桓仁双岭子地区多金属矿床矿化特征及成因浅析

Preliminary Study on Mineralization Characteristics and Genesis of Multi Metal in Shuanglingzi Area of Huanren

双岭子区位于东西向天山—阴山巨型纬向构造带与北东向华夏构造带的复合部位。分布有古老基底、古生代盖层、中生代盖层及新生代盖层。褶皱构造和断裂构造均较发育。矿种有金属矿物、放射性矿物、脉石矿物等。矿石呈致密浸染状结构，以脉状、细脉状、网脉状在裂隙中充填交代。矿石多呈致密块状、条带状构造。围岩蚀变为矽化、透闪石化、碳酸盐化、绿帘石化和少量的石榴石矽卡岩化。矿化与地层、岩石、蚀变、构造等均有一定的关系；矿床成因类型有热液型裂隙充填矿床、沉积～热液型多金属硫化物矿床。

Shuanglingzi area is located in The east -west Tianshan - Yinshan zonal giant tectonic belt and the north-east China structural belt composite site . Distribution of ancient basement , Paleozoic caprock , Mesozoic and Ceno ‐zoic caprock . Fold structure and fault structures compared with development . Mineral varieties include Metallic min‐eral , radioactive minerals , gangue minerals . Ore was dense disseminated structure to veins , veinlets shape , stockwork filling in cracks in the account . Ore mostly dense massive , banded structure . Wall rock alteration is silicification , tremolite , carbonatization , epidotization and a small amount of garnet skarnization .Strata , rocks , alteration , struc‐ture , etc . all have a certain relationship with Mineralization;types of genesis is fracture filling hydrothermal deposits , sedimentary - hydrothermal polymetallic sulphide deposits .