The genesis of gold deposits in Xuefeng uplift zone

Based on basic knowledge in geosciences and instances of ore deposits, the authors firstly put forward the argument that gold within rocks in the Xuefeng uplift zone can't be mobilized, migrated and enriched for mineralization by low-grade regional metamorphism of such rocks as slate and meta-sandstone. The fault structure itself cannot be mineralized in the process of dynamic metamorphism. The content of gold in strata in the fracture zone is only 0.123% of that in the orebody. The metallogenic temperature of the gold deposit determined by fluid inclusions mainly ranges from 200 ℃ to 300 ℃, which indicates that the rock gold deposit in the Xuefeng uplift zone was not sourced from underground hydrothermal solutions. The similarity between some ore minerals, associated components, trace elements, and isotopic geochemistry of gold deposits and the similarity of granitic magmatic rocks show their genetic relationships. The gravitational and magnetic data suggest that there might exist a large concealed intrusion under the gold deposit where there are no magmatic rocks exposed on the surface. The above discussion and exclusion suggest that the genetic type of rock gold deposits in Xuefeng uplift belt is magmatic hydrothermal deposit.