摘要
福泉白马山铝土矿是凯里—黄平铝土矿成矿带内的典型沉积型铝土矿矿床之一.对该铝土矿地质特征及控矿因素系统分析得出:矿体赋存于二叠系阳新统梁山组,呈似层状、透镜状产出于下奥陶统桐梓组古侵蚀面之上;矿石主要矿物成分为一水硬铝石,主要有致密状、碎屑状及豆鲕状三种矿石类型;赋矿地层、构造条件、古气候条件、岩相古地理条件等对铝土矿的形成有明显控制作用.
Abstract
The Baimashan bauxite deposit in Fuquan is one of the typical sedimentary bauxite deposits in the Kaili-Huangping bauxite mineralization belt.A systematic analysis of the geological characteristics and con-trolling factors of bauxite deposits in the area shows that:the ore body is located in the Liangshan Formation of the Yangxin Series of the Permian,appearing as a layered and lens shaped deposit on the ancient erosion surface of the Tongzi Formation of the Lower Ordovician.The main mineral composition of the ore is dia-spore,which mainly includes three types of ore:dense,fragmented,and pisolitic.The formation of bauxite is significantly controlled by factors such as ore bearing strata,structural conditions,paleoclimatic condi-tions,and lithofacies paleogeographic conditions.
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