中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
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
DOI10.1016/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
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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.

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来源:地质与地球物理研究所

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