Discovery and characteristics of the Niujiaolong tungsten polymetallic deposit in Ganxian district, Jiangxi Province

The Niujiaolong tungsten polymetallic deposit in Ganxian district of Jiangxi Province, with metallogenic prospects for large-scale deposit, is discovered through the technological measures of 1:50 000 mineral geological survey, large scale mapping, exploratory trench and deep drilling verification by Nanjing Center, China Geological Survey(CGS)during the targeted poverty alleviation in Southern Jiangxi deployed by CGS. The results show that the deposit is a quartz veinlet-stockwork belt-type tungsten polymetallic deposit, and south and north ore belts are delineated on the surface, among which the nearly SN trending north vein belt(Ⅰ)is the main ore vein, with quartz veinlet-stockwork vein type tungsten polymetallic deposit dominated, the width of 10～30 m and north-south extension over 1 500 m. In the verified boreholes ZK001 and ZK002, 157 and 249 ore-bearing quartz veins are found respectively, with 4 tungsten orebodies, 2 silver ore bodies and 8 ore-bearing veinlet zones delineated. The discovery of the deposit not only makes a new breakthrough in the blank area of ore prospecting in Southern Jiangxi, supplying a new tungsten polymetallic resource base for the area to cast off poverty and get rich, but also provides a theoretical basis and example for tungsten polymetallic deposit prospecting in Southern Jiangxi and adjacent areas.