light ree enrichment 轻稀土富集
Placer gold samples are rich in light REE, the characteristics of REE contents of which partly inherited from hard rock gold.
砂金样品则以较富集轻稀土为特征，稀土元素含量继承了岩金的部分特点。
The total REE content in magnetite ore, minerals and red jasper is low with negative cerium and europium anomalies that are light REE enrichment characters.
磁铁矿矿石、矿物及红碧玉的稀土元素含量总量低、具负铈、负铕异常，属轻稀土富集型的特征。
Their REE abundance increases progressively and their light and heavy REE fractionations also have a general evolutionary trend of becoming more and more marked.
其REE丰度逐渐增高，轻、重稀土分馏程度表现为愈趋显著的总体演化趋势。
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