贵州独山锑矿田地质地球化学特征和构造动力热液成矿  

GEOLOGICAL AND GEOCHEMICAL CHARACTERISTICS AND TECTONO-DYNAMIC HYDROTHERMAL METALLOGENESIS OF DUSHAN ANTIMONY OREFIELD, GUIZHOU

作　　者：钱建平[1] 杨国清[1] 李少游 

机构地区：[1]桂林工学院资源与环境工程系,桂林541004

出　　处：《地质地球化学》2000年第2期56-60,共5页Geology-Geochemistry

摘　　要：独山锑矿田位于独山箱状背斜核部近倾伏端，矿床、矿体的产出严格受断裂控制，其半坡式锑矿呈脉状产于下泥盆统、志留系碎屑岩的陡倾斜断裂中；其巴年式的锑矿呈层状产于中泥盆统碎屑岩与碳酸盐岩之间的层间滑动带中。成矿温度低，矿石组分和围岩蚀变简单，锑主要来源于下伏地层，硫主要来源于赋矿地层．成矿流体主要为大气降水，构造动力成矿作用导致锑矿床的形成，矿床类型为一典型的构过动对热液矿床。The Dushan antimony orefield is situated on the Dushan box anticline near its plunging crown. The deposits are strictly controlled by fractures. The Banpo-type antimony deposits occur as veins in steep-dippingfractures in the tower Devonian Series and Silurian System. The Banian-type antimony deposits occur asstratoid orebodies in interlaye-gliding fractures in the Middle Devonian Series. With the low ore-formingtemperature (115-210℃), the ore composition and wall-rock alteration are simple. Antimony came mainlyfrom the underlying strata. Sulfur came mainly from the host rock. Hydrogen and oxygen isotope data indicate the fluids were derived from meteoric water. The deposits were formed by tectono-dynamic processes,belonging to tectono-dynamic hydrothermal deposits.

关 键 词：锑矿床 地球化学特征 构造动力 热液成矿 

分 类 号：P618.660.4[天文地球—矿床学] P618.660.5[天文地球—地质学]