摘要
柬埔寨北东部蒙多基里省的上川龙高原分布大面积的红土化玄武岩;铝土矿含矿层为第四系风化壳中的含砾红土层;矿石为三水铝石;Ga和Sc作为伴生元素,相对富集;稀土元素特征显示铝土矿矿石是在表生氧化条件下沉积作用形成的;矿石在0.787~1.000mm粒级各元素含量出现明显拐点,可以作为评价矿石质量优劣的一个参考粒级。
Cambodia north east over the base in Krong of Mondoul Kiri Province large areas of laterization basalt plateau distribution. Bauxite ore-bearing bed for quaternary red weathering crust of conglomeratic soil layer, ore for gibbsite. The Ga and Sc relative as associated elements, characteristics of rare earth elements suggest that bauxite ore is formed by sedimentation in supergene oxidation conditions. Ore between 0.787~1.000 mm fraction content is a significant turning point, it can be used as ore quality grade a reference.
引文
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