大同盆地东大沟湖成化学沉积物样品的实验室分析结果表明，该化学物质是水菱镁矿。
The result of the laboratory analysis of the lacustrine chemical sediment samples from Dongdagou in the Datong Basin shows that the chemical matter is a hydromagnesite.
利用洞穴次生化学沉积物进行古环境重建是第四纪全球变化研究的一个热点，而碳氧稳定同位素是最重要的气候替代性指标。
The carbon and oxygen stable isotopes have been considered to be the most effectual proxy indexes in reconstructing the paleoclimate of Quaternary.
探险队采集的样品揭示了沉积物层之间化学成分及化石分布上的重大差异。
Samples recovered from the expedition revealed important differences in chemical composition and fossil distribution among the sediment layers.
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