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本文研究了燕鸥湖、西湖和基太湖湖泊沉积物的稀土地球化学。这些湖泊沉积物的稀土分布模式与菲尔德斯半岛第三纪火山岩非常相似，它们的物质来源是菲尔德斯半岛岛弧火山岩。湖泊沉积相与冰碛层稀土模式的差异，反映了它们经历的化学风化程度不同、粘土含量不同。Ｃｅ异常意味着每个湖泊沉积旋回结束的阶段气候是比较干燥的。湖泊沉积物的稀土含量和分布模式变化小，也意味着在中晚更新世时气候是比较干燥的。
This paper studies the rare earth geochemistry of the sediments of Yan’er Lake, West Lake and Ke Tai Lake. The patterns of rare earths distribution in these lake sediments are very similar to the Tertiary volcanics in the Fildes Peninsula. Their source of material is the volcanic rocks of the Fildes Peninsula. The difference of lanthanian patterns between lacustrine sediments and glacial moraines reflects the different degree of chemical weathering and the different clay contents. The anomaly of Ce means that the climate at the end of each lacustrine sedimentary cycle is drier. Changes in the rare earth elements and distribution patterns of lake sediments also mean that the climate is relatively dry during the mid-late Pleistocene.