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  4. 岩石圈演化国家重点实验室
Paleoproterozoic Orosirian tectono-thermal events in the Nangrim Massif, North Korea: Cratonic and supercontinental connection

文献类型：期刊论文

作者Zhang, Xiaohui1,2; Yang, Zhili2,3; Zhang, Yanbin1,2; Zhai, Mingguo1,2,3; Wu, Fuyuan1,2; Peng, Peng1,2; Li, Qiuli1,2; Hou, Quanlin3
刊名LITHOS
出版日期2021-03-01
卷号384页码:16
关键词Magmatic episodes Zircon U-Pb dating Paleoproterozoic Nangrim Massif North Korea
ISSN号0024-4937
DOI10.1016/j.lithos.2021.105983
英文摘要The Paleoproterozoic Orosirian period of ca. 2.05-1.8 Ga saw unique magmatic manifestations of Andean-type arc to Caledonian-style post-collisional batholiths, anorthosite-mangerite- charnockite- granite suites and mafic dyke swarms. Chronicling their timeline in North Korea presents a pivotal task in the palinspatic reconstruction of the Korean Peninsula relative to the North China Craton (NCC) and the supercontinent Columbia. Here we document episodic late Orosirian tectono-thermal events from the northern Nangrim Massif, spanning from ca. 1871-1851 Ma tonalitic intrusions through ca. 1856Ma granites and ca. 1839Ma gabbroic diorites to ca. 1830 Ma mafic dykes and ca. 1828 Ma metamorphism. Meta-gabbroic/doleritic rocks range in SiO2 from 46.6 to 57.8 % and inMgOfrom6.46 to 11.5 %, withmoderately enriched light rare earth elements (La-N/Yb-N= 3.55-12.3) and depleted high field strength elements. Together with their variable zircon eHf(t) values from-10.0 to +5.2, these rocks tend to call for a heterogeneous lithospheric mantle that experienced prior melt depletion and subsequent fluid refertilization. Pyroxene-bearing tonalite-granite suite spans in SiO2 from 59.0 to 76.4 % and exhibits transitional character from magnesian and alkalic to ferroan and calc-alkalic. These elemental features and zircon eHf(t) values of-7.9 to-1.0 are consistent with partial melting of newly- underplatedmaficmiddle crustal protoliths. By combining these newly identified tectono-thermal eventswithmassif-scale coeval syenitegranite suites as well as anatexis-induced metamorphic pulses, we updated the profile of Orosirian tectonothermal episodes in the Nangrim Massif, which present successive snapshots into post-collisional geodynamic processes fromorogenic collapse to lithospheric delamination. This renewed profile not only provides convincing evidence for demarcating the influence scope of the giant Paleoproterozoic Jiao-Liao-Ji-Korean (JLJK) orogeny in the Korean Peninsula, but also offers key reference for applying analogous Phanerozoic accretionary to collisional orogenic processes to their ancient tectono-magmatic expressions. The JLJK case of Orosirian orogeny exemplifies the importance of Phanerozoic-style Wilson orogenic cycle in theamalgamation of the Sino-Korean craton and its incorporation into the Paleoproterozoic supercontinent Nuna-Columbia. (C) 2021 Elsevier B.V. All rights reserved.
WOS关键词ZIRCON U-PB ; LIAO-JI BELT ; NORTHEASTERN YEONGNAM MASSIF ; RAPAKIVI GRANITE BATHOLITH ; PRESSURE MAFIC GRANULITES ; CHINA CRATON ; GYEONGGI MASSIF ; TECTONIC IMPLICATIONS ; SOUTH-KOREA ; METAMORPHIC EVENTS
资助项目National Natural Science Foundation of China[41890834] ; National Natural Science Foundation of China[41530208]
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000652195000023
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/101213]  
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Zhang, Xiaohui
作者单位1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Xiaohui,Yang, Zhili,Zhang, Yanbin,et al. Paleoproterozoic Orosirian tectono-thermal events in the Nangrim Massif, North Korea: Cratonic and supercontinental connection[J]. LITHOS,2021,384:16.
APA Zhang, Xiaohui.,Yang, Zhili.,Zhang, Yanbin.,Zhai, Mingguo.,Wu, Fuyuan.,...&Hou, Quanlin.(2021).Paleoproterozoic Orosirian tectono-thermal events in the Nangrim Massif, North Korea: Cratonic and supercontinental connection.LITHOS,384,16.
MLA Zhang, Xiaohui,et al."Paleoproterozoic Orosirian tectono-thermal events in the Nangrim Massif, North Korea: Cratonic and supercontinental connection".LITHOS 384(2021):16.

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来源：地质与地球物理研究所

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