Geochemistry, Geochronology, and Hf isotopic Composition of the Late Paleoproterozoic Lujiapuzi Formation, NE Yan-Liao Rift, Northern Liaoning

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	Geochemistry, Geochronology, and Hf isotopic Composition of the Late Paleoproterozoic Lujiapuzi Formation, NE Yan-Liao Rift, Northern Liaoning
其他题名	Geochemistry, Geochronology, and Hf isotopic Composition of the Late Paleoproterozoic Lujiapuzi Formation, NE Yan-Liao Rift, Northern Liaoning
	Liu Jin 1; Zhang Jian 1; Liu Zhenghong 2; Yin Changqing 1; Zhao Chen 1; Peng Youbo 3; Dou Shiyong 3; Yang Zhongjie 3
	2018
发表期刊	ACTA GEOLOGICA SINICA-ENGLISH EDITION
ISSN	1000-9515
卷号	92 期号:6 页码:2136-2156
摘要	The metasedimentary Lujiapuzi Formation crops out along the northeastern margin of the North China Craton, close to the Yan-Liao Rift. The age and tectonic setting of the formation, and its relationship with the Yan-Liao Rift are currently unclear. Here we present detrital zircon U-Pb ages, and Hf isotopic and geochemical data for the Lujiapuzi Formation to constrain the timing of deposition, the provenance of the formation, and the regional stratigraphy relationship. Zircon U-Pb dating constrains the timing of deposition of the Lujiapuzi Formation to younger than 1780 Ma, and indicates that most grains were sourced from the Longgang Block and the Paleoproterozoic Liao-Ji Belt. Detailed field investigations and a correlation of the regional stratigraphy reveal that much of the Lujiapuzi Formation is equivalent to the Tuanshanzi Formation in the Yan-Liao Rift; the lower section may represent the earliest sediments deposited within the Fanhe Basin. Based on these results and the findings of previous studies, we suggest that the base of the Changcheng System has an age of 1.80 Ga. Zircon Hf isotopic data indicate that the main period of crustal growth along the northeastern margin of the North China Craton occurred at 3.2-2.5 Ga, with a peak at 2.9-2.7 Ga.
其他摘要	The metasedimentary Lujiapuzi Formation crops out along the northeastern margin of the North China Craton, close to the Yan-Liao Rift. The age and tectonic setting of the formation, and its relationship with the Yan-Liao Rift are currently unclear. Here we present detrital zircon U-Pb ages, and Hf isotopic and geochemical data for the Lujiapuzi Formation to constrain the timing of deposition, the provenance of the formation, and the regional stratigraphy relationship. Zircon U-Pb dating constrains the timing of deposition of the Lujiapuzi Formation to younger than 1780 Ma, and indicates that most grains were sourced from the Longgang Block and the Paleoproterozoic Liao-Ji Belt. Detailed field investigations and a correlation of the regional stratigraphy reveal that much of the Lujiapuzi Formation is equivalent to the Tuanshanzi Formation in the Yan-Liao Rift; the lower section may represent the earliest sediments deposited within the Fanhe Basin. Based on these results and the findings of previous studies, we suggest that the base of the Changcheng System has an age of 1.80 Ga. Zircon Hf isotopic data indicate that the main period of crustal growth along the northeastern margin of the North China Craton occurred at 3.2-2.5 Ga, with a peak at 2.9-2.7 Ga.
关键词	ZIRCON U-PB ARCHEAN CRUSTAL EVOLUTION CHINA CRATON EVIDENCE LU-HF GRANITIC MAGMATISM DETRITAL ZIRCONS EASTERN BLOCK ICP-MS GEOLOGICAL SIGNIFICANCE TECTONIC SIGNIFICANCE detrital zircon crustal growth Changcheng System Yan-Liao rift North China Craton
收录类别	CSCD
语种	英语
资助项目	[Nature Science Foundation of China] ; [12th Chinese 1000 Young Talents Program] ; [National Nature Science Foundation of China] ; [China Postdoctoral Science Foundation] ; [China Geological Survey]
CSCD记录号	CSCD:6395252
引用统计	被引频次：1[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/157701
专题	中国科学院金属研究所
作者单位	1.中国科学院广州地球化学研究所 2.吉林大学 3.中国科学院金属研究所
推荐引用方式 GB/T 7714	Liu Jin,Zhang Jian,Liu Zhenghong,et al. Geochemistry, Geochronology, and Hf isotopic Composition of the Late Paleoproterozoic Lujiapuzi Formation, NE Yan-Liao Rift, Northern Liaoning[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2018,92(6):2136-2156.
APA	Liu Jin.,Zhang Jian.,Liu Zhenghong.,Yin Changqing.,Zhao Chen.,...&Yang Zhongjie.(2018).Geochemistry, Geochronology, and Hf isotopic Composition of the Late Paleoproterozoic Lujiapuzi Formation, NE Yan-Liao Rift, Northern Liaoning.ACTA GEOLOGICA SINICA-ENGLISH EDITION,92(6),2136-2156.
MLA	Liu Jin,et al."Geochemistry, Geochronology, and Hf isotopic Composition of the Late Paleoproterozoic Lujiapuzi Formation, NE Yan-Liao Rift, Northern Liaoning".ACTA GEOLOGICA SINICA-ENGLISH EDITION 92.6(2018):2136-2156.