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中文摘要：
利用LA—ICP—MS对中国大陆科学钻探工程（CCSD）主孔部分榴辉岩进行的单矿物微区微量元素空间剖面研究，发现主量元素组成均一的石榴石和绿辉石具有明显的微量元素组成分带．石榴石边部表现出明显的中稀土元素（MREE）富集特征，绿辉石边部显著富集所有稀土元素（REE），磷灰石边部则富集重稀土元素（HREE）而低轻、中稀土元素．结合微量元素在榴辉岩各主要矿物中分配系数随温度、压力变化的实验研究，石榴石、绿辉石和磷灰石中的微量元素组成分带应反映榴辉岩在折返过程中可能经历的快速增温过程．
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