【摘要】 河南熊耳山沙沟矿床是新探明的一个大型银铅锌矿床。文章首次对其矿石矿物进行了系统的研究,通过对大量矿石光薄片观察、等离子质谱和电子探针分析,表明具有工业意义的硫化物主要有方铅矿、贫铁闪锌矿、黄铜矿,银矿物主要有自然银、深红银矿、辉银矿、硫锑铜银矿、含银黝铜矿,它们与硫化物共生,多沿方铅矿、贫铁闪锌矿等颗粒间或者裂隙产出。这些研究结果不仅有助于了解矿化作用过程,而且为矿床评价、组分综合利用和选冶提供重要依据。更多还原

【Abstract】 The Shagou ore deposit is a large-size silver-lead-zinc deposit in west Henan Province. Based on a systematic study of a considerable number of polished ore sections as well as ICP-MS and electron microprobe analyses, the authors have found that the main sulfide minerals include galena, iron-poor sphalerite and chalcopyrite, whereas silver minerals are composed chiefly of native silver, pyrargyrite, argentite, polybasite, and argentiferous freibergite. Associated with sulfides, these silver-bearing minerals occur in cleavages, fissures or intergranular space of galena. The data obtained by the authors are of great significance in understanding the ore-forming process, and also provide important information for integrated evaluation of the deposit and for ore dressing and smelting.更多还原