Zircon U-Pb SHRIMP ages of sub-volcanic bodies related with porphyritic Fe-deposits in the Luzong and Ningwu basins, Middle and Lower Yangtze River Reaches, Central China

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	Zircon U-Pb SHRIMP ages of sub-volcanic bodies related with porphyritic Fe-deposits in the Luzong and Ningwu basins, Middle and Lower Yangtze River Reaches, Central China
	Xue, HM (Xue HuaiMin); Dong, SW (Dong ShuWen); Ma, F (Ma Fang)
刊名	ACTA PETROLOGICA SINICA
	2010
卷号	26 期号:9 页码:2653-2664
关键词	Shoshonite Sub-volcanic rock SHRIMP zircon U-Pb dating Luzong basin Ningwu basin Middle and Lower Yangtze River Reaches
ISSN号	1000-0569
英文摘要	Luzong basin and Ningwu basin, which are two largest basins among several Mesozoic volcanic basins distributed in the Middle and Lower Yangtze River Reaches, developed a suite of unique rock series (shoshonitic series) and abundant iron- sulfur iron- and nonmetal ore deposits, especially porphyry Fe-deposits. The dominant metallogenic bodies are sub-volcanic rocks fanned in second volcanic activity cycle, syenite-porphyry for the Luzong basin and augite diorite porphyrite for Ningwu basin. In this work, we used zircon SHRIMP U-Pb technique accurately dating their emplacement ages of the Bajiatan body and the Jiaochong body in the Luzong basin and the Yinshan body in the Ningwu basin. The results are as follows; The zircon grains from these three bodies yield an emplacement ages of 131.0 +/- 1. 1 Ma, 131.5 +/- 1. 6Ma and 127. 8 +/- 1. 8Ma respectively. The volcanic-subvolcanic rocks in Luzong basin and Ningwu basin (as well as all Middle and Lower Yangtze River Beaches) formed in very short time, predicate that "suddenly" lithospheric thinning was dominant mechanism of magmatism and cosmically metallogenesis in the reaches.
学科主题	矿床地质
WOS关键词	SHIZISHAN ORE-FIELD ; CONTINENTAL-CRUST ; ANHUI PROVINCE ; GEOLOGICAL IMPLICATIONS ; LITHOSPHERIC MANTLE ; COPPER-DEPOSIT ; EASTERN CHINA ; DABIE OROGEN ; CRATON ; ROCKS
WOS研究方向	Geology
语种	中文
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000283384100011
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39207]
专题	中国地质调查局
作者单位	Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Xue, HM ,Dong, SW ,Ma, F . Zircon U-Pb SHRIMP ages of sub-volcanic bodies related with porphyritic Fe-deposits in the Luzong and Ningwu basins, Middle and Lower Yangtze River Reaches, Central China[J]. ACTA PETROLOGICA SINICA,2010,26(9):2653-2664.
APA	Xue, HM ,Dong, SW ,&Ma, F .(2010).Zircon U-Pb SHRIMP ages of sub-volcanic bodies related with porphyritic Fe-deposits in the Luzong and Ningwu basins, Middle and Lower Yangtze River Reaches, Central China.ACTA PETROLOGICA SINICA,26(9),2653-2664.
MLA	Xue, HM ,et al."Zircon U-Pb SHRIMP ages of sub-volcanic bodies related with porphyritic Fe-deposits in the Luzong and Ningwu basins, Middle and Lower Yangtze River Reaches, Central China".ACTA PETROLOGICA SINICA 26.9(2010):2653-2664.