河南新密岳村铝土矿层沉积规律及元素分布特征

Sedimentary Law and Element Distribution Characteristics of Yuecun Bauxite Deposit in Xinmi Depth,Henan Province

本区含矿岩系(石炭系上统本溪组)为一套岩溶化的不整合面之上的铁、铝、硅沉积建造。厚0.61m～55.41m,平均10.68m。,根据岩性组合不同可分为上下两段两个沉积旋回,呈渐变过渡关系。含矿岩系与铝土矿的厚度和品位均呈正相关。

The ore-bearing rock series(Benxi Formation of Upper Carboniferous) in this area is a sedimentary formation of iron, aluminium and silicon above a set of karst unconformities, Of which The thickness ranges from 0.61 m to 55.41 m, with an average of 10.68 m. According to the different lithologic assemblages, it can be divided into two sedimentary cycles of upper and lower segments, showing a gradual transition relationship. The ore-bearing rock series is positively correlated with the thickness and grade of bauxite.