Analysis on ore-controlling structure of Banmiaozi gold deposit in Huadian,Jilin Province
According to the geological information of gold orebody exposed by existing mining and prospecting projects,the ore-controlling structure characteristics of Banmiaozi gold deposit in Huadian are analyzed,and the controlling effect of fault struc-ture on gold orebody is summarized.Gold-bearing quartz veins are strictly controlled by nww-trending compression-torsion faults,the ore body is characterized by gentle undulation both horizontally and vertically,the extension is bigger than the extension,and the lateral volt is not obvious.The mineralization zones can be vertically classified into three categories:shallow,middle,and deep,based on the variations in orebody scale,occurrence,type,and grade.The orebody has a trend of changing from net vein and fine vein to relatively stable thick vein and large vein in vertical direction,the width and grade of ore body tend to change from larger to smaller,and the alteration minerals of wall rock change from medium-low temperature minerals to medium-temper-ature minerals.The deposit should be located in the transitional position from middle-shallow structure to middle-middle struc-ture.The deep part of the deposit should have good prospecting prospect,but the reverse dip of vein should be paid attention to.
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万方数据
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