云南镇康县放羊山铅锌矿床特征及成因浅析

THE FEATURE AND A PRELIMINARY GENESIS ANALYSIS OF FANGYANGSHAN PB-ZN DEPOSIT IN ZHENKANG,YUNNAN

云南镇康放羊山铅锌矿,矿体呈不规则扁豆状、似层状赋存于北东向断裂及其旁侧次级构造破碎带中,构造控矿比较明显。矿体近矿围岩为上寒武统柳水组(∈3l)条带状灰岩。矿体矿化不均匀,围岩蚀变发育。矿床成因属中～低温热液充填交代型铅锌矿床。

In Fangyangshan Pb-Zn deposit in Zhengkang,Yunnan,the orebody is irregular lenticular,stratoid in NE fault zone and the side secondary structure fracture zone,the ore control of structure clear.The wall rock near orebody is Upper Cambrian Liushui Formation（∈ 3 l ）banded limestone.The metallogenesis is uneven,wall rock alteration developed.It is a middle-low T filling metasomatic Pb-Zn deposit in genesis.