Rhenium-osmium isotope and platinum-group elements in the Xinjie layered intrusion, SW China: Implications for source mantle composition, mantle evolution, PGE fractionation and mineralization

doi:10.1016/j.gca.2011.01.009

	Rhenium-osmium isotope and platinum-group elements in the Xinjie layered intrusion, SW China: Implications for source mantle composition, mantle evolution, PGE fractionation and mineralization
	Zhong, Hong 1; Qi, Liang 1; Hu, Rui-Zhong 1; Zhou, Mei-Fu 2; Gou, Ti-Zhong 1; Zhu, Wei-Guang 1; Liu, Bing-Guang 3; Chu, Zhu-Yin 3
刊名	GEOCHIMICA ET COSMOCHIMICA ACTA
	2011-03-15
卷号	75 期号:6 页码:1621-1641
ISSN号	0016-7037
DOI	10.1016/j.gca.2011.01.009
文献子类	Article
英文摘要	The Xinjie mafic-ultramafic layered intrusion in the Emeishan large igneous province (ELIP) hosts Cu-Ni platinum group element (PGE) sulfide ore layers within the lower part and Fe-Ti-V oxide-bearing horizons within the middle part. The major magmatic Cu-Ni-PGE sulfide ores and spatially associated cumulate rocks are examined for their PGE contents and Re Os isotopic systematics. The samples yielded a Re-Os isochron with an age of 262 +/- 27 Ma and an initial (187)Os/(188)Os of 0.12460 +/- 0.00011 (gamma(Os)(t) = -0.5 +/- 0.1). The age is in good agreement with the previously reported U-Pb zircon age, indicating that the Re Os system remained closed for most samples since the intrusion emplacement. They have near-chondritic gamma(Os)(t) values ranging from -0.7 to -0.2, similar to those of the Lijiang picrites and Song Da komatiites. Exceptionally, two samples from the roof zone and one from upper sequence exhibit radiogenic gamma(Os)(t) values (+0.6 to +8.6), showing minor contamination by the overlying Emeishan basalts.
WOS关键词	LARGE IGNEOUS PROVINCE ; RE-OS ISOTOPE ; PLUME-LITHOSPHERE INTERACTION ; EMEISHAN FLOOD BASALTS ; PAN-XI AREA ; MAGMATIC SULFIDE DEPOSITS ; CARIUS TUBE DIGESTION ; TI-V OXIDE ; BUSHVELD COMPLEX ; ULTRAMAFIC INTRUSION
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000287682500013
资助机构	National Basic Research Program of China(2007CB411401) ; National Basic Research Program of China(2007CB411401) ; "CAS Hundred Talents" Foundation of the Chinese Academy of Sciences ; "CAS Hundred Talents" Foundation of the Chinese Academy of Sciences ; National Natural Science Foundation of China(40473025 ; National Natural Science Foundation of China(40473025 ; 40873028) ; 40873028) ; National Basic Research Program of China(2007CB411401) ; National Basic Research Program of China(2007CB411401) ; "CAS Hundred Talents" Foundation of the Chinese Academy of Sciences ; "CAS Hundred Talents" Foundation of the Chinese Academy of Sciences ; National Natural Science Foundation of China(40473025 ; National Natural Science Foundation of China(40473025 ; 40873028) ; 40873028) ; National Basic Research Program of China(2007CB411401) ; National Basic Research Program of China(2007CB411401) ; "CAS Hundred Talents" Foundation of the Chinese Academy of Sciences ; "CAS Hundred Talents" Foundation of the Chinese Academy of Sciences ; National Natural Science Foundation of China(40473025 ; National Natural Science Foundation of China(40473025 ; 40873028) ; 40873028) ; National Basic Research Program of China(2007CB411401) ; National Basic Research Program of China(2007CB411401) ; "CAS Hundred Talents" Foundation of the Chinese Academy of Sciences ; "CAS Hundred Talents" Foundation of the Chinese Academy of Sciences ; National Natural Science Foundation of China(40473025 ; National Natural Science Foundation of China(40473025 ; 40873028) ; 40873028)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/73934]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhong, Hong
作者单位	1.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550002, Peoples R China 2.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Zhong, Hong,Qi, Liang,Hu, Rui-Zhong,et al. Rhenium-osmium isotope and platinum-group elements in the Xinjie layered intrusion, SW China: Implications for source mantle composition, mantle evolution, PGE fractionation and mineralization[J]. GEOCHIMICA ET COSMOCHIMICA ACTA,2011,75(6):1621-1641.
APA	Zhong, Hong.,Qi, Liang.,Hu, Rui-Zhong.,Zhou, Mei-Fu.,Gou, Ti-Zhong.,...&Chu, Zhu-Yin.(2011).Rhenium-osmium isotope and platinum-group elements in the Xinjie layered intrusion, SW China: Implications for source mantle composition, mantle evolution, PGE fractionation and mineralization.GEOCHIMICA ET COSMOCHIMICA ACTA,75(6),1621-1641.
MLA	Zhong, Hong,et al."Rhenium-osmium isotope and platinum-group elements in the Xinjie layered intrusion, SW China: Implications for source mantle composition, mantle evolution, PGE fractionation and mineralization".GEOCHIMICA ET COSMOCHIMICA ACTA 75.6(2011):1621-1641.