山东省平度市大庄子金矿区黄铁矿、方铅矿与金的共生关系研究

通过对山东省平度市大庄子金矿区黄铁矿、方铅矿三个蚀变阶段特征研究,发现金矿化主要发生在第二阶段,强烈的石英-黄铁矿-碳酸盐化与金矿化的关系最为密切。金多数以包体的形式赋存于黄铁矿等金属硫化物中,并且在黄铁矿、方铅矿、闪锌矿等矿物共同产出时更有利于金的富集。研究认为石英和黄铁矿组合以及黄铁矿、黄铜矿、方铅矿、闪锌矿的组合可作为金的富集指示性矿物组合,伴生矿物之中方铅矿含金性最好。方铅矿、黄铜矿、闪锌矿和磁黄铁矿呈细脉状、网脉状、斑杂状产于含金石英脉和团块状黄铁矿的裂隙中,研究发现细脉状较团块状黄铁矿含金性要好。

THE RESEARCH ON SYMBIOSIS BETWEEN PYRITE、GALENA AND GOLD IN DAZHUANGZI GOLD DEPOSIT,PINGDU CITY,SHANDONG PROVINCE

Through the pyrite,galena three alteration stage characteristics research,grasps the pyrite,galena and gold symbiotic relationship.gold mineralization mainly occurs in the second phase,a strong quartz — pyrite — carbonates alinization and gold mineralization is most closely relationship.a plurality of the form of gold occurrs in pyrite and other metal sulfides,and in pyrite,galena,sphalerite and other minerals common output is more conducive to the enrichment of gold.the study found that quartz and pyrite,chalcopyrite,galena and pyrite,sphalerite combination can be used as indicative of the enrichment of gold mineral assemblages,galena is the best gold content of accompanying minerals gold.Galena,sphalerite and chalcopyrite,magnetic pyrite is fine vein,net vein,spot noise in shape with auriferous quartz vein and crumb pyrite in the crack,the study found that the fine vein a crumb pyrite better gold content。