黔西南高砷煤成因研究  

Metallogenetic factors of high-As coal in southwestern Guizhou

作　　者：谢宏[1] 聂爱国[1] 

机构地区：[1]贵州大学资源与环境工程学院,贵州贵阳550003

出　　处：《煤田地质与勘探》2007年第6期10-14,共5页Coal Geology & Exploration

基　　金：教育部访问学者基金项目(教技厅函[2001]3号);贵州省教育厅科研项目(黔教科2001016)

摘　　要：根据野外地质特征,结合微量元素和稀土元素分析结果,探讨了黔西南高砷煤的成因。高砷煤的形成,受岩浆岩、岩性、岩相古地理以及地质构造等诸多控矿因素的制约。高砷煤的形成经历了矿源层形成、龙潭煤系形成、含矿热液形成以及沉积-改造成矿等4个阶段。Based on field geological properties and chemical analysis results, the metallogenetic factors and genesis of high-As coal in southwestern Guizhou Province are disscused in this paper. According to the analysis of ore-forming geological factors, the formation of the high As coal was restricted by various ore-controlling factors, such as the magmatic rock factors, the sedimentary facies and paleogeographic factors, the lithological factors, the structure factors, and so on. It can be considered that the enrichment of arsenic may be divided into four stages： stage of the ore source bed formation, stage of the Longtan coal-bearing rock series formarion, stage of the ore-bearing hydrothermal formation, stage of the high arsenic coal deposit formation.

关 键 词：高砷煤 成因 黔西南 

分 类 号：P618.11[天文地球—矿床学]