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Petrology and geochemical characteristics of amphibolite facies rocks in Xunyangba area, South Qinling Orogen, Central China

文献类型：期刊论文

作者Kong, Juanjuan2,5; Wang, Lei1,4; Yao, Yongxiang6; Lin, Jinyan4; Xiao, Yuanyuan3,5,6; Yang, Yiting2
刊名FRONTIERS IN EARTH SCIENCE
出版日期2023-01-12
卷号10页码:23
关键词amphibolite zircon U-Pb age geochemical characteristics Xunyangba area Southern Qinling Orogen
DOI10.3389/feart.2022.1001795
通讯作者Lin, Jinyan(geo-s209@163.com) ; Xiao, Yuanyuan(yuanyuan.xiao@qdio.ac.cn)
英文摘要As a tectonic block of the Qinling Orogenic Belt, Central China, the South Qinling Orogen is generally believed to have had a tight affinity with the Yangtze Block during the Precambrian. Knowledge on the South Qinling Orogen is important to constrain the tectonic evolution of the northern margin of the Yangtze Block basement. Previous studies mainly focused on the east segment of the South Qinling Orogen. This paper presented petrological, geochronological, and geochemical studies on the amphibolite-facies rocks newly discovered in the middle section of the South Qinling Orogen. Geochemical studies indicate that the protolith of these amphibolites is calc-alkaline island arc basalt, which was formed during the reconstruction of the Paleo-Middle Archean crust on the northern margin of the Yangtze Block 2,362 +/- 100 Ma ago (equivalent to metamorphic rocks of the Yudongzi group). Later, these arc basalts experienced amphibolite-facies metamorphism at 1,500-1,800 Ma, which is consistent with the metamorphism identified in the Yangtze Block, confirming the association of the South Qinling Orogen with the Yangtze Block basement. Subsequently, these amphibolite-facies rocks further experienced three stages of metamorphism at c. 800 Ma, 440 Ma, and 200 Ma in the context of the northward subduction of the Yangtze Block.
WOS关键词U-PB GEOCHRONOLOGY ; TECTONIC EVOLUTION ; TRACE-ELEMENT ; HF ISOTOPES ; YANGTZE CRATON ; DISCRIMINANT FUNCTION ; METAMORPHIC ROCKS ; DETRITAL ZIRCONS ; BELT CONSTRAINTS ; NORTHERN MARGIN
资助项目Special funds of Shandong Province to the Qingdao National Laboratory for Marine Science and Technology[2022QNLM050201] ; National Natural Science Foundation of China[41776069] ; special project of strategic leading science and technology of Chinese Academy of Sciences[XDB42020302] ; Natural Science Foundation of Shandong Province (NSFSP)[ZR2020QD044]
WOS研究方向Geology
语种英语
出版者FRONTIERS MEDIA SA
WOS记录号WOS:000922693900001
源URL[http://ir.qdio.ac.cn/handle/337002/183431]  
专题海洋研究所_海洋地质与环境重点实验室
通讯作者Lin, Jinyan; Xiao, Yuanyuan
作者单位1.Yanchang Oilfield Explorat & Dev Technol Res Ctr, Yanan, Peoples R China
2.Shandong Univ Sci & Technol, Coll Ocean Sci & Engn, Qingdao, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
4.Northwest Univ, Dept Geol, Xian, Peoples R China
5.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China
6.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Kong, Juanjuan,Wang, Lei,Yao, Yongxiang,et al. Petrology and geochemical characteristics of amphibolite facies rocks in Xunyangba area, South Qinling Orogen, Central China[J]. FRONTIERS IN EARTH SCIENCE,2023,10:23.
APA Kong, Juanjuan,Wang, Lei,Yao, Yongxiang,Lin, Jinyan,Xiao, Yuanyuan,&Yang, Yiting.(2023).Petrology and geochemical characteristics of amphibolite facies rocks in Xunyangba area, South Qinling Orogen, Central China.FRONTIERS IN EARTH SCIENCE,10,23.
MLA Kong, Juanjuan,et al."Petrology and geochemical characteristics of amphibolite facies rocks in Xunyangba area, South Qinling Orogen, Central China".FRONTIERS IN EARTH SCIENCE 10(2023):23.

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来源：海洋研究所

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