青海扎陵湖和鄂陵湖盆地第四纪河湖相地层研究  

A study of the Quaternary lacustrine strata in Zhaling Lake and Eling Lake basin of Qinghai Province

作　　者：朱大岗[1] 孟宪刚[1] 邵兆刚[1] 韩建恩[1] 王津[1] 余佳[1] 吕荣平[1] 钱程[1] 

机构地区：[1]中国地质科学院地质力学研究所,国土资源部新构造运动与地质灾害重点实验室,北京100081

出　　处：《中国地质》2009年第6期1218-1232,共15页Geology in China

基　　金：中国地质调查局地质大调查项目“青藏高原新构造及晚新生代古大湖研究”(1212010610108);“青藏高原第三纪重点古湖泊环境演变序列”(1212010511902);“晚新生代构造气候变动对黄河水系演化影响研究”(1212010711705);国家自然科学基金项目(40572134)共同资助

摘　　要：通过对扎陵湖和鄂陵湖沿岸的湖积阶地中湖相沉积的野外地质调查和实测剖面,对分布于盆地内的第四纪早更新世—全新世湖相地层进行了详细的研究和划分,重新厘定了该区第四纪岩石地层单元,确立了生物地层和年代地层序列。建立了青海东南部地区第四纪早更新世—全新世湖相地层单位—黄河源群(QH),黄河源群是由第四系下更新统野牛沟组(Qp1y)、中更新统鄂陵湖组(Qp2e)、上更新统大野马岭组(Qp3d)和全新统黑河乡组(Qhh)等4个组组成。为青藏高原湖泊演化、气候变化、古地理变迁研究,以及第四纪地层的划分与对比等提供了新资料。Based on field geological work and section survey of the lacustrine strata in the lacustrine terrace around the bank of the Zhaling Lake and the Eling Lake,the authors studied and divided the strata,defined the rock and stratigraphic units,set up the biostratigraphic and chronostratigraphic sequence of Early Plestocene-Holocene epoch in the study area.The Huangheyuan（QH）stratigraphic unit and the Early Pleistocene-Holocene lacustrine strata in southeastern Qinghai were established.The Yellow River Source Group（QH）stratigraphic unit was divided into four formations,i.e.,the Yeniugou Formation（Qp1y）of Lower Pleistocene,the Elinghu Formation（Qp2e）of Middle Pleistocene,the Dayemaling Formation（Qp3d）of Upper Pleistocene and the Heihexiang Formation（Qhh）of Holocene.The results provide new data for the lake evolution in Qinghai-Tibet plateau,the climate variation,the paleogeographic changes,and the division and correlation of Quaternary strata in Qinghai-Tibet plateau.

关 键 词：青海扎陵湖和鄂陵湖 更新世—全新世 湖相地层 黄河源群 

分 类 号：P534.63[天文地球—第四纪地质学]