Zircon U-Pb age and petrogenesis of ore-bearing granitoid for the Chigou;Cu-Mo deposit from the Zhashan basin, Shaanxi Province

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	Zircon U-Pb age and petrogenesis of ore-bearing granitoid for the Chigou;Cu-Mo deposit from the Zhashan basin, Shaanxi Province
	Xie GuiQing 5; Ren Tao ; Li JianBin ; Wang RuiTing ; Xia ChangLing ; Guo YanHui ; Dai JunZhi ; Shen ZhiChao
刊名	ACTA PETROLOGICA SINICA
	2012
卷号	28 期号:1 页码:15-26
关键词	LA-MC-ICPMS zircon U-Pb age Porphyry Cu-Mo deposit Chigou region Zhashan basin
ISSN号	893VV
英文摘要	There have plenty of Cu-Mo deposits (occurrences) which are genetically associated with intermediate-acid granitoid stock from the Zhashan basin in the Qinling Orogenic Belt, recently huge copper orebody has been discovered in the Chigou Cu-Mo deposit region, but the timing and petrogenesis of ore-bearing granitoids were poorly constrained. In this contribution, ore-bearing granitoids for the Chigou Cu-Mo deposit were selected; geochemistry and LA-MC-ICPMS zircon U-Pb data for these rocks have been carried out. They are dominantly quartz diorite, diorite and porphyritic granite in petrology, and geochemically belong to high potassic calc-alkaline I-type granitoid, geochemical and Sr-Nd isotopic evidence demonstrate that these rocks originated from partial melting of upper mantle and lower crust. The weight average Pb-206/U-238 ages for these ore-bearing granitoids are similar to 145Ma. In combined with regional geological characteristics and relation between igneous rocks and mineralization, it is proposed that the Chigou ore-bearing igneous rocks were formed during the Late Jurassic-Early Cretaceous time, and it is indicated that there have regional Late Jurassic-Early Cretaceous granitoid and porphyry-skarn Cu-Mo ploymetallic deposits in the Zhashan basin, synchronously the formation of granitoid batholith or stock and the corresponding porphyry Mo-hydrothermal vein Zn-Pb-Ag deposits in South margin of North China Craton.
学科主题	矿床地质
WOS关键词	QINLING OROGENIC BELT ; NATURAL REFERENCE MATERIAL ; LA-ICP-MS ; TECTONIC ; IMPLICATIONS ; GEOLOGICAL SIGNIFICANCE ; COPPER-DEPOSITS ; CHINA ; PLUTONS
WOS研究方向	Geology
语种	中文
WOS记录号	WOS:000300386700002
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39583]
专题	中国地质调查局水文地质环境地质调查中心
作者单位	1.Chinese Acad Geol Sci, MLR Key Lab Metallogeny & Mineral Assessment, Inst Mineral Resources, Beijing 100083, Peoples R China. 2.NW Min & Geol Explorat Bur Nonferrous Met, Geol Team 713, Shangluo 726000, Peoples R China. 3.NW Min & Geol Explorat Bur Nonferrous Met, Geol Explorat Inst, Xian 710054, Peoples R China. 4.China Univ Geosci, Beijing 100083, Peoples R China. 5.中国地质科学院矿产资源研究所
推荐引用方式 GB/T 7714	Xie GuiQing,Ren Tao,Li JianBin,et al. Zircon U-Pb age and petrogenesis of ore-bearing granitoid for the Chigou;Cu-Mo deposit from the Zhashan basin, Shaanxi Province[J]. ACTA PETROLOGICA SINICA,2012,28(1):15-26.
APA	Xie GuiQing.,Ren Tao.,Li JianBin.,Wang RuiTing.,Xia ChangLing.,...&Shen ZhiChao.(2012).Zircon U-Pb age and petrogenesis of ore-bearing granitoid for the Chigou;Cu-Mo deposit from the Zhashan basin, Shaanxi Province.ACTA PETROLOGICA SINICA,28(1),15-26.
MLA	Xie GuiQing,et al."Zircon U-Pb age and petrogenesis of ore-bearing granitoid for the Chigou;Cu-Mo deposit from the Zhashan basin, Shaanxi Province".ACTA PETROLOGICA SINICA 28.1(2012):15-26.