Zircon U-Pb geochronology and Sr-Nd-Hf isotopic compositions of the Yuanzhuding granitoid porphyry within the Shi-Hang Zone, South China: Petrogenesis and implications for Cu-Mo mineralization

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	Zircon U-Pb geochronology and Sr-Nd-Hf isotopic compositions of the Yuanzhuding granitoid porphyry within the Shi-Hang Zone, South China: Petrogenesis and implications for Cu-Mo mineralization
	[Zhong, Lifeng] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China ; [Li, Jie ; Peng, Touping] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China ; [Xia, Bin] Sun Yat Sen Univ, Guangdong Higher Educ Inst, Key Lab Offshore Oil Explorat & Dev, Guangzhou 510006, Guangdong, Peoples R China ; [Liu, Liwen] Guangdong Bur Geol Explorat, Geol Team 719, Zhaoqing 526020, Peoples R China
刊名	LITHOS
	2013
卷号	177 页码:402-415
关键词	Sr-Nd-Hf isotopes Adakitic rock Yuanzhuding porphyry Cu-Mo deposit Shi-Hang Zone South China
ISSN号	0024-4937
通讯作者	zhonglf@scsio.ac.cn
中文摘要	The Shi-Hang Zone is an important NE-SW-trending Mesozoic magmatic belt in South China, which is dominated by granites with relatively high epsilon(Nd)(t) values and young T-DM model ages. Here, we present laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) zircon U-Pb ages, major and trace element compositions, and Sr-Nd-Hf isotope data for the Yuanzhuding porphyritic granitoids within the southwestern Shi-Hang Zone, and use these data to determine the origin of this granitoid and its relationship with Cu-Mo mineralization. Zircon U-Pb dating indicates that these granitoids were emplaced at 157.8 +/- 1.1 Ma. They have initial Sr-87/Sr-86 ratios of 0.70941-0.71398, epsilon(Nd)(t) values of -3.15 to -2.02, and in situ zircon epsilon(Hf)(t) values of +1.71 to +6.17. Geochemically, most of them are high-K calc-alkaline and show an adakitic affinity. They are more likely emplaced in a continental arc setting related to westward subduction of the paleo-Pacffic plate. Their parental magma originated chiefly from the overlying sediments of the downgoing slab, and subsequently interacted with the lithospheric mantle wedge at the temperatures of similar to 790 degrees C. High oxygen fugacity during magmatic evolution played a crucial role in the development of Cu-Mo mineralization within the Yuanzhuding. The discovery of the Yuanzhuding deposit implies that the Chenzhou-Huaiji fault belt is most likely prospective for mineral exploration for porphyry Cu-Mo deposits. (C) 2013 Elsevier B.V. All rights reserved.
学科主题	Geochemistry & Geophysics ; Mineralogy
资助信息	We are grateful to Dr. Taiping Zhao, Yan Wang and Xiaoping Long for their helpful discussions. Xianglin Tu, Yanyan Zhou and Xiuguang Lin are thanked for their assistance with laboratory-based research and fieldwork. The manuscript benefited greatly from the constructive comments of two anonymous reviewers and the editor-in-chief Prof. Nelson Eby. Thanks also go to Dr. Aaron Stallard of New Zealand for proofreading the language of this manuscript. Financial support was provided by the National Natural Science Foundation of China (U1133002; 41172095; 41272126; 41173038), and by the Chinese Academy of Sciences (GIGCAS-135-Y234151001).
原文出处	ELSEVIER SCIENCE BV
语种	英语
WOS记录号	WOS:000324721000025
公开日期	2015-01-22
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/11119]
专题	南海海洋研究所_中科院边缘海地质重点实验室
推荐引用方式 GB/T 7714	[Zhong, Lifeng] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China,[Li, Jie,Peng, Touping] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China,et al. Zircon U-Pb geochronology and Sr-Nd-Hf isotopic compositions of the Yuanzhuding granitoid porphyry within the Shi-Hang Zone, South China: Petrogenesis and implications for Cu-Mo mineralization[J]. LITHOS,2013,177:402-415.
APA	[Zhong, Lifeng] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China,[Li, Jie,Peng, Touping] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China,[Xia, Bin] Sun Yat Sen Univ, Guangdong Higher Educ Inst, Key Lab Offshore Oil Explorat & Dev, Guangzhou 510006, Guangdong, Peoples R China,&[Liu, Liwen] Guangdong Bur Geol Explorat, Geol Team 719, Zhaoqing 526020, Peoples R China.(2013).Zircon U-Pb geochronology and Sr-Nd-Hf isotopic compositions of the Yuanzhuding granitoid porphyry within the Shi-Hang Zone, South China: Petrogenesis and implications for Cu-Mo mineralization.LITHOS,177,402-415.
MLA	[Zhong, Lifeng] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China,et al."Zircon U-Pb geochronology and Sr-Nd-Hf isotopic compositions of the Yuanzhuding granitoid porphyry within the Shi-Hang Zone, South China: Petrogenesis and implications for Cu-Mo mineralization".LITHOS 177(2013):402-415.