Rock geochemical characteristics and genesis of the Xihuang vanadium deposit in Henan Province
WANG Xiao-Gao1,2(), WANG Ying-Chao1, CHENG Bao-Cheng1, YANG Yong-Qian1, WANG Jie1(), CHEN Peng1
1.Henan Institute of Non-ferrous Metal Exploration,Zhengzhou 450052, China 2.Key Laboratory of Deep Ore-prospecting Technology Research for Non-ferrous Metals of Henan Province, Zhengzhou 450052, China
The Xihuang vanadium deposit is located in the black rock series of the lower Cambrian Shuigoukou Formation in southern Qinling Mountain. The orebody is large, and the ore-bearing horizon and grade are relatively stable. The ore types are mainly carbonaceous mudstone and siliceous mudstone. The analysis of petro-geochemical elements and REE indicates that the vanadium deposit was formed in the hypoxic reductive environment from the continental margin to the deep sea, and the rock material source came from sea water, hydrothermal jet and terrigenous debris, with the biological activity playing an important role in the aggregation and precipitation of the vanadium deposit. Based on the comprehensive geological and geochemical characteristics, it is concluded that the vanadium deposit belongs to the biogenesis of hot water deposition, and that the vanadium deposit should be of biological and hydrothermal sedimentary origin.
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