CAJ | 학술논문

蚀变带位于晚元古代青白口系钓鱼台组石英砂岩下部与晚太古代变二长花岗岩接触部位,与下伏变二长花岗岩呈断层接触关系,与石英砂岩呈渐变过渡接触关系。蚀变带呈断续出现,宽10～20 m,长200～800 m,走向北东50°～60°。蚀变矿物主要为硅化石英,少量重晶石化、绢云母化、黄铁矿化,拣块分析品位Au：0.33×10-6。其赋存层位、蚀变矿物组合与区域上大型金矿床金英金矿相似,通过二者对比分析认为,本区具备金英式金矿形成的地质条件,找矿前景较好。
식변대위우만원고대청백구계조어태조석영사암하부여만태고대변이장화강암접촉부위,여하복변이장화강암정단층접촉관계,여석영사암정점변과도접촉관계。식변대정단속출현,관10～20 m,장200～800 m,주향북동50°～60°。식변광물주요위규화석영,소량중정석화、견운모화、황철광화,간괴분석품위Au：0.33×10-6。기부존층위、식변광물조합여구역상대형금광상금영금광상사,통과이자대비분석인위,본구구비금영식금광형성적지질조건,조광전경교호。
The alteration zone is located in contact position between the lower part of the late Proterozoic Qb Diaoyutai Formation quartz sandstone and the late Archean metamorphic monzonitic granite,showing the fault contact relationship with the underlying metamorphic monzonitic granite,the gradational contact relationship with the quartz sandstone.The alteration zone appear intermittently,10~20 m wide,200~800 m long strike NE 50°~60°.The alteration mineral is mainly silicified quartz,a little baritization,sericitize,pyritization,chip analysis grade Au：0.3x10-6.Its bearing strata,alteration mineral combination are similar to the large gold deposit,Jinying gold mine;by the comparative analysis,it is considered that the study area has the geological conditions of Jinying type gold mine,and better exploration prospects.