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1研究区地质背景岫岩红旗铅锌矿区处于华北地台北缘上的辽东元古代古裂谷的内带-中央裂陷区,位于华北地台(Ⅰ级)辽东台背斜(Ⅱ级)营口宽甸古隆起(Ⅲ级)盖县宽甸基底凹陷(Ⅳ级)虎皮峪复背斜南翼。区域内岩石主要为辽河群变质岩及大面积侵入的元古代片麻状花岗岩,中生代三叠纪闪长岩、花岗闪长岩、似斑状花岗岩和侏罗纪花岗斑岩、花岗岩。
1 Geological background of the study area The Hongqi lead-zinc mine in Xiuyan is located in the inner rift zone of the Liaodong Proterozoic ancient rift on the northern margin of North China Platform and is located in the central rift zone of the Liaodongtai anticline (Grade Ⅱ) The Kuandian paleo-uplift (Ⅲ grade) Gaxian Kuandian basement depression (Ⅳ grade) Tiger skin Yu complex anticline south wing. The main rocks in the area are Liaohe Group metamorphic rocks and large-area intrusive Proterozoic gneissic granites, Mesozoic Triassic diorites, granodiorites, speckled granites and Jurassic granite porphyries and granites.