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首次在西藏阿里札达盆地上新世河湖相沉积地层中发现了鼠兔类牙齿化石,对鼠兔类牙齿化石的基本特征进行了描述,并在同一层位中采集了大量孢粉、古动物和古植物化石。结合区域地质特征,产出鼠兔类牙齿化石地层的古地磁、ESR测年资料,沉积学特征等的简要分析,认为札达盆地鼠兔类的]化迁徙与上新世时气候由温暖湿润向寒冷潮湿—温和干旱的变化有关。显然,这一发现有助于认识青藏高原新近纪上新世的生物]化、气候变化和构造活动,并为研究青藏高原新近纪以来的生物进化、湖泊与河流]化、气候变化、古地理与古环境变迁和古近系、新近系、第四系地层划分等提供了新资料。
For the first time, the rabbit fossil teeth were found in the sedimentary strata of the Upper Pleistocene in the Arid Zanda Basin, Tibet. The basic characteristics of the fossil teeth of the rabbit were described. A large amount of sporopollen, ancient Animals and ancient plant fossils. Based on the analysis of the regional geological characteristics, the paleomagnetic and ESR dating data and sedimentary characteristics of the rat fossil stratum, the migratory and pliocene climate in the Zanda Basin is characterized by warm and humid climate To the cold damp - mild drought related changes. Obviously, this discovery helps to recognize the recent Pliocene biological and chemical changes, tectonic activities and the tectonic activities of the Qinghai-Tibet Plateau. It is also necessary to study the biological evolution, lakes and rivers in the Qinghai-Tibet Plateau since the Neo-Cenozoic, climate change, palaeogeography And paleoenvironmental changes and Paleogene, Neogene, Quaternary stratigraphic division provided new information.