Large-scale tungsten-tin mineralization in the Nanling region, South China Metallogenic ages and corresponding geodynamic processes

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	Large-scale tungsten-tin mineralization in the Nanling region, South China Metallogenic ages and corresponding geodynamic processes
	Mao, JW (Mao JingWen); Xie, GQ (Xie GuiQing); Guo, CL (Guo ChunLi); Chen, YC (Chen YuChuan)
刊名	ACTA PETROLOGICA SINICA
	2007
卷号	23 期号:10 页码:2329-2338
关键词	W-Sn deposits large-scale mineralization back-arc granite belt extension Late Jurassic-Early Cretaceous Nanling region South China
ISSN号	1000-0569
英文摘要	The Nanling region, located in the central part of South China, is the most important W-Sn metallogenic province in China and even over the world. Based on the latest highly precise radiometric dating of the ores and related granites and new progress in the study of geodynamic processes we propose that large-scale W-Sn mineralization occurred in the Nanling region in the Mid-Late Jurassic (165 to 150 Ma) and that its corresponding tectonic setting could be a back-are region of the continental margin. When the Paleo-Pacific plate was subducted beneath the Eurasian continent, a number of paralleling NE-trending extensional belts developed in a back-arc region where the mantle-crust interaction was strong. The intersection sites between these extensional belts and long-lived previous E-W-trending faults were the central areas of magmatism and mineralization, and the largest W-Sn-Mo-Bi-Be mineralization clusters in southern Hunan is located in the intersection site between the Shihang NE-trending fault belt and the E-W-trending deep fault in the middle ridge zone of the Nanling region. In the Mid-Late Cretaceous, because the Paleo-Pacific plate or Izalagi plate strike-shift to NNE-direction the Eurasian continent started to extension. In this geodynamic setting, the large-scale volcanic eruption mainly took place east of the Wuyi Mountains whereas range-basin tectonics appeared extensively in South China including the Nanling region, NNE-trending Cretaceous red bed-volcanic basins alternate with uplifts represented by granite, and some granite stocks emplaced at 130 similar to 90 Ma and their related tin mineralization can be found in some basins. For instance, the Yanbei and Taoxiba in Jinagxi province, Yinyan in Guangdong province and the Jiepailing in the Hunan province occurred in this period as porphyry or porphyry-skarn ores.
学科主题	矿床地质
WOS关键词	SR-ND ISOTOPE ; GEOCHEMISTRY ; GEOCHRONOLOGY ; GUANGXI ; GRANITE ; BLOCKS ; NORTH
WOS研究方向	Geology
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000254139000002
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38411]
专题	中国地质调查局
作者单位	Chinese Acad Geol Sci, Inst Mineral Resources, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	Mao, JW ,Xie, GQ ,Guo, CL ,et al. Large-scale tungsten-tin mineralization in the Nanling region, South China Metallogenic ages and corresponding geodynamic processes[J]. ACTA PETROLOGICA SINICA,2007,23(10):2329-2338.
APA	Mao, JW ,Xie, GQ ,Guo, CL ,&Chen, YC .(2007).Large-scale tungsten-tin mineralization in the Nanling region, South China Metallogenic ages and corresponding geodynamic processes.ACTA PETROLOGICA SINICA,23(10),2329-2338.
MLA	Mao, JW ,et al."Large-scale tungsten-tin mineralization in the Nanling region, South China Metallogenic ages and corresponding geodynamic processes".ACTA PETROLOGICA SINICA 23.10(2007):2329-2338.