典型文献
Rhenium-Osmium Isotope Constraints on the Origin of the Tianyu Cu-Ni Deposit in the East Tianshan Orogenic Belt, Xinjiang, NW China
文献摘要：
The Tianyu Cu-Ni sulfide deposit occurs in the north margin of the Central Tianshan Arc in East Tianshan orogenic belt, Xinjiang, NW China. The intrusions consist of gabbro, peridotite, and olivine pyroxenite. The peridotite and pyroxenite are the main host rock for the Cu-Ni ores. Rhenium and osmium isotopic analyses of Ni- and Cu-bearing sulfide minerals from the deposit have been used to determine the source of osmium, and by inference, the sources of ore metals. Sulfide ore samples have Os and Re concentrations varying in the ranges 1.85 to 4.58 ppb and 93.56 to 146.00 ppb, respectively. An initial 187Os/188Os ratio ranges from 0.86 to 1.23 for the ores and the γOs values from 592 to 2227. Osmium isotopic data suggest that the Tianyu intrusion and associated Cu-Ni mineralization has derived from crustal-contaminated mantle melts. The intrusions early show island-arc geochemical signatures, which indicate that the Hulu mafic–ultramafic intrusions, along with the Cu-Ni deposit, formed as a result of subduction of oceanic crust in the Early Permian.
文献关键词：
中图分类号：
作者姓名：
HAN Chunming;XIAO Wenjiao;AO Songjian;ZHANG Jien;SONG Dongfang;ZHANG Zhiyong;SONG Shuaihua;XIE Mingcai
作者机构：
Key Laboratory of Mineral Resource,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China;Xinjiang Research Center for Mineral Resources,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China
文献出处：
引用格式：
[1]HAN Chunming;XIAO Wenjiao;AO Songjian;ZHANG Jien;SONG Dongfang;ZHANG Zhiyong;SONG Shuaihua;XIE Mingcai-.Rhenium-Osmium Isotope Constraints on the Origin of the Tianyu Cu-Ni Deposit in the East Tianshan Orogenic Belt, Xinjiang, NW China)[J].地质学报（英文版）,2022(02):525-535
A类：
Rhenium,Osmium,Tianyu,osmium
B类：
Isotope,Constraints,Origin,Deposit,East,Tianshan,Orogenic,Belt,Xinjiang,NW,China,sulfide,deposit,occurs,north,margin,Central,Arc,orogenic,belt,intrusions,consist,gabbro,peridotite,olivine,pyroxenite,are,main,host,rock,ores,isotopic,analyses,bearing,minerals,from,have,been,used,determine,by,inference,sources,metals,Sulfide,samples,Re,concentrations,varying,ranges,ppb,respectively,An,initial,187Os,188Os,values,data,suggest,that,associated,mineralization,has,derived,crustal,contaminated,mantle,melts,early,show,island,arc,geochemical,signatures,which,indicate,Hulu,ultramafic,along,formed,result,subduction,oceanic,Early,Permian
AB值：
0.534704
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