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In situ U-Pb zircon dating of Devonian sandstones and Paleoproterozoic gneissic granites in the Imjingang Belt: Tectonic implications for the Korean Peninsula and North China
Zhang, Yanbin1; Hu, Bo2; Zhai, Mingguo1,3; Wu, Fuyuan1,3; Hou, Quanlin3; Peng, Peng1; Zhang, Xiaohui1; Li, Qiuli1
2018-09-01
Source PublicationLITHOS
ISSN0024-4937
Volume316Pages:232-242
AbstractThe Imjingang Belt in the Korean Peninsula (KP) attracts much attention because of its critical position in determining the tectonic affiliation of the peninsula. The key to clarifying current controversy lies in the understudied Archaean-Proterozoic basement rocks and Devonian- Carboniferous sedimentary series (i.e.,Imjin Group) in the North Korean part of the belt. In this study, we present geochronological study on magmatic zircons in three Paleoproterozoic gneissic granites and detrital zircons in four clastic rocks of the Imjin Group. SIMS U-Pb zircon analyses on the former reveal that three gneissic granites formed at 1884 +/- 10 Ma, 1875 +/- 10 Ma and 1885 +/- 10 Ma, respectively. They are reminiscent of similarly aged granitic magmatism from the North China Craton (NCC) and in the Nangrim, Gyeonggi and Yeongnam massifs of the KP, thus defining a consistent Paleoproterozoic granitic magmatic event across the NCC and the KP. Detrital zircons from the Puap Formation of the Imjin Group yield age populations of 2.5-23 Ga (similar to 19%), 2.1-1.5 Ga (similar to 15%), 1424-1176 Ma (similar to 9%), 1108-676 Ma (similar to 31%) and 591-388 Ma (similar to 26%). The youngest group gives a weighted mean Pb-206/U-238 age of 401 +/- 3 Ma (n = 15), confirming a depositional age of younger than 400 Ma for the Puap Formation. Together with typical Middle Devonian Givetian and Upper Devonian Famennian standard fossil assemblage in the formation, we constrain the formation to be of Late Devonian. The Puap and Misan formations in the Imjingang Belt show consistent detrital zircon age spectra with those of representative Paleozoic sequences in the Pyongnam and Taebaeksan basins of the KP and the Paleozoic basins in the NCC, implying that the NCC and KP might share congruous tectonic history in the Paleozoic. This can lead to further inferences that the Nangrim and Gyeonggi massifs were connected at least before Late Devonian and that the Imjingang Belt might not be the eastward extension of the Qinling-Dabie-Sulu collisional belt. (C) 2018 Elsevier B.V. All rights reserved.
KeywordKorean Peninsula Imjingang Belt Devonian Detrital zircon U-Pb dating
DOI10.1016/j.lithos.2018.06.028
Funding OrganizationChinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; National Scientific Foundation of China ; National Scientific Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; National Scientific Foundation of China ; National Scientific Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; National Scientific Foundation of China ; National Scientific Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; National Scientific Foundation of China ; National Scientific Foundation of China
WOS KeywordASIAN OROGENIC BELT ; SOUTH-KOREA ; INNER-MONGOLIA ; HF ISOTOPE ; DETRITAL ZIRCONS ; GYEONGGI MASSIF ; SEDIMENTARY-ROCKS ; COLLISION BELT ; PYONGNAM BASIN ; THRUST BELT
Language英语
Funding ProjectChinese State Key Research and Development Program[2016YFE0203000] ; National Scientific Foundation of China[41573048] ; National Scientific Foundation of China[41530208]
Funding OrganizationChinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; National Scientific Foundation of China ; National Scientific Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; National Scientific Foundation of China ; National Scientific Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; National Scientific Foundation of China ; National Scientific Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; National Scientific Foundation of China ; National Scientific Foundation of China
WOS Research AreaGeochemistry & Geophysics ; Mineralogy
WOS SubjectGeochemistry & Geophysics ; Mineralogy
WOS IDWOS:000445992500015
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/89222
Collection岩石圈演化国家重点实验室
Corresponding AuthorZhang, Yanbin
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China
2.Changan Univ, Key Lab Western Chinas Mineral Resources & Geol E, Minist Educ, Xian 710054, Shaanxi, Peoples R China
3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yanbin,Hu, Bo,Zhai, Mingguo,et al. In situ U-Pb zircon dating of Devonian sandstones and Paleoproterozoic gneissic granites in the Imjingang Belt: Tectonic implications for the Korean Peninsula and North China[J]. LITHOS,2018,316:232-242.
APA Zhang, Yanbin.,Hu, Bo.,Zhai, Mingguo.,Wu, Fuyuan.,Hou, Quanlin.,...&Li, Qiuli.(2018).In situ U-Pb zircon dating of Devonian sandstones and Paleoproterozoic gneissic granites in the Imjingang Belt: Tectonic implications for the Korean Peninsula and North China.LITHOS,316,232-242.
MLA Zhang, Yanbin,et al."In situ U-Pb zircon dating of Devonian sandstones and Paleoproterozoic gneissic granites in the Imjingang Belt: Tectonic implications for the Korean Peninsula and North China".LITHOS 316(2018):232-242.
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