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Juxtaposition of allochthonous terranes in the central Korean Peninsula: Evidence from zircon U-Pb ages and O-Hf isotopes in Jurassic granitoids

文献类型：期刊论文

作者Jo, Hui Je1; Cheong, Albert Chang-sik1; Yi, Keewook1; Li, Xian-Hua2
刊名CHEMICAL GEOLOGY
出版日期2018-05-05
卷号484页码:136-147
关键词Korean Peninsula Collisional Orogeny Inherited Zircon Age Pattern o Isotope Hf Isotope
ISSN号0009-2541
DOI10.1016/j.chemgeo.2017.10.006
文献子类Article
英文摘要The eventual docking of an exotic continental mass over the course of a Wilson cycle is marked by intracontinental sites of prograde metamorphism, contractional deformation, and syn- or post-collisional magmatism. This study shows that inherited premagmatic zircon in subsequently emplaced granitoid rocks provides another line of evidence for the collisional orogeny. Following the continental collision between the North and South China Cratons, Jurassic granitoids intruded widely throughout the central Korean Peninsula in association with the subduction of the Paleo-Pacific plate. The latest Early to Middle Jurassic (177-167 Ma) granitoids occur throughout the cratonic Gyeonggi Massif, whereas Early Jurassic (194-184 Ma) granitoids occur locally along the Okcheon Metamorphic Belt to the southeast of the massif. These two spatiotemporal groups differ profoundly in their age patterns and O-Hf isotopic signatures of inherited zircon. The younger group yields a typically North China-like Archean-Paleoproterozoic (mostly 2.5-1.8 Ga) zircon inheritance. In contrast, inherited zircons from the older group exhibit exclusively Neoproterozoic (ca. 0.9-0.7 Ga) and Paleozoic (ca. 0.4 Ga) cluster along with Archean-Paleoproterozoic populations. The exotic feature of the protolith of the older group is further indicated by significantly lower delta O-18 (-0.9 to + 4.9%) and positive epsilon Hf (+ 3 to + 15) values of the Cryogenian zircon cores. The results of zircon analysis demonstrate that South and North China-like terranes were juxtaposed infracrustally along the southeastern margin of the Gyeonggi Massif during the pre-Jurassic collisional orogeny, and then selectively provided major source material to the older and younger Jurassic granitoids, respectively.
WOS关键词EARTH-ELEMENT MINERALIZATION ; ASIAN CONTINENTAL-MARGIN ; CHINA CRATON EVIDENCE ; SOUTH CHINA ; NORTH CHINA ; DETRITAL ZIRCON ; COLLISION BELT ; ARC MAGMATISM ; YANGTZE BLOCK ; NEOPROTEROZOIC GRANITOIDS
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000429492700011
出版者ELSEVIER SCIENCE BV
资助机构Korea Basic Science Institute grant - Korea government (MSIP)(T37414 ; Korea Basic Science Institute grant - Korea government (MSIP)(T37414 ; National Research Foundation of Korea (NRF) grant - Korea government (MSIP)(2016R1A2B4007283) ; National Research Foundation of Korea (NRF) grant - Korea government (MSIP)(2016R1A2B4007283) ; 2016R1A2B4007283) ; 2016R1A2B4007283) ; Korea Basic Science Institute grant - Korea government (MSIP)(T37414 ; Korea Basic Science Institute grant - Korea government (MSIP)(T37414 ; National Research Foundation of Korea (NRF) grant - Korea government (MSIP)(2016R1A2B4007283) ; National Research Foundation of Korea (NRF) grant - Korea government (MSIP)(2016R1A2B4007283) ; 2016R1A2B4007283) ; 2016R1A2B4007283) ; Korea Basic Science Institute grant - Korea government (MSIP)(T37414 ; Korea Basic Science Institute grant - Korea government (MSIP)(T37414 ; National Research Foundation of Korea (NRF) grant - Korea government (MSIP)(2016R1A2B4007283) ; National Research Foundation of Korea (NRF) grant - Korea government (MSIP)(2016R1A2B4007283) ; 2016R1A2B4007283) ; 2016R1A2B4007283) ; Korea Basic Science Institute grant - Korea government (MSIP)(T37414 ; Korea Basic Science Institute grant - Korea government (MSIP)(T37414 ; National Research Foundation of Korea (NRF) grant - Korea government (MSIP)(2016R1A2B4007283) ; National Research Foundation of Korea (NRF) grant - Korea government (MSIP)(2016R1A2B4007283) ; 2016R1A2B4007283) ; 2016R1A2B4007283)
源URL[http://ir.iggcas.ac.cn/handle/132A11/88340]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Cheong, Albert Chang-sik
作者单位1.Korea Basic Sci Inst, Div Earth & Environm Sci, Chungcheongbukdo 28119, South Korea
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100027, Peoples R China
推荐引用方式
GB/T 7714		 Jo, Hui Je,Cheong, Albert Chang-sik,Yi, Keewook,et al. Juxtaposition of allochthonous terranes in the central Korean Peninsula: Evidence from zircon U-Pb ages and O-Hf isotopes in Jurassic granitoids[J]. CHEMICAL GEOLOGY,2018,484:136-147.
APA Jo, Hui Je,Cheong, Albert Chang-sik,Yi, Keewook,&Li, Xian-Hua.(2018).Juxtaposition of allochthonous terranes in the central Korean Peninsula: Evidence from zircon U-Pb ages and O-Hf isotopes in Jurassic granitoids.CHEMICAL GEOLOGY,484,136-147.
MLA Jo, Hui Je,et al."Juxtaposition of allochthonous terranes in the central Korean Peninsula: Evidence from zircon U-Pb ages and O-Hf isotopes in Jurassic granitoids".CHEMICAL GEOLOGY 484(2018):136-147.

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来源：地质与地球物理研究所

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