内蒙古阿拉善左旗查干德日斯铜(金)矿化地质特征及找矿前景

Geological characteristics and prospecting potential of the copper(gold)mineralization in Chaganderisi area,Alxa Left Banner,Inner Mongoli

通过对查干德日斯铜(金)矿区地质地球化学勘查工作,区内发现铜矿体1条、铜(金)矿化体1条、铜矿化蚀变带8条。铜(金)矿化体均赋存于NEE向、NNW向断裂破碎带内,且以NEE向为主;矿化与褐铁矿化石英脉密切共生,伴随明显的硅化、钾化热液蚀变。认为矿区Cu-Au-Ag原生晕组合异常明显,与断裂构造套合良好;铜(金)矿化受构造控矿特征明显,热液充填-交代作用强烈,初判为热液充填交代型矿床。矿区深部矿成矿地质条件优越,找矿前景良好。

Through the geological and geochemical exploration in Chaganderisi copper（gold）mining area,one copper body,one copper（gold）mineralization body and eight copper mineralization alteration zones have been found in this area.The copper（gold）mineralization hosted in NEE and NNW-trending tectono-clastic zones（mainly in NEE-trennding）and is closely associated with limonitized quartz veins.Silicification and potassium alteration are obvious.Also obvious is Cu-Au-Ag integrated geochemical anomaly in the primary halo and structure control on the Cu（Au）mineralization with strong hydrothermal filling-metasomatism.The anmly is fit well with ore-controlling structures.In the study area tectonic-hydrothermal activity is strong,mineralization information abundant,geochemical anomly obvious,deep ore body develops and ore prospecting mark clear suggesting the metallogenic condition is superior and with potential prospect here.