, Longming1,2
刊名PRECAMBRIAN RESEARCH
出版日期2013-10-01
卷号236页码:145-156
关键词U-pb Age Hf Isotope Back-arc Basin Jiangnan Belt Yangtze Block Accretionary Orogen
ISSN号0301-9268
DOI10.1016/j.precamres.2013.07.022
文献子类Article
英文摘要The Jiangnan Orogenic Belt is a NE-SW trending fold belt in the southeastern Yangtze Block of South China. The eastern segment of the belt, located in northeastern Jiangxi and southern Anhui provinces, is predominated by greenschist-facies metamorphosed volcanic-sedimentary strata with minor ophiolite, and their protoliths are considered to have formed in a back-arc basin. Zircon SHRIMP U-Pb dating reveals that these rocks were deposited/emplaced in the period 842-825 Ma. Zircon LA-ICP-MS Hf analyses show that most igneous zircons from the volcanic-sedimentary rocks possess positive epsilon(Hf)(t) values of 0.09-12.74, corresponding to depleted-source model ages of 0.9-1.4 Ga. This suggests a significant Neoproterozoic juvenile crustal growth event in the southeastern part of the Yangtze Block, which is also documented by gabbro (833 Ma) from ophiolite with positive epsilon(Hf)(t) values of 5.24-13.25 and hafnium model ages of 0.87-1.20 Ga. These new data, combined with previous results, indicate the presence of an arc and back-arc basin system along the southeastern margin of the Yangtze Block at 842-825 Ma. Collision of the arc with the proposed Shuangxiwu Composite Terrane, which had previously formed away from the southeastern margin of the Yangtze Block through possible subduction and collision, led to the closure of the back-arc basin and the formation of the Jiangnan Belt in the period 825-815 Ma. We suggest that South China is an accretionary orogen and that orogen-parallel motion along terrane-bounding shear zones may have played a significant role in its amalgamation. (C) 2013 Elsevier B.V. All rights reserved.
WOS关键词NEOPROTEROZOIC MAFIC ROCKS ; VOLCANIC-ROCKS ; GEOCHEMICAL EVIDENCE ; CATHAYSIA BLOCKS ; CRUSTAL EVOLUTION ; RIFT MAGMATISM ; TRACE-ELEMENT ; SE CHINA ; RODINIA ; AGE
WOS研究方向Geology
语种英语
WOS记录号WOS:000328806100011
出版者ELSEVIER SCIENCE BV
资助机构Natural Sciences and Engineering Research Council of Canada grants ; Natural Sciences and Engineering Research Council of Canada grants ; Natural Sciences and Engineering Research Council of Canada grants ; Natural Sciences and Engineering Research Council of Canada grants ; China Geological Survey grants(1212011121116) ; China Geological Survey grants(1212011121116) ; China Geological Survey grants(1212011121116) ; China Geological Survey grants(1212011121116) ; China NSFC grant(40725009) ; China NSFC grant(40725009) ; China NSFC grant(40725009) ; China NSFC grant(40725009) ; Natural Sciences and Engineering Research Council of Canada grants ; Natural Sciences and Engineering Research Council of Canada grants ; Natural Sciences and Engineering Research Council of Canada grants ; Natural Sciences and Engineering Research Council of Canada grants ; China Geological Survey grants(1212011121116) ; China Geological Survey grants(1212011121116) ; China Geological Survey grants(1212011121116) ; China Geological Survey grants(1212011121116) ; China NSFC grant(40725009) ; China NSFC grant(40725009) ; China NSFC grant(40725009) ; China NSFC grant(40725009) ; Natural Sciences and Engineering Research Council of Canada grants ; Natural Sciences and Engineering Research Council of Canada grants ; Natural Sciences and Engineering Research Council of Canada grants ; Natural Sciences and Engineering Research Council of Canada grants ; China Geological Survey grants(1212011121116) ; China Geological Survey grants(1212011121116) ; China Geological Survey grants(1212011121116) ; China Geological Survey grants(1212011121116) ; China NSFC grant(40725009) ; China NSFC grant(40725009) ; China NSFC grant(40725009) ; China NSFC grant(40725009) ; Natural Sciences and Engineering Research Council of Canada grants ; Natural Sciences and Engineering Research Council of Canada grants ; Natural Sciences and Engineering Research Council of Canada grants ; Natural Sciences and Engineering Research Council of Canada grants ; China Geological Survey grants(1212011121116) ; China Geological Survey grants(1212011121116) ; China Geological Survey grants(1212011121116) ; China Geological Survey grants(1212011121116) ; China NSFC grant(40725009) ; China NSFC grant(40725009) ; China NSFC grant(40725009) ; China NSFC grant(40725009)
源URL[http://ir.iggcas.ac.cn/handle/132A11/86420]  
专题中国科学院地质与地球物理研究所
通讯作者Lin, Shoufa
作者单位1.Univ Waterloo, Dept Earth & Environm Sci, Waterloo, ON N2L 3G1, Canada
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.Hefei Univ Technol, Sch Resources & Environm, Hefei 230026, Peoples R China
4.Univ Toronto, Dept Earth Sci, Toronto, ON M5S 3B1, Canada
5.Nanjing Inst Geol & Mineral Resources, Nanjing 210016, Jiangsu, Peoples R China
6.Geol Survey Canada, Ottawa, ON K1A 0E8, Canada
推荐引用方式
GB/T 7714		 Yin, Changqing,Lin, Shoufa,Davis, Donald W.,et al. Tectonic evolution of the southeastern margin of the Yangtze Block: Constraints from SHRIMP U-Pb and LA-ICP-MS Hf isotopic studies of zircon from the eastern Jiangnan Orogenic Belt and implications for the tectonic interpretation of South China[J]. PRECAMBRIAN RESEARCH,2013,236:145-156.
APA Yin, Changqing.,Lin, Shoufa.,Davis, Donald W..,Xing, Guangfu.,Davis, William J..,...&Li, Longming.(2013).Tectonic evolution of the southeastern margin of the Yangtze Block: Constraints from SHRIMP U-Pb and LA-ICP-MS Hf isotopic studies of zircon from the eastern Jiangnan Orogenic Belt and implications for the tectonic interpretation of South China.PRECAMBRIAN RESEARCH,236,145-156.
MLA Yin, Changqing,et al."Tectonic evolution of the southeastern margin of the Yangtze Block: Constraints from SHRIMP U-Pb and LA-ICP-MS Hf isotopic studies of zircon from the eastern Jiangnan Orogenic Belt and implications for the tectonic interpretation of South China".PRECAMBRIAN RESEARCH 236(2013):145-156.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。