SHREVIP zircon U-Pb ages, Hf isotopic compositions and trace elements characteristics of the granites from the Qian'echong Mo deposit, Dabie Orogen

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质科学院矿产资源研究所

	SHREVIP zircon U-Pb ages, Hf isotopic compositions and trace elements characteristics of the granites from the Qian'echong Mo deposit, Dabie Orogen
	Gao Yang 5; Ye HuiShou ; Li YongFeng 1; Luo ZhengZhuan 1; Li FaLing 2; Xiong BiKang 3; Meng Fang 3
刊名	ACTA PETROLOGICA SINICA
	2014
卷号	30 期号:1 页码:49-63
关键词	SHRIMP zircon U-Pb age Hf isotope Qian' echong Mo deposit Dabie
ISSN号	1000-0569
英文摘要	The Qian'echong porphyry Mo deposit is located in the Dabie area, the eastern part of the East Qinling-Dabie molybdenum belt. The molybdenum mineralization mainly hosted by the Devonian Nanwan Formation in the external contact zone, with minor by the Qian'echong concealed stock, which consists of monzogranite and granite porphyry. Sensitive high-resolution ion microprobe (SHRIMP) zircon U-Pb dating constrains the crystallization of the monzogranite and granite porphyry at 130 +/- 2Ma and 129 +/- 2Ma, respectively. They are quite in accordance with each other within errors, indicating the Early Cretaceous magmatism. According to zircon Hf isotope analyses, the epsilon(Hf)(t) values of monzogranite and granite porphyry are -24. 5 similar to -2. 7 and -19. 8 similar to -11.2, respectively. Both the monzogranite and the granite porphyry have large ranges of epsilon(Hf)(t) values, indicating that they Mainly derived from the partial melting of ancient crust, with minor juvenile components. The calculated t(2DM) values from Hf isotopes and Paleoproterozoic inherited zircon suggest that Paleoproterozoic-Archean basement rocks have been involved in the source rocks of these granites. The zircons from the monzogranite and granite porphyry have average Ce4+/Ce3+ ratios of 287. 4 and 55. 9, respectively, suggesting that the monzogranite were in higher oxygen fugacity than the granite porphyry, however, the Mo mineralization is more likely related to the later-formed granite porphyry. The Qian'echong Mo deposit formed at an Early Cretaceous lithospheric extensional setting in the Dabie orogen. The delamination caused asthenosphere upwelling and mantle-crust interaction, which probably provided ore-forming material of Qian'echong Mo deposit.
学科主题	矿床地质
WOS关键词	EAST-CENTRAL CHINA ; SUBDUCTED CONTINENTAL-CRUST ; MESOZOIC MOLYBDENUM DEPOSITS ; EARLY CRETACEOUS GRANITOIDS ; YANGTZE-RIVER BELT ; NORTH CHINA ; GEODYNAMIC SETTINGS ; MANTLE INTERACTION ; METAMORPHIC ROCKS ; SOUTH CHINA
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000330817100004
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40444]
专题	中国地质科学院矿产资源研究所
作者单位	1.Chinese Acad Geol Sci, Inst Mineral Resources, MLR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China 2.Henan Prov Nonferrous Met Geol & Mineral Resource, Zhengzhou 450016, Peoples R China 3.Henan Bur Geol & Mineral Resources, Geol Survey 3, Xinyang 464000, 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	Gao Yang,Ye HuiShou,Li YongFeng,et al. SHREVIP zircon U-Pb ages, Hf isotopic compositions and trace elements characteristics of the granites from the Qian'echong Mo deposit, Dabie Orogen[J]. ACTA PETROLOGICA SINICA,2014,30(1):49-63.
APA	Gao Yang.,Ye HuiShou.,Li YongFeng.,Luo ZhengZhuan.,Li FaLing.,...&Meng Fang.(2014).SHREVIP zircon U-Pb ages, Hf isotopic compositions and trace elements characteristics of the granites from the Qian'echong Mo deposit, Dabie Orogen.ACTA PETROLOGICA SINICA,30(1),49-63.
MLA	Gao Yang,et al."SHREVIP zircon U-Pb ages, Hf isotopic compositions and trace elements characteristics of the granites from the Qian'echong Mo deposit, Dabie Orogen".ACTA PETROLOGICA SINICA 30.1(2014):49-63.