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

doi:10.3389/feart.2022.1001795

IOCAS-IR > 海洋地质与环境重点实验室

	Petrology and geochemical characteristics of amphibolite facies rocks in Xunyangba area, South Qinling Orogen, Central China
	Kong, Juanjuan 1,2; Wang, Lei 3,4; Yao, Yongxiang 5; Lin, Jinyan 3; Xiao, Yuanyuan 2,5,6; Yang, Yiting 1
	2023-01-12
发表期刊	FRONTIERS IN EARTH SCIENCE
卷号	10 页码:23
通讯作者	Lin, Jinyan(geo-s209@163.com) ; Xiao, Yuanyuan(yuanyuan.xiao@qdio.ac.cn)
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.
关键词	amphibolite zircon U-Pb age geochemical characteristics Xunyangba area Southern Qinling Orogen
DOI	10.3389/feart.2022.1001795
收录类别	SCI
语种	英语
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
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000922693900001
出版者	FRONTIERS MEDIA SA
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
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/183432
专题	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.Shandong Univ Sci & Technol, Coll Ocean Sci & Engn, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 3.Northwest Univ, Dept Geol, Xian, Peoples R China 4.Yanchang Oilfield Explorat & Dev Technol Res Ctr, Yanan, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao, Peoples R China 6.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
通讯作者单位	中国科学院海洋研究所
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.