Geological characteristics and metallogenic model of Sipingshan hot spring type gold deposit in Hulin of Heilongjiang

Sipingshan hot spring type gold deposit is located in eastern Wandashan of circum Pacific metallogenic belt,and the gold ores are yielded in silicified zones in Datashanlichang and Sipingshan formations of Upper Cretaceous.The research on petrochemistry,H,O and S isotopic geochemistry and wall rock alterations indicated that the metallogenic fluid composition in this deposit was meteoric water and magmatic water with dual nature of them.The ore-forming materials mainly came from the differentiation of underground magma,and few from high background wall rocks.The magmatic heat source came from the residual heat of magma.The metallogenic model has been established combined with the tectonic setting.