矾山岩体为一偏碱性超镁铁岩-正长岩杂岩体，其中蕴藏着中国北方最大的岩浆型磷灰石矿床。
Fanshan intrusive body is a complex body of meta-alkaline ultramafic rock-syenite. It hosts the biggest magmatic apatite deposit in north China.
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.
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.
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