In-situ U-Pb, Hf and Re-Os isotopic analyses of the Xiangshan Ni-Cu-Co deposit in Eastern Tianshan (Xinjiang), Central Asia Orogenic Belt Constraints on the timing and genesis of the mineralization

doi:10.1016/j.lithos.2010.09.019

	In-situ U-Pb, Hf and Re-Os isotopic analyses of the Xiangshan Ni-Cu-Co deposit in Eastern Tianshan (Xinjiang), Central Asia Orogenic Belt Constraints on the timing and genesis of the mineralization
	Han, Chunming 1; Xiao, Wenjiao 1; Zhao, Guochun 2; Ao, Songjian 1; Zhang, Jien 1; Qu, Wenjun ; Du, Andao 3
刊名	LITHOS
	2010-12-01
卷号	120 期号:3-4 页码:547-562
关键词	Xiangshan Intrusion U-pb Geochronology Zircon Re-os Isotopic Data
ISSN号	0024-4937
DOI	10.1016/j.lithos.2010.09.019
文献子类	Article
英文摘要	The timing and genesis of the major Ni-Cu-Co sulfide deposit in the Xiangshan intrusion have been studied based on newly obtained in-situ U-Pb Hf and Re-Os isotopic analyses The SIMS U-Pb zircon ages of the gabbro hosting the Ni-Cu-Co sulfide deposit indicate that the Xiangshan intrusion was emplaced at 279 6 +/- 11 Ma (95% confidence level MSWD = 1 30 n = 15) On the basis of combined geological and geochronological evidence we suggest that the Xiangshan and other adjacent Ni-Cu deposits were formed in the same period Sulphides have low common Os concentrations and high Re/Os ratios similar to sulphide ores from the Duluth Sally Malay and Voisey Bay complexes The Re-Os isotopic data from the disseminated and massive ores from the Xiangshan intrusion do not form a single isochron as they have different initial Os ratios The Hf and Os isotopic data suggest that the Xiangshan intrusion and associated Ni-Cu-Co mineralization were derived from crustally contaminated mantle melts The geochemical data show a tholentic affinity and a strong suprasubduction zone signature with negative Nb Sr and Ti anomalies similar to N-MORB and E-MORB We suggest that the mafic-ultramafic rocks and associated Ni-Cu mineralization of the Eastern Tianshan orogen formed in an Alaska type subduction zone-arc setting Some diagnostic features of ridge-trench interaction are present in the Chinese East Tianshan orogen (e g granites adakites high-Mg andesites near trench magmatism Alaskan-type mafic-ultramafic complexes high-temperature metamorphic belts that prograde rapidly from low-grade belts and orogenic gold deposits) The above distinctive rock groups are probably related to the same thermal event ridge subduction as in the Cenozoic orogen of Alaska We suggest that ridge subduction is the most plausible mechanism to provide the necessary heat Ridge subduction provides an important promising model for understanding many aspects of the evolution of the Chinese Eastern Tianshan orogen and by Inference throughout much of Central Asia (C) 2010 Elsevier B V All rights reserved
WOS关键词	MAFIC-ULTRAMAFIC INTRUSIONS ; PHANEROZOIC CRUSTAL GROWTH ; CHINESE TIEN-SHAN ; NW CHINA ; NORTHWESTERN CHINA ; NORTHERN XINJIANG ; COLLISIONAL TECTONICS ; RIDGE SUBDUCTION ; COPPER-DEPOSITS ; MANTLE SOURCE
WOS研究方向	Geochemistry & Geophysics ; Mineralogy
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000285706600019
