【摘要】 贵德盆地作为青藏高原东北部的一个构造地貌单元,处于黄河上游中段,盆地中河流阶地发育,但是阶地的形成时代仍存在很大争议。选择贵德盆地黄河阶地作为研究对象,并从龙羊峡至松坝峡共采集阶地ESR测年样品10个,进行了年代测试,结果表明贵德盆地新构造运动具有间歇性、差异性特征。笔者还并分析了黄河贵德段演变特征。更多还原

【Abstract】 As a unit of the northeast Qinghai-Tibet Plateau tectonic landform,Guide basin is located in the middle stretch of the Yellow River upstream.The river terraces were developed well in the basin,but the age when the river terraces were born still exists much controversy.By testing and analyzing of 20 EsSR age data of river terrace,from LongYang Gorge to Songba Gorge,we preliminarily discuss the evolution of the Yellow River in Guide,the uplift of the Yellow River in Guide characterized by multi-period and heterogeneity.更多还原