摘要
海沟金矿床具有多源、多期、多阶段成矿特点，成矿主要与燕山早期花岗闪长岩及闪长玢岩有关．成矿物质主要来自中元古界色洛河群，也有部分来自岩浆岩．成矿水为岩浆水和大气降水的混合．成矿热源为燕山期花岗闪长岩．成因类型应属混合岩化热液型铀金大型矿床．
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
关键词
金矿床
成矿机理
吉林
铀
地质特征
uranium gold deposit metallogenic mechanism Jilin Province
