Zircon U-Pb constraints on the origin of UHP meta-supracrustal rocks in the Southern Sulu orogen, eastern China

CORC > 中国地质调查局 > 中国地质调查局

	Zircon U-Pb constraints on the origin of UHP meta-supracrustal rocks in the Southern Sulu orogen, eastern China
	Yu, F (Yu, Fei); Zhang, ZM (Zhang, Zeming); Wang, W (Wang, Wei); Liu, F (Liu, Feng); Dong, X (Dong, Xin); Liou, JG (Liou, J. G.)
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2011
卷号	42 期号:4 特刊 SI 页码:740-751
关键词	Supracrustal rock Geochronology Protolith origin UHP metamorphism Sulu orogen
ISSN号	1367-9120
英文摘要	Most zircons in marble and quartzite, typical meta-sedimentary rock from southern Sulu orogenic belt, have a core-rim structure, including an inherited detrital core and a metamorphic overgrowth rim. A few zircons are completely metamorphic. Most detrital cores have relatively high REE contents and Th/U ratios and yield highly variable (206)Pb/(238)U ages ranging from 2828 to 211 Ma, with major age populations at similar to 1800 Ma and similar to 800 Ma for quartzites and similar to 1300 Ma for marbles. In contrast, the metamorphic zircon rims have relatively low REE contents and low Th/U ratios, and yield consistent Triassic metamorphic ages with a weighted mean age of 231 Ma. These results indicate that the marble and quartzite, together with eclogite and orthogneiss from the southern Sulu orogenic belt, have been subjected to a coeval Triassic UHP metamorphism. The protoliths of the quartzites may have been formed in the Neoproterozoic, whereas the protoliths of the marble are probably in the Mesoproterozoic. The source regions of the UHP supracrustal rocks underwent Neoproterozoic to Paloproterozoic tectonicthermal events, indicating that the protoliths of the Sulu UHP rocks were derived from the Yangtze craton, instead of the North China craton. (C) 2011 Elsevier Ltd. All rights reserved.
学科主题	变质岩岩石学
WOS关键词	PRESSURE METAMORPHIC ROCKS ; LA-ICP-MS ; COESITE-BEARING ZIRCON ; ULTRAHIGH-PRESSURE ; NORTH CHINA ; TECTONIC EVOLUTION ; TRACE-ELEMENT ; YANGTZE BLOCK ; ISOTOPIC CONSTRAINTS ; CONTINENTAL-CRUST
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000294984200015
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39348]
专题	中国地质调查局
作者单位	Stanford Univ, Dept Geol & Environm Sci, Stanford, CA 94305 USA
推荐引用方式 GB/T 7714	Yu, F ,Zhang, ZM ,Wang, W ,et al. Zircon U-Pb constraints on the origin of UHP meta-supracrustal rocks in the Southern Sulu orogen, eastern China[J]. JOURNAL OF ASIAN EARTH SCIENCES,2011,42(4 特刊 SI):740-751.
APA	Yu, F ,Zhang, ZM ,Wang, W ,Liu, F ,Dong, X ,&Liou, JG .(2011).Zircon U-Pb constraints on the origin of UHP meta-supracrustal rocks in the Southern Sulu orogen, eastern China.JOURNAL OF ASIAN EARTH SCIENCES,42(4 特刊 SI),740-751.
MLA	Yu, F ,et al."Zircon U-Pb constraints on the origin of UHP meta-supracrustal rocks in the Southern Sulu orogen, eastern China".JOURNAL OF ASIAN EARTH SCIENCES 42.4 特刊 SI(2011):740-751.