贵州修文比例坝铝土矿矿床地质地球化学特征及其意义

Geological Geochemical Characteristics and Significance of Bauxite Deposit in Xiuwen Proportional Dam,Guizhou Province

修文比例坝铝土矿床位于黔中—川南铝土矿成矿带之修文铝土矿矿带,属于古风化壳沉积型矿床,是近年黔中地区发现的又一中型铝土矿床。铝土矿含矿岩系为下石炭统九架炉组,矿床位于寒武系中上统娄山关群白云岩侵蚀面上。现今对沉积环境、矿床成因、物质来源和成矿模式等方面研究较深,矿床地球化学相关研究较少,通过研究与区域铝土矿进行系统对比研究,总结区域铝土矿成矿规律,,对指导区域铝土矿勘查实践具有重要的意义。

The Xiuwen bauxite deposit is located in the Xiuwen bauxite belt of the central Guizhou and southern Sichuan bauxite ore-forming belt,which belongs to the paleo weathered crust deposit,and is another medium-sized bauxite found in the middle of Guizhou province in recent years.Bauxite ore bearing rocks of the lower Carboniferous nine furnace,deposit is located in the middle upper Cambrian dolomite of Loushanguan group erosion surface.Nowadays,the research on the sedimentary environment,the genesis of the deposit,the source of the material and the metallogenic model is very deep,but the related research on the geochemistry of the deposit is less.It is of great significance to guide the practice of the bauxite exploration in the region by studying the systematic comparison of the bauxite in the region and summarizing the metallogenic regularity of the regional bauxite.