摘要
东昆仑托索湖地区第四纪晚期的湖相层中含丰富的孢粉化石．根据湖相沉积物各层段中不同类型的植物孢粉组合特征，大致可划分出５个植被演化阶段．从孢粉在这５个阶段中的垂向分布情况来看，本区第四纪晚期的古气候曾发生过多次波动．从变化趋势上看，早期气候相对较湿热，后期逐渐变得干冷；从变化幅度上看，早期气候波动不大，而晚期变化则相对较明显．
The palyno_fossils are abundant in the Quaternary lacustrine facies layer in the Tuosuohu area, Eastern Kunlun. These palyno_fossils can be classified as five stages of vegetation covers in line with different kinds of plant sporopollens that occurred in their corresponding layers and sections of the lacustrine facies sediments. In terms of the vertical distribution of the sporopollens in these five associations, the palaeo_climate in the Quaternary in this region once experienced several changes. In terms of the changing trend, the climate in the early period was relatively humid and hot, while that in the late period gradually turned dry and cold. In terms of changing magnitude, the climate in the early period did not change greatly, but that in the late period changed relatively dramatically.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1999年第2期121-124,共4页
Earth Science-Journal of China University of Geosciences
关键词
孢粉组合
古气候
托索湖
青海
晚第四纪
sporopollen association, palaeo_climate, Quaternary, Tuosuohu area, Qinghai Province.
