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以黄河中游河套盆地-晋陕峡谷-三门峡盆地-三门峡峡谷-郑州邙山段黄河形成时代为主要研究内容,辅以黄河上游兴海盆地-共和盆地段黄河出现的时代来探讨统一黄河形成的时代。黄河上游兴海盆地共发育9级黄河阶地,ESR和OSL年代结果表明,最高三级阶地分别形成于200ka,100ka和80ka;中游河套盆地普遍发育一套湖相沉积,其中盆地东南端托克托台地郝家窑剖面湖相沉积的亮度和烧失量数据呈现一致的由下向上波动上升变化趋势,反映沉积物碳酸盐含量在不断增高,湖水盐度在增大,可能指示了湖泊处于封闭的环境,OSL结果显示湖相沉积结束的年代在100ka前后;三门峡盆地东端发育的最高黄河阶地年代为150ka,而指示古三门湖湖水外泄的河湖相白砂层结束时间是200ka。文章总结对比前人的研究成果,认为共和运动才是形成统一黄河的主因,尽管如此,上游兴海-共和河段及中游三门峡河段黄河(分别形成于200ka和200~150ka)出现要早于河套地区(100ka),而晋陕峡谷最晚贯通。也就是说,现今统一的黄河形成于100ka前后。
Taking the formation times of the Yellow River in the Hetao Basin of the middle reaches of the Yellow River, the Jin-Shan Gorge, the Sanmenxia Basin, the Sanmenxia Gorge and the Zhengzhou Dangshan Section as the main research contents and the era of the emergence of the Yellow River in the Xinghai Basin and Gonghe Basin in the upper reaches of the Yellow River, . In the upper reaches of the Yellow River, a total of 9 Yellow River terraces were developed in the Xinghai basin. The results of ESR and OSL indicate that the highest terraces were formed in 200ka, 100ka and 80ka, respectively. In the middle reaches of Hetao Basin, a lacustrine sedimentary system was developed. In the basin, The data of the brightness and the loss on the lacustrine sediments in the Haojiyao section of the platform show a consistent upward trend from bottom to top, indicating that the carbonate content in the sediment is continuously increasing and the salinity of the lake is increasing, which may indicate that the lake is in a closed . The results of OSL show that the lacustrine facies sedimentary age is around 100ka. The highest Yellow River terrace developed at the eastern tip of Sanmenxia Basin is 150ka, while the end of the white sand and lacustrine facies indicating the leakage of ancient Sanmen Lake is 200ka. The article summarizes and contrasts the previous research results that the Republican Movement is the main reason for the formation of a unified Yellow River. Nevertheless, the occurrence of the upper reaches of the Xinghai-Gonghe reach and the Sanmenxia reach of the Yellow River (formed respectively in 200ka and 200 ~ 150ka respectively) Hetao area (100ka), while the Jin Shan Shaan the latest through. In other words, today’s unified Yellow River formed around 100ka.