Age of Yingfeng rapakivi granite pluton on the north flank of Qaidam and;its geological significance

doi:10.1360/02yd0472

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	Age of Yingfeng rapakivi granite pluton on the north flank of Qaidam and;its geological significance
	Xiao, QH 8; Lu, XX ; Wang, F ; Sun, YG ; Wei, YD ; Xing, YY
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2004
卷号	47 期号:4 页码:357-365
关键词	rapakivi U-Pb dating Ar-Ar dating Kunlun-Qinling orogenic belt
ISSN号	1006-9313
DOI	10.1360/02yd0472
英文摘要	The Yingfeng rapakivi granite on the north flank of Qaidam is a newly discovered Proterozoic rapakivi pluton in China, which was found after the discovery of Shachang rapakivi in Miyun County, Beijing and Kuandian rapakivi in Jilin Province. Yingfeng rapakivi pluton is exposed on the north side of the suture belt between Qinling-Kunlun orogenic belt and North China plate. U-Pb zircon isotopic dating and Ar-Ar isotopic dating of both hornblende and K-feldspar from the Yingfeng rapakivi granite have been conducted. The results show that the age of (1776 +/- 33)Ma at the upper intercept in Concorde diagram represents the age of formation of the pluton, whereas the age of (526 +/- 281) Ma at the lower intercept and Ar-Ar mineral dating of hornblende and K-feldspar correspond to the age of a later event affecting the pluton, suggesting that Yingfeng pluton has ever been affected by strong regional Caledonian-Hercynian tectonic movement after its formation. The discovery of middle Proterozoic Yingfeng rapakivi granite provides a petrologic evidence for the timing of cratonization of both the continental crust basement in western China and the basement of the North China plate and for a rifting event taking place in the mid-Proterozoic, suggesting that an amalgamation of ancient China continents had ever happened during the "Lu liang Movement" between the early Proterozoic and the mid-Proterozoic.
学科主题	火成岩岩石学
WOS关键词	CHINA ; SUPERCONTINENT
WOS研究方向	Geology
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000222497600007
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/37646]
专题	中国地质调查局武汉地质调查中心
作者单位	1.China Geol Survey, Div Granite Geol, Yichang 443003, Peoples R China. 2.Minist Land & Resources, Informat Ctr, Beijing 100812, Peoples R China. 3.Geol Survey Henan Province, Zhengzhou 450053, Peoples R China. 4.Inst Geol Res Henan Province, Zhengzhou 450053, Peoples R China. 5.China Seismol Bur, Inst Geol, Beijing 100029, Peoples R China. 6.Geol Survey Inst Qinghai Province, Xining 810032, Peoples R China. 7.China Univ Geosci, Wuhan 430074, Peoples R China. 8.中国地质调查局武汉地质调查中心
推荐引用方式 GB/T 7714	Xiao, QH,Lu, XX,Wang, F,et al. Age of Yingfeng rapakivi granite pluton on the north flank of Qaidam and;its geological significance[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2004,47(4):357-365.
APA	Xiao, QH,Lu, XX,Wang, F,Sun, YG,Wei, YD,&Xing, YY.(2004).Age of Yingfeng rapakivi granite pluton on the north flank of Qaidam and;its geological significance.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,47(4),357-365.
MLA	Xiao, QH,et al."Age of Yingfeng rapakivi granite pluton on the north flank of Qaidam and;its geological significance".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 47.4(2004):357-365.