A group of Quaternary gyttjor are discovered in Rimaqu basin in the Yellow River source area which formed the first terrace foundation, included gravel aleurite, aleurite and clay layer.
在黄河源区支流日玛曲河谷发现第四纪湖相沉积，以含砾粉砂、粉砂、粘土互层组合为特征，形成河流的第一阶地基座。
At present, the main materials in the tidal bank process in the area are the sediments on the tidal bank, and the sediments from the Zhangweixin River are the main material source for this area.
目前本区潮滩过程的主要物质是潮滩本身的沉积物，漳卫新河的来沙是本区的主要物源。
Methods: Sampling was carried out in natural about water source of the Yellow River and running water in HuiNong area.
方法：对惠农地区黄河水和自来水进行采样分析。
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