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| GEOLOGY AND GENESIS OF VANADIUM DEPOSITS IN THE BLACK ROCK SERIES IN XINCHENG, GUIZHOU PROVINCE |
| ZHENG Yuan |
| No. 105 Geologic Party, Guizhou Bureau of Geology and Mineral Resources Exploration and Development, Guiyang 550001, China |
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Abstract The Lower Cambrian black rock series are broadly distributed in Xincheng area, Guizhou Province, with rich mineral resources, especially vanadium. The vanadium deposits occur in the black carbonaceous clayrock of Lower Cambrian Niutitang formation. The average grade of V2O5 is 0.64%. The vanadium ore is mainly psammatic type. Study on the diagenesis and metallogenesis shows that the Xincheng vanadium deposit is genetically formed by marine chemical or biochemical sedimentation, with also eluviation origin. The mineralization is strictly controlled by strata, lithology and rock facies.
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Received: 10 December 2008
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2009, Vol. 18 
