论贵州中部九架炉组铝矿系冲洪积扇沉积特征

Discussion of the Sedimentary Characters of Alluvial-proluvial Fan of Bauxite Series,Jiujialu Formation in Central Guizhou

通过对贵州中部石炭系九架炉组铝矿系的较系统研究,认为该套沉积物是由冲洪积作用及湖泊作用在负地形堆积而成的陆相岩系,冲洪积扇是最常见的一种冲洪积相沉积物,贵州中部大部分大型铝土矿床都是由此种沉积作用形成的扇群席状砂体经铝土矿化改造而成。

By systemic study the alluvial -proluvial fan of Bauxite series, Jiujialu formation in middle Guizhou, it＇s thought that this sediment is the continental deposit accumulated by the alluvial- proluvial process and lake process in the negative relief. The alluvial - proluviat fan is a normal kind of sediment of the alluvial - proluvial facies. Most of the big scale alumina deposit in the central Guizhou formed of the scalloped and sheetlike.