山西平陆县东部与铝土矿共伴生的“三稀”矿产特征

石炭系铁铝岩段中广泛分布的铝土矿属古风化壳型铝土矿,古风化壳型铝土矿常共伴生着"三稀"矿产,但含量普遍较低,而整个铁铝岩段中"三稀"矿产平均含量均高于共伴生矿产综合利用指标的只有平陆县东部地区,且局部有富矿。文章阐述了平陆县东部地区的区域地质背景、成矿环境,收集了前人对该区"三稀"矿产的研究资料,利用多个勘查区详实的采样分析数据,说明该区与铝土矿共生的"三稀"矿产种类、含量及赋存形式,指出该区"三稀"矿产有较好的利用前景,为该区铁铝岩段中"三稀"矿产成矿环境研究和今后勘查找矿工作提供参考。

Characteristics of three types of rare earth mineral resources associated with bauxite deposit in the eastern Pinglu, Shanxi

The bauxite which was widely distributed in Carboniferous iron and aluminum rock member is palaeo-residuum bauxite deposit. The three kinds of rare earth mineral resources are commonly associated with the palaeo residuum bauxite deposit, but the concentration is generally low, but relatively highed in the eastern part of Pinglu, locally enrichment. On the basis of studying regional geology, metallogenic environment in combination with the previous exploration data of three types of rara earth mineral resources, the types, contents and occurrence forms of three types of rara earth mineral resources associated with bauxite in this area were described in detail by analysis of sampling data in many exploration areas. Finally it is pointed out that there is a good prospecting prospect for the rara earth mineral resources. The study result provides a good reference for the study of metallogenic environment and prospecting and exploration work for rara earth resources in this area.