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辽宁省东盛锌-铅矿产在元古宙辽河群大石桥组条带状含云母大理岩中,主要由脉状和层纹状的闪锌矿和方铅矿组合成锌-铅矿床。从空间上分析,组成东盛锌—铅矿的脉状矿体和层纹状矿休均受同一断裂构造和同一岩石地层组合控制,两者呈渐变过渡关系,矿石建造基本相似。通过对两种不同矿石的闪锌矿、黄铁矿的Ga/In和Co/Ni值及其富集系数,Zn/Cd值、Zn/Fe值、Sb/As值、Sb/Bi值对比,均显示了岩浆—热液成矿的特点。同时,根据矿石、近矿围岩和花岗岩的稀土配分,表明其成矿物质源于多源,成矿温度在200—400℃之间。上述结果表明,东盛锌-铅矿应属层控后生岩浆期后中温热液矿床。
The Dongsheng zinc-lead deposit in Liaoning Province is composed of banded and mica-shaped marble in the Dashiqiao Formation of the Proterozoic Liaohe Group and is composed of sphalerite and lamellar sphalerite and galena combined into a zinc-lead deposit. Spatially, both the vein-shaped ore bodies and the layered rocks that make up the Dongsheng zinc-lead ore are controlled by the same fault structure and the same lithostratigraphic assemblage. The transitional relationship between the two is gradual and the ore formation is basically similar. By comparing the Ga / In and Co / Ni values and the enrichment coefficients, Zn / Cd values, Zn / Fe values, Sb / As values and Sb / Bi values of sphalerite and pyrite from two different ores, All show the characteristics of magmatic hydrothermal mineralization. At the same time, according to the distribution of rare earths in ore, near ore and granite, it indicates that the ore-forming materials originated from multi-source and the ore-forming temperature is between 200-400 ℃. The above results indicate that the Dongsheng zinc-lead ore belongs to the post-epithermal magmatism epithermal deposit.