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根据稳定同位素组成特点和微量元素组成及岩石形成演化的分析，对达拉布特型碱性花岗岩的源岩进行了初步探讨。指出其源岩具有混源特点：同时存在地幔物质和上地壳物质。结合岩石化学组成特点，源岩的化学组成可能与含基性、中基性火山岩的麻粒岩相岩石相似。
Based on the characteristics of stable isotopic composition, trace element composition and rock formation and evolution, the source rocks of Darabuite alkaline granite are discussed. It is pointed out that the source rocks have the characteristics of mixed source: there are both mantle and upper crustal materials. Based on the chemical composition of rocks, the chemical composition of the source rock may be similar to the granulite-facies rocks containing basic and medium-basic volcanic rocks.