桂西沉积型铝土矿含矿岩系特征及高密度电阻率法应用

The characteristics of mineral deposits and high density resistivity applied to detect sedimentary bauxite of western Guangxi

桂西地区沉积型铝土矿含矿岩系与黔东南地区一样,普遍有"煤层、泥岩层、炭质页岩层-铝土矿层"物质组成特征。含矿岩系中的煤层、泥岩层及炭质页岩层相对周围完整灰岩地层属低阻特征。采用高密度电阻率法,通过探测煤层、泥岩层、炭质页岩层等与沉积型铝土矿相关的地质信息,圈定含矿层空间分布特征,从而实现间接找矿目的。

There are generally ＂coal seam,mudstone layer,carbon shale-bauxite layer＂material composition characteristics of the orebearing rock series in the cinnamic deposits as in the western Guangxi.The resistivity of the coal seam,mudstonelayer and carbonaceous shale strata in the rock series are relatively low compared with that of complete limestone stratum.The geological information of coal and mudstone layer,carbonaceous shale which are related to the sedimentary bauxiteare obtained by high density resistivity method and the space distribution features of ore-bearing bed are delineated,which provided the information forindirect prospecting purpose are discussed.