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	Relationship between the cenozoic tectono-magmatic events in xingzi area, lushan and the multiphase activities of ganjiang fault zone
	Li ZhongLan; Cui XueJun; Wang Ran; Xia Bin; Xu LiFeng; Yang WeiRan; Zeng ZuoXun; Jian Ping
刊名	Acta petrologica sinica
	2007-04-01
卷号	23期号:4页码:839-848
关键词	Granite Structural geochronology Ganjiang fault Xingzi area Lushan
ISSN号	1000-0569
通讯作者	Li zhonglan(lizhl@gig.ac.cn)
英文摘要	Gangjiang fault zone is the major factor for tectonic control in southeast china. lushan (xingzi) area is located in the northern segment of the ganjiang fault system and was subject to multiphase tectono-magmatic events of the fault. detailed studies in terms of field and structural geology and isotopic geochemistry and geochronology indicate that the haihui granitoid bodies derived from cenozoic magmatic activity record the major structural features and represent the age of the ganjiang fault zone (north segment) in xingzi area, lushan. the results allow us to characterize the north segment of ganjiang fault zone in xingzi area, lushan, to divide and to date its tectono-magmatic evolutionary stages, and to understand their implications for tectonic evolutionary history of se china. the ruichang-de'an drag are structure and lushan huge "lens" structure, held between the two secondary faults of shahe-de'an fault to the west and hukou-de'an fault to the east, suggest a sinistral translation of the ganjiang fault, which was found to be coincident with the sinistral translation represented by the ductile deformation of the haihui granitoid bodies and the eastern margin of the lushan lens, as both haihui granitoid bodies and the eastern margin of the lushan lens and they both are actually resulted from this same sinistral translation of the ganjiang fault during the same stage; the z-shaped quartz veins structure and the fracture cleavages of the quartz veins as observed in liuxingshan suggest that the fault has undergone a transformation from post-sinistral translation-style extension to dextral translation. the haihui magmatic bodies are simply products of the formation process of lushan metamorphic core complex under the transpression regime, which was derived from the sinistral translation (j(3)-k(1)) of ganjiang fault. shrimp zircon u-ph dating for the granite yields a weighted mean age of 127.2 +/- 1.2ma (2 sigma, mswd=1.17) which is regarded as the age for the lushan metamorphic core complex. meanwhile, rb-sr dating for the z-shaped quartz veins produces an 89 +/- 7.1 ma (1 sigma) age for the extension event (k(2)). finally, it can be concluded that the structure stage division and geochronology of the xingzi massif can provide a new constraint on the establishment of the spatial and temporal framework of ganjiang fault (northern segment), and the authors believe that the results would be significant for understanding the tectonic history and metallogenesis in se china.
WOS关键词	CHINA
WOS研究方向	Geology
WOS类目	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000246957000015
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2383059
专题	中国科学院大学
通讯作者	Li ZhongLan
作者单位	1.Chinese Acad Sci, CAS Key Lab Marginal Sea Geol, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.China Univ Geosci, Wuhan 430074, Peoples R China 4.Chinese Acad Geol Sci, Beijing SHRIMP Ctr, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	Li ZhongLan,Cui XueJun,Wang Ran,et al. Relationship between the cenozoic tectono-magmatic events in xingzi area, lushan and the multiphase activities of ganjiang fault zone[J]. Acta petrologica sinica,2007,23(4):839-848.
APA	Li ZhongLan.,Cui XueJun.,Wang Ran.,Xia Bin.,Xu LiFeng.,...&Jian Ping.(2007).Relationship between the cenozoic tectono-magmatic events in xingzi area, lushan and the multiphase activities of ganjiang fault zone.Acta petrologica sinica,23(4),839-848.
MLA	Li ZhongLan,et al."Relationship between the cenozoic tectono-magmatic events in xingzi area, lushan and the multiphase activities of ganjiang fault zone".Acta petrologica sinica 23.4(2007):839-848.

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