太阳系原始同位素组成是研究太阳系起源和演化的基础。
The isotopic composition of solar system is the base for studying the origin and evolution of the solar system.
微量元素和同位素地球比学资料表明黄椅山玄武岩的地幔源区的同位素组成与原始地幔近似；
All of the rare element and isotope characteristics of the Huangyishan basalts are similar to that of the original mantle of the Earth.
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