稀土元素矿床是霞石正长质岩浆分异残余熔体的产物，侵位于岩体最高层位。

The REE enriched residual melt penetrated into the top of intrusion would be the products of nepheline syenite magma produced in the process of differentiation.

youdao

稀土元素矿床是霞石正长质岩浆分异残余熔体的产物，侵位于岩体最高层位。

The REE enriched residual melt penetrated into the top of intrusion would be the products of nepheline syenite magma produced in the process of differentiation.

youdao