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在陕西关中西安与咸阳地区间的河流阶地沉积剖面中采集到一批古菱齿象 披毛犀化石 ,在研究化石标本的基础上 ,作了14 C年代测定及孢粉分析 ,研究结果揭示了该区末次冰期极盛期的气候环境特征及其演变过程 :大约在距今 2 0ka时 ,气候温凉偏湿 ,适于古菱齿象 披毛犀动物群的生存 ,稍后气候明显变干、变冷 ,许多动物难于适应而大量死亡 .事实说明 ,末次冰期极盛期似乎存在气候环境的冷干、凉湿颤动 .其间的凉湿阶段似反映了北半球高纬地区Henrich事件在这一地区的记录 ,表明了黄土高原与极地、高纬地区的遥相关关系
A series of paleo-rhinoceros fossils were collected from the river terrace sedimentary section between Xi’an and Xianyang in Shaanxi Province. Based on the study of fossil specimens, the 14C dating and sporo-pollen analysis were carried out. The results revealed that Climatic and environmental characteristics and evolution of the area at the peak of the last glacial period: The climate is cool and wet at about 20 ka from now on, and is suitable for the survival of ancient rhinoceros, , Cold, many animals are difficult to adapt to a large number of deaths.In fact, the climax of the last ice age seems to have cold and humid climate, the wet and cool phase may reflect the Henrich event in the high latitudes of the northern hemisphere in this region The records show the teleconnection between the Loess Plateau and the polar regions and high latitudes