Zircon U-Pb ages and tectonic implications of 'Early paleozoic' granitoids at Yanbian, Jilin Province, northeast china

	Zircon U-Pb ages and tectonic implications of 'Early paleozoic' granitoids at Yanbian, Jilin Province, northeast china
	Zhang, YB ; Wu, FY ; Wilde, SA ; Zhai, MG ; Lu, XP ; Sun, DY
刊名	ISLAND ARC
	2004-12-01
卷号	13 期号:4 页码:484-505
关键词	granitoids northeast China U-Pb geochronology Yanbian zircon
ISSN号	1038-4871
文献子类	Article
英文摘要	The Yanbian area is located in the eastern part of the Central Asian Orogenic Belt (CAOB) of China and is characterized by widespread Phanerozoic granitic intrusions. It was previously thought that the Yanbian granitoids were mainly emplaced in the Early Paleozoic (so-called 'Caledonian' granitoids), extending east-west along the northern margin of the North China craton. However, few of them have been precisely dated; therefore, five typical 'Caledonian' granitic intrusions (the Huangniling, Dakai, Mengshan, Gaoling and Bailiping batholiths) were selected for U-Pb zircon isotopic study. New-age data show that emplacement of these granitoids extended from the Late Paleozoic to Late Mesozoic (285-116 Ma). This indicates that no 'Caledonian' granitic belt exists along the northern margin of the North China craton. The granitoids can be subdivided into four episodes based on our new data: Early Permian (285 +/- 9 Ma), Early Triassic (249-245 Ma), Jurassic (192-168 Ma) and Cretaceous (119-116 Ma). The 285 +/- 9 Ma tonalite was most likely related to subduction of the Paleo-Asian Oceanic Plate beneath the North China craton, followed by Triassic (249-245 Ma) syn-collisional monzogranites, representing the collision of the CAOB orogenic collage with the North China craton and final closure of the Paleo-Asian Ocean. The Jurassic granitoids resulted from subduction of the Paleo-Pacific plate and subsequent collision of the Jiamusi-Khanka Massif with the existing continent, assembled in the Triassic. The Early Cretaceous granitoids formed in an extensional setting along the eastern Asian continental margin.
WOS关键词	CONTINENTAL GROWTH ; JIAMUSI MASSIF ; CRUSTAL GROWTH ; ABLATION ; GEOCHRONOLOGY ; PETROGENESIS ; ICPMS ; BELT
WOS研究方向	Geology
语种	英语
出版者	BLACKWELL PUBLISHING ASIA
WOS记录号	WOS:000225355100002
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/79275]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhang, YB
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Curtin Univ Technol, Dept Appl Geol, Perth, WA 6845, Australia 3.Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China
推荐引用方式 GB/T 7714	Zhang, YB,Wu, FY,Wilde, SA,et al. Zircon U-Pb ages and tectonic implications of 'Early paleozoic' granitoids at Yanbian, Jilin Province, northeast china[J]. ISLAND ARC,2004,13(4):484-505.
APA	Zhang, YB,Wu, FY,Wilde, SA,Zhai, MG,Lu, XP,&Sun, DY.(2004).Zircon U-Pb ages and tectonic implications of 'Early paleozoic' granitoids at Yanbian, Jilin Province, northeast china.ISLAND ARC,13(4),484-505.
MLA	Zhang, YB,et al."Zircon U-Pb ages and tectonic implications of 'Early paleozoic' granitoids at Yanbian, Jilin Province, northeast china".ISLAND ARC 13.4(2004):484-505.