Zircon U-Pb chronology, geochemistry and their petrogenesis of Early;Paleoproterozoic granitoid gneisses in Ulashan area, North China Craton

	Zircon U-Pb chronology, geochemistry and their petrogenesis of Early;Paleoproterozoic granitoid gneisses in Ulashan area, North China Craton
	Liu JianHui 5; Liu FuLai ; Ding ZhengJiang 1,2; Chen JunQiang 3; Liu PingHua ; Shi JianRong ; Cai Jia ; Wang Fang
刊名	ACTA PETROLOGICA SINICA
	2013
卷号	29 期号:2 页码:485-500
关键词	Continent-crustal growth Granitoid gneisses Ulashan Khondalite belt North China Craton
ISSN号	1000-0569
英文摘要	Early Paleoproterozoic granitoid gneisses are widely distributed in Ulashan area in the khondalite belt, North China Craton, they record continent-crustal growth and tectonic evolution in the study area. The LA-ICP-MS U-Pb analyses of zircons from four representative granitoid gneiss samples collected from the study area unraveled that they formed at similar to 2.45Ga, and experienced polyphase metamorphic events at similar to 2.45Ga and 1.89 similar to 1.95Ga. The geochemical analyses of the Early Paleoproterozoic granitoid gneisses show they are characterized by high Sigma REEs contents (E BEE = 301 x 10(-6) similar to 909 x 10(-6)), enrichment in light BEE and depletion in heavy REE with (La/Yb)(N) ratios of 13 similar to 56. They have weakly positive and/or negative Eu anomalies (Eu/Eu* = 0.76 similar to 1.81, average 1. 18), high Sr content (495 x 10(-6) similar to 895 x 10(-6)) and low Yb content (0.5 x 10(-6) similar to 2.61 x 10(-6)). Their primitive mantle normalized trace element spider diagrams show they are strongly depleted in high field-strength element Nb, Ta, Th, U, and Ti, and are enrich in large ion lithophile element Ba, K, Rb and Sr. They are magnesian, high-K calc-alkalic and metalumous-weakly peraluminous, indicating that they originated from partial melting of basaltic lower crust under island arc on margin of active continent. It is suggested that there existed arc-continent accretionary process during Early Paleoproterozoic, and experienced tectonic evolutional history of arc-continent accretion, continent-continent collision and extensions post-orogen in Ulashan area.
学科主题	变质岩岩石学
WOS关键词	LA-ICP-MS ; ULTRAHIGH-TEMPERATURE METAMORPHISM ; HIGH-PRESSURE GRANULITES ; KHONDALITE BELT ; WESTERN BLOCK ; INNER-MONGOLIA ; KEY ISSUES ; COMPLEX ; CONSTRAINS ; DETRITAL ZIRCONS ; DAQINGSHAN AREA
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000317531300010
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40066]
专题	中国地质科学院地质研究所
作者单位	1.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China. 2.Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China. 3.Explorat Inst Geol & Mineral Resources, Yantai 264000, Peoples R China. 4.Tianjin Inst Geol & Mineral Resources, Tianjin 300170, Peoples R China. 5.中国地质科学院地质研究所
推荐引用方式 GB/T 7714	Liu JianHui,Liu FuLai,Ding ZhengJiang,et al. Zircon U-Pb chronology, geochemistry and their petrogenesis of Early;Paleoproterozoic granitoid gneisses in Ulashan area, North China Craton[J]. ACTA PETROLOGICA SINICA,2013,29(2):485-500.
APA	Liu JianHui.,Liu FuLai.,Ding ZhengJiang.,Chen JunQiang.,Liu PingHua.,...&Wang Fang.(2013).Zircon U-Pb chronology, geochemistry and their petrogenesis of Early;Paleoproterozoic granitoid gneisses in Ulashan area, North China Craton.ACTA PETROLOGICA SINICA,29(2),485-500.
MLA	Liu JianHui,et al."Zircon U-Pb chronology, geochemistry and their petrogenesis of Early;Paleoproterozoic granitoid gneisses in Ulashan area, North China Craton".ACTA PETROLOGICA SINICA 29.2(2013):485-500.