Abstract:Bushang gold deposit locates in middle and north part of Jinling gold deposit in Jiaodong area. In this paper, through detailed study on petrology, mineralogy and geochemistry of typical ores, combining with characteristics of geotectonics, comprehensive study has been carried out to reveal the deposit genesis. Through detailed geochemical study, it is found that rocks in this area are metamorphic rocks containing more siliceous minerals and metallic minerals. It is formed by gas-liquid metasomatism. Gold deposits were formed in the orogenic period. Its sources came from EM1 type enriched mantle magma formed by the subduction of oceanic crust with precipitation of fluid metasomatism. It is the metasomatic product of gas-liquid fluid which precipitated from EM1 type enriched mantle mafic magmas and shell source materials.
