内蒙古自治区阵巴尔虎旗“六一”硫铁矿矿床,位于大兴安岭海西褶皱带与海拉尔坳陷接合处复杂构造带的东北端。区内可见有北东及北西两组近似正交的断裂构造。褶皱不甚发育,出露地层以泥盆系黑色板岩组、中酸性熔岩火山碎屑岩组、凝灰质砂岩组及侏罗、白垩系中基性、基性火山熔岩为主(图1)。岩浆活动频繁,多呈岩基、岩株及喷出岩分布。 Inner Mongolia Autonomous Region Barghuqi “61” pyrite deposit, located in the Daxinganling Hercynian fold belt and Hailar depression at the junction of the northeast end of the complex structure. The area can be seen in the North East and North West two groups of approximately orthogonal fault structure. The folds are less developed. The exposed strata are dominated by the Devonian black slate group, the medium-acid lava pyroclastic group, the tuffaceous sandstone group, and the Jurassic, Cretaceous medium and basic volcanic lava (Figure 1) . Magmatic activity is frequent, mostly rock foundation, rock and spray rock distribution.