资助机构	Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese State 973 Project(2007CB411307) ; Chinese State 973 Project(2007CB411307) ; Chinese State 973 Project(2007CB411307) ; Chinese State 973 Project(2007CB411307) ; State 305 Project(2007BA25B04) ; State 305 Project(2007BA25B04) ; State 305 Project(2007BA25B04) ; State 305 Project(2007BA25B04) ; NSFC(40725009 ; NSFC(40725009 ; NSFC(40725009 ; NSFC(40725009 ; Hong Kong RGC(7066/07P) ; Hong Kong RGC(7066/07P) ; Hong Kong RGC(7066/07P) ; Hong Kong RGC(7066/07P) ; 40421303 ; 40421303 ; 40421303 ; 40421303 ; 40973036 ; 40973036 ; 40973036 ; 40973036 ; 40572043) ; 40572043) ; 40572043) ; 40572043) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese State 973 Project(2007CB411307) ; Chinese State 973 Project(2007CB411307) ; Chinese State 973 Project(2007CB411307) ; Chinese State 973 Project(2007CB411307) ; State 305 Project(2007BA25B04) ; State 305 Project(2007BA25B04) ; State 305 Project(2007BA25B04) ; State 305 Project(2007BA25B04) ; NSFC(40725009 ; NSFC(40725009 ; NSFC(40725009 ; NSFC(40725009 ; Hong Kong RGC(7066/07P) ; Hong Kong RGC(7066/07P) ; Hong Kong RGC(7066/07P) ; Hong Kong RGC(7066/07P) ; 40421303 ; 40421303 ; 40421303 ; 40421303 ; 40973036 ; 40973036 ; 40973036 ; 40973036 ; 40572043) ; 40572043) ; 40572043) ; 40572043) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese State 973 Project(2007CB411307) ; Chinese State 973 Project(2007CB411307) ; Chinese State 973 Project(2007CB411307) ; Chinese State 973 Project(2007CB411307) ; State 305 Project(2007BA25B04) ; State 305 Project(2007BA25B04) ; State 305 Project(2007BA25B04) ; State 305 Project(2007BA25B04) ; NSFC(40725009 ; NSFC(40725009 ; NSFC(40725009 ; NSFC(40725009 ; Hong Kong RGC(7066/07P) ; Hong Kong RGC(7066/07P) ; Hong Kong RGC(7066/07P) ; Hong Kong RGC(7066/07P) ; 40421303 ; 40421303 ; 40421303 ; 40421303 ; 40973036 ; 40973036 ; 40973036 ; 40973036 ; 40572043) ; 40572043) ; 40572043) ; 40572043) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese State 973 Project(2007CB411307) ; Chinese State 973 Project(2007CB411307) ; Chinese State 973 Project(2007CB411307) ; Chinese State 973 Project(2007CB411307) ; State 305 Project(2007BA25B04) ; State 305 Project(2007BA25B04) ; State 305 Project(2007BA25B04) ; State 305 Project(2007BA25B04) ; NSFC(40725009 ; NSFC(40725009 ; NSFC(40725009 ; NSFC(40725009 ; Hong Kong RGC(7066/07P) ; Hong Kong RGC(7066/07P) ; Hong Kong RGC(7066/07P) ; Hong Kong RGC(7066/07P) ; 40421303 ; 40421303 ; 40421303 ; 40421303 ; 40973036 ; 40973036 ; 40973036 ; 40973036 ; 40572043) ; 40572043) ; 40572043) ; 40572043)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/72648]
专题	中国科学院地质与地球物理研究所
通讯作者	Han, Chunming
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China 3.Natl Res Ctr Geoanal, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	Han, Chunming,Xiao, Wenjiao,Zhao, Guochun,et al. In-situ U-Pb, Hf and Re-Os isotopic analyses of the Xiangshan Ni-Cu-Co deposit in Eastern Tianshan (Xinjiang), Central Asia Orogenic Belt Constraints on the timing and genesis of the mineralization[J]. LITHOS,2010,120(3-4):547-562.
APA	Han, Chunming.,Xiao, Wenjiao.,Zhao, Guochun.,Ao, Songjian.,Zhang, Jien.,...&Du, Andao.(2010).In-situ U-Pb, Hf and Re-Os isotopic analyses of the Xiangshan Ni-Cu-Co deposit in Eastern Tianshan (Xinjiang), Central Asia Orogenic Belt Constraints on the timing and genesis of the mineralization.LITHOS,120(3-4),547-562.
MLA	Han, Chunming,et al."In-situ U-Pb, Hf and Re-Os isotopic analyses of the Xiangshan Ni-Cu-Co deposit in Eastern Tianshan (Xinjiang), Central Asia Orogenic Belt Constraints on the timing and genesis of the mineralization".LITHOS 120.3-4(2010):547-562.