SHRIMP zircon dating of meta-sedimentary rock from the Qinling Group in the north of Xixia, North Qinling Orogenic Belt Constraints on complex histories of source region and timing of deposition and metamorphism

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	SHRIMP zircon dating of meta-sedimentary rock from the Qinling Group in the north of Xixia, North Qinling Orogenic Belt Constraints on complex histories of source region and timing of deposition and metamorphism
	Wan, YS (Wan YuSheng); Liu, DY (Liu DunYi); Dong, CY (Dong ChunYan); Yin, XY (Yin XiaoYan)
刊名	ACTA PETROLOGICA SINICA
	2011
卷号	27 期号:4 页码:1172-1178
关键词	Detrital zircon SHRIMP dating Metamorphic age Qinling Group Qingling Orogen Belt
ISSN号	1000-0569
英文摘要	This paper carried out a geochronological research on zircons from a meta-sedimentary rock (biotite plagioclase gneiss) sample in the north of Xixia, a typical distribution area of the Qinling Group in the Qinling Orogen Belt. The zircons show complex core-rim structures in CL images. A total of 56 analyses on forty-seven zircons have ages ranging from >3. 0Ga to similar to 400Ma. Combined with early data, some conclusions can be drawn as follows. (1) The protolith of the meta-sedimentary rock of the Qinling Group was formed after Paleoproterozoic with some probably being Late Mesoproterozoic or even later, the original Qinling Group may be made up of rocks of different ages; (2) the zircon features show that the studied rock underwent metamorphism from upper amphibolite-granulite facies in early stage to amphibolite facies in late stage during the Early Paleozoic; (3) the source region providing detritus for the Qinling sediments shows a long and complex evolution history, there might be Archean basement in Qinling and adjacent areas.
学科主题	地质年代学
WOS关键词	GEOCHRONOLOGY
WOS研究方向	Geology
语种	中文
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000290080200021
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39367]
专题	中国地质调查局
作者单位	Chinese Acad Geol Sci, Inst Geol, Beijing SHRIMP Ctr, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	Wan, YS ,Liu, DY ,Dong, CY ,et al. SHRIMP zircon dating of meta-sedimentary rock from the Qinling Group in the north of Xixia, North Qinling Orogenic Belt Constraints on complex histories of source region and timing of deposition and metamorphism[J]. ACTA PETROLOGICA SINICA,2011,27(4):1172-1178.
APA	Wan, YS ,Liu, DY ,Dong, CY ,&Yin, XY .(2011).SHRIMP zircon dating of meta-sedimentary rock from the Qinling Group in the north of Xixia, North Qinling Orogenic Belt Constraints on complex histories of source region and timing of deposition and metamorphism.ACTA PETROLOGICA SINICA,27(4),1172-1178.
MLA	Wan, YS ,et al."SHRIMP zircon dating of meta-sedimentary rock from the Qinling Group in the north of Xixia, North Qinling Orogenic Belt Constraints on complex histories of source region and timing of deposition and metamorphism".ACTA PETROLOGICA SINICA 27.4(2011):1172-1178.