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。
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。
The source area of the Yellow River, above Tangnaihai, is the main runoff, producing region of this river.
黄河唐乃亥以上黄河河源区是黄河上游主要产水区。
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