Abstract Rare earth elements belong to the category of strategic metals. The largest deposits of these strategic raw materials are associated with alkali-carbonatite formations. The largest alkali-carbonatite complexes of the world are located on the Kola Peninsula and in Polar Siberia. These complexes have great potential for strategic raw materials, including rare earths. The purpose of this work was to estimate the rare earth potential for ore eudialyte in the Lovozero deposit. Thus, 120 eudialyte grains from eudialyte ores were studied by inductively coupled plasma mass spectrometry. In the ore eudialyte-bearing complex, the average value of the total amount of rare earths in eudialytes is 12 566 g/t, which is significantly higher than the total amount of rare earths in apatite from five deposits of the Khibiny Massif. Considering the many millions of tons of nepheline syenites of the eudialyte-bearing complex and the almost linear trend of rare-earth spectra for eudialyte, it can be concluded that the eudialyte deposit of the Lovozero Massif is extremely valuable.

中文翻译：

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Lovozero 稀土矿床 Eudialyte 复合物中稀土金属的地球化学

摘要 稀土元素属于战略金属范畴。这些战略原材料的最大矿床与碱金属碳酸盐岩地层有关。世界上最大的碱金属碳酸盐岩复合体位于科拉半岛和西伯利亚极地。这些复合体具有巨大的战略原材料潜力，包括稀土。这项工作的目的是估计 Lovozero 矿床中矿石 eudialyte 的稀土潜力。因此，通过电感耦合等离子体质谱法研究了来自真透析液矿石的 120 种真透析液颗粒。在含矿真透析液的复合物中，真透析液中稀土总量的平均值为12 566 g/t，明显高于Khibiny地块5个矿床磷灰石中稀土总量。