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Geochemistry, Geochronology, and Hf isotopic Composition of the Late Paleoproterozoic Lujiapuzi Formation, NE Yan-Liao Rift, Northern Liaoning
Alternative TitleGeochemistry, Geochronology, and Hf isotopic Composition of the Late Paleoproterozoic Lujiapuzi Formation, NE Yan-Liao Rift, Northern Liaoning
Liu Jin1; Zhang Jian1; Liu Zhenghong2; Yin Changqing1; Zhao Chen1; Peng Youbo3; Dou Shiyong3; Yang Zhongjie3
2018
Source PublicationACTA GEOLOGICA SINICA-ENGLISH EDITION
ISSN1000-9515
Volume92Issue:6Pages:2136-2156
AbstractThe 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.
Other AbstractThe 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.
KeywordZIRCON 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
Indexed ByCSCD
Language英语
Funding Project[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 IDCSCD:6395252
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/157701
Collection中国科学院金属研究所
Affiliation1.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
Recommended Citation
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.
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