Northern Guangdong is an important part of Nanling tungsten-tin metallogenic belt, South China. The tungsten mineralization in this area consists of mainly quartz-wolframite vein-type mineralization, with W-Sn polymetallic deposits mostly distributed at the outer contact zone between concealed Late Jurassic granitic stocks and Cambrian-Ordovician low-metamorphosed sandstones and shales. Molybdenite Re-Os and muscovite Ar-40/Ar-39 isotopic dating of three typical tungsten vein-type deposits (Yaoling, Meiziwo, and Jubankeng) in northern Guangdong, show that two episodes of Late Jurassic W-Sn polymetallic mineralization occurred in this area: an early episode during the Late Jurassic (158-159 Ma) represented by the Yaoling, Hongling, and Meiziwo tungsten deposits, and a younger event during the Early Cretaceous (138 Ma) represented by the Jubankeng deposit. Analysis of available radiometric ages of several W-Sn deposits in the Nanling region indicate that these deposits formed at several intervals during the Mesozoic at 90-100, 134-140, 144-162, and 210-235 Ma, and that large-scale W-Sn mineralization in this region occurred mainly between 150 and 160 Ma.

Publication name	MINERALIUM DEPOSITA　Volume: 47 　Issue: 6 　Special Issue: SI 　Pages: 607-622　 Published: AUG 2012
Author(s)	Qi, Hua-Wen; Hu, Rui-Zhong; Wang, Xiao-Fei; Qu, Wen-Jun; Bi, Xian-Wu;Peng, Jian-Tang
Corresponding author	QI Huawen  qihuawen@vip.gyig.ac.cn  Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550002, Peoples R China.

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