辽宁四道沟金矿定位于鸭绿江断裂西侧。其容矿围岩为辽河群盖县组的变质岩系。成矿流体中富含 Na+ 、Ca2 + 、Cl-离子和还原性气体 (CO、N2 、CH4、H2 )。成矿温度为 16 0～ 2 80℃ ,成矿压力为 45～ 5 5 MPa。Eh、p H、f O2 和氢氧同位素值表明 ,成矿为相对弱还原环境 ,成矿流体为一种近中性的混合流体 The Si Dao Gorge gold deposit is located west of the Yalu River fault. Its ore-bearing rocks are the metamorphic rocks of the Gaxian Formation in the Liaohe Group. The ore-forming fluid is rich in Na +, Ca2 +, Cl- ions and reducing gases (CO, N2, CH4, H2). The metallogenetic temperature is 16 0 ~ 280 ℃ and the metallogenetic pressure is 45 ~ 5 5 MPa. Eh, p H, f O 2 and hydrogen and oxygen isotope values ​​indicate that the metallogenetic environment is relatively weak and the ore-forming fluid is a near-neutral mixed fluid