贵州瓮安县老虎洞磷矿矿石物质组分特征研究

Study on the Ore Composition Characteristics of the Laohudong Phosphate Mine in Weng'an County,Guizhou Province

贵州瓮安县老虎洞磷矿矿床类型属海源胶体化学聚集—盆内颗粒再积成因,目前处于矿山基建阶段。在总结前人科研成果和找矿评价成果的基础上,应用矿石薄片、扫描电镜和化学分析等对老虎洞磷矿矿石的物质组分进行了研究,论述了b矿层和a矿层主要矿石矿物和主要脉石的矿物学特征,包括其结晶形态、粒度、物理光学性质和产出特征等;闸明了矿石主要矿物成分与主要化学组分的关系。为进一步研究矿石的加工和工业利用途径提供了基础资料。

The Laohudong phosphate ore deposit in Weng'an County,Guizhou Province belongs to the origin of chemical aggregation of Marine colloid and reaccumulation of particles in the basin,and is currently in the stage of mining infrastructure.On the basis of summarizing previous scientific research and prospecting evaluation,the ore composition of the Laohudong phosphate ore was studied using ore thin sections,Scanning Electron Microscopy(SEM),and chemical analysis.The mineralogical characteristics of the main ore minerals and gangue in the b and a ore layers were discussed,including their crystal morphology,particle size,physical and optical properties,and petrographic characteristics.The relationship between the main mineral components and the main chemical components of the ore is discussed.This study provides basic data for further study of ore processing and industrial utilization.