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包裹体地球化学研究表明，四川冕宁稀土矿床中存在着岩浆成因的萤石、重晶石和方解石，它们的微量元素地球化学特征与热液成因对应矿物有明显差别：岩浆成因重晶石相对富集亲石元素，贫亲硫元素；无论是岩浆成因重晶石，还是萤石均明显富集挥发分。稀土元素地球化学研究显示，不同成因萤石、重晶石在稀土元素总量、ＬＲＥＥ／ＨＲＥＥ、（Ｌａ／Ｙｂ）Ｎ、δＥｕ及δＣｅ等一系列稀土元素地球化学参数上都存在明显的差异。该项研究还揭示了岩浆成因萤石、重晶石是在相对还原和酸性体系内结晶而成的。
The geochemistry of inclusions shows that there are magmatic fluorite, barite and calcite in the Mianning rare earth deposit in Sichuan Province. Their trace element geochemical characteristics are obviously different from those of the hydrothermal fluids. The magmatic barrenite is relatively rich Set lithophile elements, poor affinity sulfur element; whether it is magmatic barite, or fluorite were significantly enriched volatile. REE geochemical studies show that fluorites and barites with different genetic backgrounds have obvious differences in the total REE, LREE / HREE, (La / Yb) N, δEu and δCe and a series of REE geochemical parameters. The study also revealed that magmatic fluorite, barite crystallized in a relatively reduced and acidic system.