This paper presents statistical analyses and spatial interpretations of the rare earth elements (REE: La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu) distributions using geochemical database of soil compositions, and highlights future research needed in the field of REE in Cameroonian soils. Raster maps which depict spatial distributions of individual REE by the interpolation of uni-element data were carried out on the REE data. Rare earth elements were investigated in 604 soil samples from 163 Cameroonian profiles. However a wide range of natural variability in rare earth element contentsincluding the REE, LREE and HREE median content are relatively high (297.42 mg/kg, 275.11 mg/kg and 22.31 mg/kg, respectively) compared to those reported in soils from other parts of the world. The decreasing order of the REE contents in the Cameroonian soils is: Andosols > Ferralsols > Nitrisols > Plinthosols > Umbrisols > Gleysols > Vertisols > Lixisols. On the other hand, the soils developed on alkaline igneous rocks usually show great or high REE contents, ranging from 678.73 to 1148.02 mg/kg, whereas on limestones the REE contents vary from 152.48 to 1927.10 mg/kg. The soils from igneous rocks show lowe REE contents (24.35-312.59 mg/kg). In decreasing order, the REE contents are: Ce > Nd > La > Pr > Sm > Dy > Gd > Yb > Er > Tb > Eu > Ho > Lu ≥ Tm. The data presented here result from the first national-wide survey of REEs in Cameroonian soils. Ours results offer the most detailed study of surface geochemistry of REEs on Cameroonian soils and help in expanding the limited knowledge available on these elements in Cameroonian soils. However, further research is warranted to explore the strongly zone of REE contents. This will allow evaluating the potential feasibility of rare earth elements project: tonnage, ore grade (%), ore value and basket price.

本文利用土壤地球化学数据库，对稀土元素（稀土元素：稀土，镧，铈，Pr，钕，S 、,、 G，T，T，Dy，Ho，Er，T 、,、 Y和Lu）的分布进行了统计分析和空间解释。组成，并重点介绍了喀麦隆土壤稀土元素研究领域中需要进行的未来研究。在REE数据上绘制了通过映射单元素数据来描述各个REE的空间分布的栅格图。对来自163个喀麦隆剖面的604个土壤样品中的稀土元素进行了研究。但是，与其他地区的土壤相比，稀土元素含量（包括REE，LREE和HREE中位数）的自然变化范围较大（分别为297.42 mg / kg，275.11 mg / kg和22.31 mg / kg）。世界的。喀麦隆土壤中REE含量的降序为：雄激素>铁盐>硝酸盐>邻苯二酚>阔豆酚>甘露醇> Vertisols> Lixisols。另一方面，在碱性火成岩上发育的土壤通常显示出较高或较高的稀土元素含量，范围为678.73至1148.02 mg / kg，而在石灰石上，稀土元素含量范围为152.48至1927.10 mg / kg。火成岩土壤的稀土元素含量较低（24.35-312.59 mg / kg）。稀土元素的含量递减顺序为：Ce> Nd> La> Pr> Sm> Dy> Gd> Yb> Er> Tb> Eu> Ho> Lu≥Tm。此处提供的数据来自喀麦隆土壤中稀土元素的首次全国性调查。我们的研究结果对喀麦隆土壤中稀土元素的表面地球化学进行了最详细的研究，并有助于扩大喀麦隆土壤中这些元素的有限知识。但是，有必要进行进一步的研究以探索稀土元素含量的强区。这将有助于评估稀土元素项目的潜在可行性：吨位，矿石品位（％），矿石价值和一揽子价格。