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本文研究了 La、Ce、Nd、Yb 和 Y 在从绿片岩相到角闪岩相这一变质作用范围内的变质泥岩、变质粉砂岩和变质杂砂岩及其造岩矿物中的花岗岩化带内的分布情况。在进化变质阶段,基性片岩中稀土元素的丰度和比值均未起变化。发生深熔花岗岩化作用时,第一批熔出的铈族稀土元素富集起来。即使花岗岩熔融体的分异程度很低,也会从其中析出稀土元素,固定在角闪岩相变质泥岩中。变质岩的造岩矿物含铈族稀土元素30～60%,含钇族稀土元素50～100%。镧系元素的其余部分赋存在副矿物中。比较压力不同的变质相系表明,P(总)降低有助于稀土元素进入硅酸盐,特别是结构致密的硅酸盐.
In this paper, we investigate the effects of La, Ce, Nd, Yb and Y on the metamorphic mudstone, metamorphic siltstone and metamorphic sandy rock within the metamorphism of the metamorphic facies from greenschist to amphibolite The distribution of During the evolutionary metamorphism, neither the abundance nor the ratio of rare earth elements in the basic schist changed. In the event of deep-melt granitization, the first batch of cerium-rich rare earth elements is enriched. Even if the degree of differentiation of the granite melt is very low, rare earth elements are also precipitated therefrom and are fixed in the amphibolite facies metamorphic mudstone. The metamorphic rocks contain 30-60% of cerium group rare earth elements and 50-100% of yttrium group rare earth elements. The rest of the lanthanide occurs in the sub-minerals. Comparing different metamorphic facies shows that the decrease of P (total) is helpful for the REE to enter the silicate, especially the dense silicate.