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辽南地区是我国重要的金矿化集中区 ,区内产出大、中、小型金矿 2 0余处。简要叙述了猫岭、五龙、四道沟、岫岩、新房 5个金矿床的地质概况。讨论了它们的铅同位素组成并划分为两大类 :第一类具有正常铅的同位素组成 ,其成矿年龄与辽河群变质年龄相当 ;第二类具有异常铅的同位素组成。在铅构造模式图上 ,上述 5个金矿床铅同位素组成具有壳源铅的特点。
The south of Liaoning Province is an important gold mineralization concentrated area in our country, producing more than 20 large, medium and small gold mines in the area. Briefly described the geological profiles of five gold deposits in Cat Ridge, Wulong, Sidaogou, Xiuyan and Xinfang. Discussed their Pb isotopic compositions and divided them into two broad categories: the first is of isotopic composition with normal Pb, and the metallogenic age is comparable to the metamorphic age of the Liaohe Group; the second is isotopic composition with abnormal Pb. In the pattern of lead tectonics, the lead isotopic compositions of the above five gold deposits have the characteristics of crust-derived lead.