云南省砚山县红舍克铝土矿床地质特征、找矿标志及资源潜力分析

通过对云南省砚山县红舍克铝土矿成矿地质特征研究,认为该区沉积型铝土矿主要经历了以下三个阶段：（1）基岩升隆、剥蚀,含铝矿物风化堆积;（2）切割、夷平和喀斯特化,含铝矿物迁移、脱硅,形成红土化堆积;（3）沉积、海解、去硅、铝土富集.而堆积型铝土矿床主要为沉积型铝土矿经近代岩溶化阶段所形成的次生淋滤矿床.地层层位、古侵蚀面、褶皱构造及地形地貌是该区寻找铝土矿的重要标志.该区铝土矿资源前景乐观.

Geological characteristics, prospecting indicators and resource potential analysis of Hongsheke bauxite deposit in Yanshan county, Yunnan

The research on the ore forming geological characteristics of the Hongsheke bauxite deposit in Yanshan county, Yunnan province, shows that the sedimentary bauxite deposit in the area mainly experienced three ore forming stages, namely, weathering and accumulation of aluminum bearing minerals from denudation after the basement rising, and then, desilication and laterization of the aluminum bearing mineral and conglomeration through incising and leveling and karstification and finally aluminum clay enrichment through sedimentation and seawater hydrolysis and desilication process, while accumulated bauxite deposit developed through secondary leaching and sedimentation during latter-day karstification. Stratum layer, fossil erosion surface, folded structure, terrain and physiognomy are all important prospecting indicators in this area. The outlook for the mineral resource is optimistic.