摘要
大黑山金矿是赋存于大庙花岗岩体外接触带的破碎蚀变岩型和石英脉型金矿。已发现矿脉 8条 ,以 2 7号脉为主要矿脉。矿床分为 2个成矿期和 4个成矿阶段。主要载金矿物为黄铁矿、石英。成矿温度为 2 60～ 31 0℃。金的赋存状态为包裹体金、晶隙金及裂隙金 ;金矿物为自然金和银金矿。金矿的形成经历了多期、多阶段的成矿作用 ;金矿为浅 -中深成矿的中温热液矿床。
Daheishan gold deposit is a fractured alteration type and quartz vein type gold deposit, hosted in the outer contact zone of Damiao granite. Eight veins have been discovered, while No.27 is the main vein. The deposit is divided into two metallogenic periods and four metallogenic stages. Native gold are mainly hosted in pyrite and quartz. The metallogenic temperature is 260~310℃. Occurrences of native gold are inclusion gold, crystal fractured gold and fissure gold, gold minerals are native gold and electrum. The gold deposit experienced multiphase and multistage mineralization. The deposit is a mesothermal gold deposit mineralized in shallow middle depth.
出处
《黄金地质》
2000年第3期42-46,共5页
Gold Geology
关键词
金矿床
金矿物
地质特征
gold deposit
geological characteristic
gold mineral
Inner Mongolia
