乌斯河铅锌矿床矿物成分特征

The Mineral Composition Characteristics of Wusihe Pb-Zn Deposit

川滇黔地区乌斯河铅锌矿床的被发现,并随着勘探的程度加深,逐渐成为川滇黔地区的大型矿床之一。本文通过对乌斯河铅锌矿床的矿物的镜下观察,得出了乌斯河铅锌矿床的主要金属矿物为闪锌矿、方铅矿、黄铁矿、硫锑铅矿和白铁矿等;非金属矿物主要为方解石、白云石和沥青等。对乌斯河矿床的成矿温度与典型MVT型铅锌矿床进行了对比,得出了其成矿温度应该为中-低温的成矿条件。并且对其各个成矿期的矿物加以分析将其矿化期分为一个热液期和三个矿化阶段,其中三个矿化阶段分别是成矿早阶段、成矿主阶段和成矿晚阶段。

Wusihe Pb-Zn deposit in Sichuan-Yunnan-Guizhou area has been discovered and gradually become one of the large deposits in sichuan-Yunnan-Guizhou area with the deepening of exploration.Through the microscopic observation of the minerals in the Wusihe lead-zinc deposit,it is concluded that the main metallic minerals in the Wusihe lead-zinc deposit are sphalerite,galena,thioantimony lead and white iron ore.Nonmetallic minerals are mainly calcite,dolomite and bitumen.The mineralized stage is divided into one hydrothermal stage and three mineralization stages by analyzing the minerals in each mineralization stage.