云南某锡矿床地质特征及找矿方向

Geological Characteristics and Prospecting Direction of One Tin Deposit in Yunnan Province

云南某锡矿床赋存于前震旦系昆阳群美党组板岩、大龙口组碳酸盐岩以及花岗岩裂隙破碎带中,控矿构造为断裂,有利岩体为花岗岩。地表出露风化残积坡积型砂锡矿,深部原生矿石主要为矽卡岩型、多金属-硫化物型锡矿石,由于以往工程控制较浅,深部具有较大找矿潜力。

One tin deposit in Yunnan Province occurred in the slate of Meidang Formation,Dalongkou Formation carbonate rock and granite fracture zone of the Presinian Kunyang Group.The ore-controlling structure is faulted and the favorable rock mass is granite.The weathered residual slope-shaped sand tin ore is exposed on the surface,and the primary ore in the deep part is mainly skarn type and polymetallic sulfide type tin ore.Due to the shallow engineering control in the past,the deep ore has great prospecting potential.