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务川瓦厂坪铝土矿床是近年探明的大型矿床,332+333资源量4397万吨。地球化学研究显示,矿床中Al2O3与TiO2含量成正相关关系,与SiO2含量成负相关关系;硫同位素组成属于沉积岩范畴,总体显示出变化范围大(-29.20‰～+12.40‰),反映出复杂的成矿环境和轻重硫同位素的多次分离;不同岩、矿石的稀土总量(ΣREE)含量变化大,LREE/HREE均大于1,显示轻稀土较富集;铝土矿层中,土状铝土矿稀土元素含量相对高,致密块状铝土矿含量相对低,稀土元素含量与矿石质量总体呈正相关关系。铝土矿层及志留系韩家店组的稀土总量含量较接近。矿床成因属古风化壳沉积型。
Wuchuan watts Ping bauxite deposit is proven in recent years, large deposits, 332 +333 43.97 million tons of resources. Geochemical studies show that there is a positive correlation between Al2O3 and TiO2 content in the deposit and a negative correlation with SiO2 content. The sulfur isotope composition belongs to the sedimentary rock area and generally shows a wide range of variation (-29.20 ‰ to + 12.40 ‰), reflecting a complex Mineralization environment and light and heavy sulfur isotopes. The contents of ΣREE in different rocks and rocks varied greatly, and the LREE / HREE values were greater than 1, indicating that the light rare earths were enriched. Among the bauxite layers, The contents of rare earth elements in the earth are relatively high, the contents of the dense lump bauxite are relatively low, and there is a positive correlation between the contents of the earth elements and the ore quality. The contents of rare earth elements in the bauxite layer and the Silurian Hanjiadian Formation are similar. The genesis of the deposit belongs to the ancient weathering crust depositional type.