秦岭东段主要原生金红石矿床均受不同程度的变质作用形成。通过对该区四种主要金红石矿床稀土元素地球化学特征的分析及对含矿原岩的恢复，认为本区不同类型金红石矿床的∑ＲＥＥ、ＬＲＥＥ／ＨＲＥＥ、δＥｕ值等特征有很大差别，并显示出了本区金红石矿床成因的多样性和复杂性；稀土元素与Ｔｉ的富集关系的研究结果表明：任何一种类型矿床中，稀土越富集，轻、重稀土分异程度越高，δＥｕ值越大，越有利于Ｔｉ的富集。 The main primary rutile deposits in the eastern part of Qinling are affected by different degrees of metamorphism. Based on the analysis of the REE geochemical characteristics of the four main rutile deposits and the recovery of the ore-bearing rocks, the characteristics of ΣREE, LREE / HREE and δEu of different types of rutile deposits in this area are considered to be quite different The results show that: in any type of deposit, the richer the rare earths, the higher the degree of light and heavy rare earth differentiation, The larger the value of δEu, the better the enrichment of Ti.