猫岭金矿物质成分及金的赋存状态

猫岭金矿赋存于早元古宙辽河群上亚群盖县组二段绢云千枚岩夹石英岩中。矿石的主要金属矿物有毒砂、磁黄铁矿、银金矿和自然金,毒砂、磁黄铁矿是 Au 的主要载体矿物,矿石有益元素主要有 Ag、Zn、Pb、Cu、Sb,主要有害元素为 As。Au 呈晶隙金、裂隙金和包体金赋存于毒砂、磁黄铁矿等矿物中,因此,适于通过堆浸法利用。

MATERIAL COMPOSITION OF MAOLING GOLD DEPOSIT AND EXISTENCE STATE OF Au

Maoling gold deposit occured in quartzite within sericitephyllite,the second mem-ber of Gaixian Formation,upper subgroup of Liaohe Group,early Proterozoic eon. Themajor metal minerals of ore are arsenopyrite, pyrrhotine,electrum and native gold.Arsenopyrite and pyrrhotine are the main carrier minerals. The useful elements mainlyare Ag,Zn,Pb,Cu,Sb;the harmful element is As. In the form of intercrystalline gold,fissure gold and enclosure gold,Au exists in such minerals as arsenopyrite and pyrrho-tine. So,by the use of pile-infusion method,utilization value of ore can be increased.