贵州省修文县石炭系小山坝铝土矿矿床地质特征

Geological Characteristics of Xiaoshanba Bzuxite Deposit in Carboniferous System of Xiuwen,Guizhou

小山坝铝土矿床位于贵州省修文县南部与白云区接壤区域,区域构造位置位于铁厂复背斜与都拉营复向斜过渡区的小山坝单斜区。铝土矿产于石炭系下统九架炉组,含矿系由一套粘土岩、铝土岩、铝土矿、铁质粘土岩组成,厚018.0 m。矿系底板为寒武系第三—第四统娄山关组白云岩,矿系顶板为石炭系下统摆佐组白云质灰岩、灰岩。铝土矿产于矿系中上部,呈似层状、透镜状产出,厚0.56.01 m,一般为单层矿,缓倾斜产出,铝土矿埋深0160 m,大部分区域适宜于露采。与其紧邻的有斗蓬山铝土矿。小山坝铝土矿是贵州最早发现、勘查和开发的矿床。

Xiaoshanba bauxite deposit is located in the adjacent area of south Xiuwen and Baiyun in Guizhou,the regional structure situated in Xiaoshanba single slant area where is the transition area of Tiechang anticlinorium and Dulaying synclinorium.Bauxite occurred in Jiujialu formation of lower Carboniferous system,the ore bearing system is made up of a series of clay rock,bauxite,bauxite deposit and ferriferious clay rock,the thickness is om to 18.0 m.