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东裙矿区火山岩既有喷溢相和爆发相,也有浅成侵入相,三者为同一岩浆演化序列的不同阶段的产物。岩石形成经历了由中性到酸性的演化,喷发形式由溢流到爆发,再到浅成侵入作用,活动强度经历了由强到弱的变化。.本区断裂构造发育,出露小规模的钙碱性花岗斑岩侵入体和大量的石英脉,同时上侏罗统又是斑岩矿床和浅成热液矿床成矿的最佳地层,该区具有良好的成矿地质条件。
The volcanic rocks in the East skirt area have both spurt-out facies and explosive facies as well as shallow intrusive facies, all of which are the products of different stages of the same magmatic evolution sequence. The formation of rocks experienced a change from neutral to acidic. The eruption forms from overflow to explosion and shallow to intrusion, and the intensity of activity experienced a change from strong to weak. The fault structure developed in this area exposed small-scale intrusions of calc-alkaline granitic porphyry and a large number of quartz veins, and the Upper Jurassic is the best strata for mineralization of porphyry deposits and epithermal deposits. The area has good geological conditions of mineralization.