论文部分内容阅读
青藏高原东北边缘地区是指以祁连山东段为主体的祁连、昆仑和秦岭三大山系交汇地段。本文根据野外观察和放射性同位素测年资料研究了现代高山冰缘带特征及晚第四纪古冰缘现象,对主玉木冰期以来冰缘环境发展作了探讨。文中引用C~(14)年龄是由兰州大学C~(14)实验室和中国科学院地球化学研究所C~(14)实验室测定的。
The northeastern margin of the Qinghai-Tibet Plateau refers to the intersection of the three major mountain ranges of the Qilian, Kunlun and Qinling Mountains, with the eastern section of the Qilian Mountains as the main body. Based on the field observations and radioactive isotope dating data, the characteristics of the modern alpine ice margin and the paleoclimate in the late Quaternary have been studied, and the development of the ice margin environment has been discussed. The C ~ (14) age quoted in this paper is determined by C ~ (14) Laboratory of Lanzhou University and C ~ (14) Laboratory of Institute of Geochemistry, Chinese Academy of Sciences.