西藏下尼弄巴铜铅锌矿床地质特征及成矿条件  

Geological characteristics and geological conditions of Xianinongba in Tibet Autonomous Region

作　　者：张春茂[1] 肖渊甫[1] 李泽[1] 郭龙[1] 徐超[1] 

机构地区：[1]成都理工大学,四川成都610059

出　　处：《四川有色金属》2012年第2期27-31,39,共6页Sichuan Nonferrous Metals

摘　　要：下尼弄巴铜铅锌矿床位于西藏自治区那曲地区申扎县,属冈底斯成矿带中部,措勤-纳木错弧间盆地西段,其喜山期的中酸性侵入体发育,岩浆活动作用强烈,为成矿作用提供了丰富的物源和热源条件,区域构造控制着矿区各种地质体的分布和产出位置,并由此派生出一系列的次级断裂构造带,起到了导岩、导矿的作用。矿区出露新近系上新统乌郁群(N2wy)地层的第一段安山岩中的破碎带,为成矿作用提供了运移通道和容矿场所,矿石以浸染状为主,次为脉状、致密块状构造为主,其成矿时代为喜山期,矿床类型为热液脉型铜铅锌矿床。Xianinongba Cu-Pb-Zn deposits is located in the central Gangdise metallogenci belt,the Himalayan period in development of acidic intrusive bodies,magmatic activity strong role,for mineralzation provides a rich source of things and heat source conditions.The regional tectonic control the distribution and output location of the mine a variety of geological bodies,mining area of the exposed on the new series of neogene strata YuQun （N2wy） the first spell of rocks fracture zone, for mineralization provides migration channel and let mine site, ore to dip shape is given priority to, time for pulse shape, dense block structure is given priority to, its metallogenic epoch in Himalayan period, the copper deposit types for hydrothermal vein type Cu-Pb-Zn deposits.

关 键 词：铜铅锌矿床 地质特征 成矿条件 下尼弄巴 

分 类 号：P618.1[天文地球—矿床学]