The Wuzhengdao Regional Of Guizhou Province Geological Characteristics Of Bauxite And Metallogenesis Preliminary Study

The WuZhengDao regional of Guizhou province bauxite bed produced in the Upper Carboniferous strata in the DaZhuYuan Group, Chestnut is a large syncline DaZhuYuan tectonic framework of the main ore deposits, ore was bedded, lenticular ore-bearing rocks occur in the Department of the upper part of the ore mineral ingredients to a diaspore-based, chemical composition of the ore are Al2O3, SiO2, Fe2O3, TiO2, TS, LOI, ore structures are clastic texture, beans oolitic structure, crystal structure and clay powder structure, constructed a massive structure of ore, semi-earthy-like structure and dense structure, the type of semi-natural earthy bauxite ore, beans oolitic bauxite, bauxite, and debris-like dense like bauxite, iron ore industry types have low sulfur typebauxite, iron sulfur-type bauxite.Through the analysis of characteristics of bauxite ore deposit geology in DaZhuYuan conclude:GuiZhou North WuZhengDao way bauxite ore control mainly by the tectonic conditions, ancient geography, the ancient climate condition, formation conditions and into the mineral source conditions and other factors; Mineralization mainly have three types:weathering, erosion, flushing and handling function, deposition and supergene weathering the function of enrichment.Geology and metallogenic regularities of distribution:Bauxite formation and distribution of regional palaeogeography framework, lithofacies palaeogeographic pattern and syncline structure control; bauxite occurs mainly in the upper Carboniferous DaZhuYuan Group in ore bearing rock series, the upper; enrichment, distribution and metallogenic mother rock lithology, ore-bearing rock series in basement formation and mineralization period of the physiognomy of the distribution; ore with grain structure, clastic structure and bean oolitic structure; ore chemical composition content of Al2O3and A/S from the south to the north, has increased; the sources of ore-forming materials are mainly Slhj mud shale by weathering, weathering crust formed by iron aluminum.Ore-forming mechanism is the12kinds of mineralization to form a complex physical chemistry, colloid chemistry, they are to each other and mutually inhibit or promote, leading to gradually evolved into clay minerals diaspore.Ore-forming mechanism by a summary of the law and the establishment of business the right way Guizhou bauxite ore-forming pattern typical figure.