372023年第4期中国非金属矿工业导刊总第160期【矿产资源】广西南丹里湖八角当饰面用灰岩矿地质特征及开发利用前景奉贻龙(广西壮族自治区第一地质队，广西桂林541100)【摘要】广西南丹县里湖八角当矿区灰岩矿是一种天然优质的饰面石材矿，矿体赋存于上石炭统马平组中，呈层状产出，产状基本与地层一致，产出形态稳定，属台地相碳酸盐岩沉积型矿床；赋矿岩性为生物碎屑粉晶微晶灰岩，矿石经切割打磨后色泽均匀，光泽度高，属中高档饰面石材，广泛适用各行各业建筑内外表面装饰，矿山开发利用前景良好。【关键词】饰面用灰岩矿；地质特征；开发利用前景；广西南丹县【中图分类号】P619.225【文献标识码】A【文章编号】1007-9386(2023)04-0037-03GeologicalCharacteristicsandDevelopmentUtilizationProspectofLihuBajiaodangFacingLimestoneDepositinNandanCounty,GuangxiFENGYi-long(FirstGeologicalTeamofGuangxiZhuangAutonomousRegion,Guilin541100,China)Abstract:ThelimestonemineinLihuBajiaodangMiningAreaofNandancounty,Guangxiisakindofnaturalhigh-qualitybuildingfacingstone.TheorebodyoccursintheupperCarboniferousMapingFormation,andislayered,withtheoccurrencebasicallyconsistentwiththestratum,andtheoccurrenceformarerelativelystable,belongingtotheplatformfaciescarbonatesedimentarydeposit;Theorebearinglithologyisbioclasticpowderymicrocrystallinelimestone.Theorehasuniformcolorandhighglossaftercuttingandpolishing.Itisamediumandhigh-gradefacingstoneandwidelyusedfortheinternalandexternalsurfacedecorationofbuildingsinallwalksoflife.,andtheprospectsforminedevelopmentandutilizationaregood.Keywords:facinglimestone;geologicalfeatures;developmentandutilizationprospects;Nandancounty,Guangxi饰面用灰岩是一种天然的建筑材料岩石[1]，主要用于建筑物内外表面装饰，亦可作为石雕石刻品。里湖八角当饰面用石灰岩矿位于南丹县城北东25°方位，直距约35km的里湖乡八角当屯一带。矿石质地温润、花色端庄大方，装饰性能优良。本文全面总结了矿区地质特征、矿床地质特征、矿床成因与找矿标志等，研究了矿石的加工技术性能，分析了开发利用前景，旨在对本区域饰面用灰岩矿的勘查与开发提供借鉴。1区域地质背景矿区区域上位于右江再生地槽(V)的桂西坳陷(V1)之南丹断褶带(V1-3)中，处于南丹—河池大断裂带...
