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用等离子光谱测定了东太平洋9个深海沉积物样品的小于2μm组分及全岩的稀土元素，结果显示，小于2μm组分及全岩的稀土元素组成均受控于沉积物类型，而二者之间稀土元素组成的差异在钙质和硅质沉积物中呈现出相反的趋势。元素相关分析和稀土元素赋存状态分析表明，这种差异主要由沉积物物质组成的不同所致，表现在化学组成上，主要与MnO、Al_2O_3、Fe_2O_3、CaO含量的变化有关。大多数样品小于2μm组分的稀土组成与北美页岩类似，铈无明显异常，表明研究区粘土矿物主要来自陆源；个别样品小于2μm组分表现为铈负异常，反映出该组分中有较多的自生组分如钙质生物壳体或海水自生粘土矿物存在。
The contents of less than 2μm and total REE in nine deep-sea sediment samples from the eastern Pacific Ocean were measured by plasma spectroscopy. The results show that the REE compositions of less than 2μm and the whole rock are controlled by sediment types, and both The difference in REE composition shows the opposite trend in calcareous and siliceous sediments. Correlation analysis of elements and occurrence of rare earth elements shows that the difference is mainly caused by the different composition of sediment, which is manifested in the chemical composition, mainly related to the changes of MnO, Al 2 O 3, Fe 2 O 3 and CaO contents. The composition of rare earths less than 2μm for most samples is similar to that of North American shales. There is no obvious anomaly of cerium, indicating that the clay minerals in the study area mainly come from terrestrial sources. The individual samples with less than 2μm exhibit cerium negative anomalies, Many authigenic components such as calcareous biological shells or marine authigenic clay minerals exist.