| 晚更新世以来青藏高原多年冻土形成及演化的探讨 |
| |
| 引用本文： | 王绍令.晚更新世以来青藏高原多年冻土形成及演化的探讨[J].冰川冻土,1989,11(1):69-75,99,100. |
| |
| 作者姓名： | 王绍令 |
| |
| 作者单位： | 中国科学院兰州冰川冻土研究所 |
| |
| 摘 要： |
|
| 关 键 词： | 更新世 多年冻土 青藏高原 |
Formation and Evolution of Permafrost on the Qinghai-Xizang Plateau Since the late Pleistocene |
| |
| Wang Shading.Formation and Evolution of Permafrost on the Qinghai-Xizang Plateau Since the late Pleistocene[J].Journal of Glaciology and Geocryology,1989,11(1):69-75,99,100. |
| |
| Authors: | Wang Shading |
| |
| Abstract: | According to the distributive differences in space of permafrost and periglacial phenomena at present and ancient, for example, involutions, sand wedges, pingos, wind-blown sand, loess, ground ice and Permafrost table, and the data of radiocarbon 14C dating, the author reconstructed the palaeo geographical environment on the Qinghai-Xizang Plateau since late pleistocene.
The author thinks that the areal permafrost on the plateau at present was formed in latest pleistocene. And then the distributive range and thickness of the permafrost change with the fluctuation of air temperature.
The climate changes and the permafrost evolution on the Qinghai-Xizang plateau since the late pleistocene may be divided into four stages as follows: cold period in the latest pleistocene (35 000?0 000 y. B. P. ), transitional period in the early Holocene (10 000?000 y. B. P.), relative warm period in the middle Holocene (8000?3000 y. B. P.) and cold period in the late Holocene(since 3000 y. B. P.). |
| |
| Keywords: | permafrost formation evolution |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
