PbSL dating of garnet and staurolite: Constraints on the Paleoproterozoic crustal evolution of the Eastern Block, North China Craton
文献类型:期刊论文
作者 | Xie, Lie-Wen1; Yang, Jin-Hui1; Wu, Fu-Yuan1; Yang, Yue-Heng1; Wilde, Simon A.2 |
刊名 | JOURNAL OF ASIAN EARTH SCIENCES
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出版日期 | 2011-07-10 |
卷号 | 42期号:1-2页码:142-154 |
关键词 | Eastern Block North China Craton Liaohe Group Jiao-liao-ji Belt Pb Step-leaching Dating Garnet Staurolite |
ISSN号 | 1367-9120 |
DOI | 10.1016/j.jseaes.2011.04.016 |
文献子类 | Article |
英文摘要 | It is well accepted that the North China Craton formed by assembly of the Eastern and Western blocks along the Trans-North China Orogen, with cratonization in the Paleoproterozoic (similar to 1.85 Ma). However, there is controversy about the formation of the Eastern and Western blocks themselves, especially the timing of cratonization of the Eastern Block. The Jiao-Liao-Ji orogenic belt is the most important Paleoproterozoic Orogenic belt in the Eastern Block and consists mainly of the North and South Liaohe Groups and the Liaoji Granitoids. The timing of metamorphism of the Liaohe Group is the key to understanding the evolution of the Eastern Block of the North China Craton. Because the isotope systematics of metamorphic minerals can be used to date parts of the prograde thermal histories of metamorphic belts, dating of minerals, such as garnet and staurolite has the distinct advantage that time information can be related directly to the pressure-temperature-deformation history recorded by the same mineral. In this paper we present results of precise (207)Pb/(206)Pb stepwise-leaching (PbSL) dating of garnet and staurolite from the metasedimentary rocks of the south Liaohe Group. The primitive Pb and radiogenic Pb are selectively extracted from garnet and straurolite by leach steps and determined by multiple collector (MC-) ICP-MS. The garnet and staurolite record two groups of (207)Pb/(206)Pb ages, at 1.93-1.91 Ga and similar to 1.86 Ga. respectively. These constrain the time of peak metamorphism of the Liaohe Group during collision between the Longgang Block in the north and the Liaonan (Nangrim) Block in the south and a subsequent post-collisional event, respectively. Our data for the South Liaohe Group and previously published data for the Liaoji Granite, combined with key lithological, structural and metamorphic information, indicate that the cratonization of the Eastern Block of the North China Craton occurred at 1.93-1.91 Ga. (C) 2011 Elsevier Ltd. All rights reserved. |
WOS关键词 | LIAO-JI BELT ; COLLECTOR ICP-MS ; ZIRCON U-PB ; ISOTOPE RATIO MEASUREMENTS ; LIMPOPO BELT ; JIAOBEI MASSIF ; DOUBLE SPIKE ; GEOCHRONOLOGY ; METAMORPHISM ; DISSOLUTION |
WOS研究方向 | Geology |
语种 | 英语 |
WOS记录号 | WOS:000293488500012 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
资助机构 | National Science Foundation of China(40873009 ; National Science Foundation of China(40873009 ; National Science Foundation of China(40873009 ; National Science Foundation of China(40873009 ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; 40925007) ; 40925007) ; 40925007) ; 40925007) ; National Science Foundation of China(40873009 ; National Science Foundation of China(40873009 ; National Science Foundation of China(40873009 ; National Science Foundation of China(40873009 ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; 40925007) ; 40925007) ; 40925007) ; 40925007) ; National Science Foundation of China(40873009 ; National Science Foundation of China(40873009 ; National Science Foundation of China(40873009 ; National Science Foundation of China(40873009 ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; 40925007) ; 40925007) ; 40925007) ; 40925007) ; National Science Foundation of China(40873009 ; National Science Foundation of China(40873009 ; National Science Foundation of China(40873009 ; National Science Foundation of China(40873009 ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; State Key Laboratory of Lithospheric Evolution(Zhuan 0809) ; 40925007) ; 40925007) ; 40925007) ; 40925007) |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/73516] ![]() |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Xie, Lie-Wen |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Curtin Univ Technol, Dept Appl Geol, Perth, WA 6845, Australia |
推荐引用方式 GB/T 7714 | Xie, Lie-Wen,Yang, Jin-Hui,Wu, Fu-Yuan,et al. PbSL dating of garnet and staurolite: Constraints on the Paleoproterozoic crustal evolution of the Eastern Block, North China Craton[J]. JOURNAL OF ASIAN EARTH SCIENCES,2011,42(1-2):142-154. |
APA | Xie, Lie-Wen,Yang, Jin-Hui,Wu, Fu-Yuan,Yang, Yue-Heng,&Wilde, Simon A..(2011).PbSL dating of garnet and staurolite: Constraints on the Paleoproterozoic crustal evolution of the Eastern Block, North China Craton.JOURNAL OF ASIAN EARTH SCIENCES,42(1-2),142-154. |
MLA | Xie, Lie-Wen,et al."PbSL dating of garnet and staurolite: Constraints on the Paleoproterozoic crustal evolution of the Eastern Block, North China Craton".JOURNAL OF ASIAN EARTH SCIENCES 42.1-2(2011):142-154. |
入库方式: OAI收割
来源:地质与地球物理研究所
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