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潞西上芒岗红色粘土型金矿赋存于下二叠统岩溶面之上的第三、第四系红色粘土层中 ,矿体形态受地形控制明显 ,呈似层状。品位较高 ,规模中等 ,适合于露天开采。矿体的红土化作用不彻底 ,去硅富铁铝能力低 ,常见高岭石与伊利石共生。矿石中石英、褐铁矿、粘土矿物为主要载金矿物。成矿物质来自燕山中晚期形成的中侏罗勐嘎组中段与二叠系的沙子坡组的断层接触破碎带内的卡林型金矿。在湿热条件下 ,金发生活化、迁移、富集 ,在潜水面附近成矿。
The Shangcanggang red clay-type gold deposit in Luxi County is hosted in the third and quaternary red clay layers above the Lower Permian karst surface. High grade, medium scale, suitable for open pit mining. The lateriticization of ore bodies is not complete, and the ability to go to silicon-rich Fe-Al is low. Common kaolinite and illite coexist. Quartz ore, limonite, clay minerals as the main gold-bearing minerals. The ore-forming materials come from the Carlin-type gold deposits in the fault-contact broken zone in the middle Jurassic Menggar Formation and the Permian Shazipo Formation in the late Yanshanian. In the hot and humid conditions, the gold live, migration, enrichment, mineralization near the surface of the dive.