Petrogenesis of the Yangzhuang Nb- and Ta-rich A-type granite porphyry in West Junggar, Xinjiang, China

	Petrogenesis of the Yangzhuang Nb- and Ta-rich A-type granite porphyry in West Junggar, Xinjiang, China
	Wei Mao; Xiaofeng Li; Guo Wang; Rong Xiao; Mou Wang; Yanlong Li; Manchuan Ren; Yanping Bai; Feng Yang
	2014
发表期刊	Lithos
卷号	198 -199 期号:1 页码:172-183
摘要	West Junggar is featured with a wide spread of Late Carboniferous-Early Permian A-type granites. Systematic comparison of the Yangzhuang granite porphyry and the regional coeval A-type granites (RCAG) shows that: (1) all the Late Carboniferous-Early Permian A-type granites are of the A(2) group except the Yangzhuang granite porphyry; (2) the Nb and Ta contents of the Yangzhuang granite porphyry are nearly 10 times that of the RCAG while Ti content is more depleted; (3) epsilon Nd (t) of the Yangzhuang granite porphyry is slightly lower and the Sr isotope has a wider range relative to the RCAG. Previous research revealed that highly incompatible elements including Nb and Ta can be transferred into the mantle wedge by precipitation of amphibole from the ascending fluids generated by dehydration of subducted slab. It is inferred that enhanced heat flux brought by the Late Carboniferous ridge subduction decomposed amphibole in the mantle wedge to generate Nb and Ta-rich melt and finally produced the Yangzhuang granite porphyry.
关键词	Yangzhuang Granite Porphyry A-type Granite Nb Ta Ridge Subduction West Junggar
学科领域	矿床地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/5235
专题	矿床地球化学国家重点实验室_矿床地球化学国家重点实验室_期刊论文矿床地球化学国家重点实验室
推荐引用方式 GB/T 7714	Wei Mao,Xiaofeng Li,Guo Wang,et al. Petrogenesis of the Yangzhuang Nb- and Ta-rich A-type granite porphyry in West Junggar, Xinjiang, China[J]. Lithos,2014,198 -199(1):172-183.
APA	Wei Mao.,Xiaofeng Li.,Guo Wang.,Rong Xiao.,Mou Wang.,...&Feng Yang.(2014).Petrogenesis of the Yangzhuang Nb- and Ta-rich A-type granite porphyry in West Junggar, Xinjiang, China.Lithos,198 -199(1),172-183.
MLA	Wei Mao,et al."Petrogenesis of the Yangzhuang Nb- and Ta-rich A-type granite porphyry in West Junggar, Xinjiang, China".Lithos 198 -199.1(2014):172-183.

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