丹东四道沟金矿构造控矿特征、成矿机理与找矿方向

Structural Ore-controlling Character Metallogenic Mechanasm and Ore-hunting Orentation of Sidaogou Gold Deposit in Dandong

四道沟金矿位于辽宁省丹东地区,是一个混合岩化热液层控矿床。矿体围岩为早元古界辽河群盖县组中部变质岩系。矿体与围岩界限不清楚。“Ω”状回曲构造直接控制着矿体和岩层的空间分布,而且金矿化主要位于“Ω”状回曲构造的走向褶曲核部。

Sidaogou gold deposit is locatedc in Dandong,Liaoning Province,which is a migmatic hydrothermal stratabound ore deposit.The host rocks of the ore bodies,the Gaixian Formation of Liaohe Group,are a medium grade metamorphosed rock of the Early Proterogoic.The boundaries between the ore bodies and the host rocks are not clearly seen.The Ω-type structures strictly control the special disctribution of the ore bodies and their host rocks.The gold mineralization is mainly in the core area of the dip folds of the Ω...