Zircon U-Pb geochronology and geochemistry of Hanzheganeng Cu-Au deposit in West Junggar, Xinjiang: Implications for magma source and metallogenic tectonic setting

	Zircon U-Pb geochronology and geochemistry of Hanzheganeng Cu-Au deposit in West Junggar, Xinjiang: Implications for magma source and metallogenic tectonic setting
	Guo ZhengLin 1,2; Li JinXiang 1; Qin KeZhang 1; Dong LianHui 1,3; Guo XuJi 2; Tang DongMei 1; Du XingWang 2
刊名	ACTA PETROLOGICA SINICA
	2010-12-01
卷号	26 期号:12 页码:3563-3578
关键词	Zircon U-Pb geochronology Lithogeochemistry Magma source Metallogenic tectonic setting Hanzheganeng West Junggar
ISSN号	1000-0569
文献子类	Article
英文摘要	Hanzheganeng Cu-Au deposit, located in northwestern margin of Junggar, is a newly discovered porphyry copper deposit with great potential. Magmatic emplacement activity is mainly diorite in the early stage, and is mainly granodiorite and moznogranite porphyry in the late stage. Porphyraceous quartz monzonite yields a LA-ICP-MS zircon U-Pb age of 343.6 +/- 5.7Ma similar to 345.3 +/- 8.3Ma, and monzogranite porphyry yields a zircon age of 334.9 +/- 7.3Ma similar to 336.4 +/- 7.5Ma. These ages indicate that there is an Early Carboniferous important magmatic-hydrothermal Cu-Au mineralization event in Sawuer region of West Junggar. Major elements of granodiorite, quartz monzonite, diorite porphyrite, diorite, and monzogranite porphyry show a consistent evolution trend, indicating that they may be the product of the same magmatic evolution. And their geochemical characteristics of enriching in large-ion lithophile elements (LILE: such as Rb, Ba, K, Sr) and more mobile incompatible elements (such as: U, Th), relatively depleting in high field strength elements (HFSE; such as Nb, Ta, Ti) show that they have the characteristics of arc magma. Their isotopic characteristics with (87)Sr/(86)Sr(i) ratio of 0.7033 similar to 0.7037, (143)Nd/(144)Nd ratio of 0.512538 similar to 0.512579, epsilon(Nd)(t) value of +6.7 similar to +7.5, indicate their magma source is an analogy of the depleted mantle. And they have young Nd two-stage model age of 488 similar to 553Ma, indicating that Hanzheganeng magmatic rocks may be derived from juvenile basaltic lower crust differentiated from the depleted mantle source. The formation age of Hanzheganeng Cu-Au deposit is significantly earlier than the formation age of A-type granites (290 similar to 300Ma) in this region, combined with trace element characteristics, suggest this deposit was formed in accretional arc setting, and Sawuer district have favorable metallogenetic conditions for porphyry Cu-Au deposits.
WOS关键词	SAWUR GOLD BELT ; NORTHERN XINJIANG ; GEODYNAMIC SIGNIFICANCE ; GEOLOGICAL SIGNIFICANCE ; CONTINENTAL-CRUST ; GRANITIC-ROCKS ; COPPER-DEPOSIT ; CENTRAL-ASIA ; MO DEPOSIT ; CHINA
WOS研究方向	Geology
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000286452000009
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/72446]
专题	中国科学院地质与地球物理研究所
通讯作者	Guo ZhengLin
作者单位	1.CAS, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Xinjiang Geoexplorat Bur Nonferrous Met, Altay 839000, Peoples R China 3.Xinjiang Bur Geol & Mineral Resouccs, Uramuqi 830000, Peoples R China
推荐引用方式 GB/T 7714	Guo ZhengLin,Li JinXiang,Qin KeZhang,et al. Zircon U-Pb geochronology and geochemistry of Hanzheganeng Cu-Au deposit in West Junggar, Xinjiang: Implications for magma source and metallogenic tectonic setting[J]. ACTA PETROLOGICA SINICA,2010,26(12):3563-3578.
APA	Guo ZhengLin.,Li JinXiang.,Qin KeZhang.,Dong LianHui.,Guo XuJi.,...&Du XingWang.(2010).Zircon U-Pb geochronology and geochemistry of Hanzheganeng Cu-Au deposit in West Junggar, Xinjiang: Implications for magma source and metallogenic tectonic setting.ACTA PETROLOGICA SINICA,26(12),3563-3578.
MLA	Guo ZhengLin,et al."Zircon U-Pb geochronology and geochemistry of Hanzheganeng Cu-Au deposit in West Junggar, Xinjiang: Implications for magma source and metallogenic tectonic setting".ACTA PETROLOGICA SINICA 26.12(2010):3563-3578.