GEOLOGICAL CHARACTERISTICS AND METALLOGENIC MECHANISM OF HAIGOU GOLD DEPOSIT,JILIN PROVINCE

Haigou gold field,90 km southwest of Antu County,Jilin Province,is tectonically located on the boundary of North China platform and Variscan folding belt in Inner Mongolia The gold deposit is characterized by multi-source and multi-stage mineralization,which is related mainly to early Yanshanian granodiorite and diorite porphyrite The ore-forming matter is derived from double sources,i e,strata and magmatic rocks The metallogenic liquid is the mixture of magmatic water and meteoric water Yanshanian granodiorite is presented as heat source for mineralization This large scale deposit belongs to migmatized hydrothermal type uranium-gold deposit in genesis.