Fluid inclusion study of Xihuashan tungsten deposit in the southern Jiangxi province, China

The Xihuashan tungsten deposit is closely related to a small highly evolved granitic intrusion. The fluid phases associated with the wolframite-bearing quartz veins have been investigated using microthermometry and the Raman microprobe; they are highly variable in density and composition. The earlier fluids are low-density and low-salinity CO2-bearing aqueous solutions circulating at temperatures up to 420 °C, and low-salinity (2–3 equiv. wt%...