摘要
八蒙锑矿床是雷山—榕江锑矿带八蒙锑矿田中一个典型的“断裂型”锑矿床。矿床内岩性单一,矿石组分和围岩蚀变简单:辉锑矿填隙结晶,与石英一起,组成脉状辉锑矿矿石。Sb为矿石中的有用组分,伴生可综合利用的微细粒Au,有害杂质As、Pb含量少,对矿石的质量无影响。构造为主要控矿条件,包括雷公山复式背斜及近轴部的次级背斜,北东向断裂及构造裂隙等,构造的性质和特点对矿体的产出具有重要的意义。成矿物质来源于上地幔,最终于燕山期成矿。
The Bameng Sb-ore deposit is a typical 'fracture type' Sb-ore one in Bameng Sb-ore field of Leishan-Rongjiang Sb-ore belt. The lithologic feature is unitary, and ore-stone components and wall alterations are simple within the deposit. Stibnite is filled by crystals with quartz, forming vein-like stibnite ore-stones. Sb in a useful composition of ore-stones,associated with grain Au, which can be synthetically utilized, and harmful compositions-As and Pb. Pb is less contained which has no influence on ore-tone quality.
The structures are the main ore-controlling condition, including Leigongshan double entry anticlines, second-class anticlines close to the axis and fractures and structure cracks in NE direction, etc. The structure characters and features have an important significance for the occurrance of the ore body. The ore-forming materials are from the upper mantle and finally form the ore deposit in the Yanshan Period.
出处
《贵州地质》
1991年第4期302-312,共11页
Guizhou Geology
