广西龙州县科甲铝土矿地质特征及成因分析

Guangxi Longzhou Kejia Geological Characteristics and Genesis of Bauxite

科甲地区铝土矿是由多阶段、多因素形成的岩溶堆积型铝土矿,矿源层为上石炭统都安组底部的沉积铝土矿层或铁铝岩层。文章通过对科甲铝土矿地质特征及矿源层特征初步探讨了矿区铝土矿成因,认为岩溶作用是堆积型铝土矿形成的必要条件,矿源层及其上下岩层经长时间岩溶而发生崩解、坍塌,形成初始堆积体,在地表再经淋滤、富集,形成具有工业价值的岩溶堆积型铝土矿床。

Bauxite of Kejia region is the multi-stage, multi-factor accumulation-type karst accumulation bauxite, ore source beds are safe for the Upper Carboniferous sedimentary bottom group almandine bauxite layer or rock. The articles discussed geological characteristics and source characteristics of Kejia bauxite ore, believe that role is accumulative bauxite karst formation of the necessary conditions, ore source layer and its upper and lower strata occur after long karst collapse, collapse, forming the initial accumulation body, on the surface and then by leaching, enrichment, karst formation of industrial value accumulation bauxite bed.