摘要
鸡叫沟金矿床矿石及含矿岩系的稳定同位素、流体包裹体及稀土元素等地球化学研究表明,金矿床形成于碰撞造山运动后期的裂谷环境,成矿物质主要来自中基性、超基性火山岩,为低温、低盐、浅成的金矿床.硫来自岩浆硫.矿物质水主要来自大气降水,后期又萃取了岩浆水.矿床类型为与岩浆作用有关的浅成低温热液型.
Study on the stable isotope, fluid inclusions and REEs for the ores and ore-bearing rock series in the Jijiaogou gold deposit in Subei County, Gansu Province indicates that the deposit was formed in rift environment during post collision orogeny. The ore-forming matters were derived from mainly intermediate-basic to uhrabasic volcanic rocks. It is an epithermal deposit with low-temperature and low-salinity. The sulfur is magma-derived. The mineral fluid is dominantly from atmospheric water and later extraction of magmatic water. The deposit genetically belongs to epithermal type related to magmatism.
出处
《地质与资源》
CAS
2006年第4期272-276,294,共6页
Geology and Resources
基金
国土资源大调查项目(编号200210200011)资助.
关键词
矿床地球化学
矿床成因
金矿床
肃北县
geochemistry of deposit
genesis
gold deposit
Subei County
