| 中国第四纪亚冰期划分之商讨 |
| |
| 引用本文： | 孙殿卿.中国第四纪亚冰期划分之商讨[J].第四纪研究,1989,9(1):3. |
| |
| 作者姓名： | 孙殿卿 |
| |
| 作者单位： | 地质矿产部地质力学研究所 |
| |
| 摘 要： | 本文举例概述中国第四纪冰川流行之证据,包括漂砾、冰溜面及冰川刮痕、表皮构造、冰碛和冰水堆积、冰期时期冰川条痕砾和冰蚀地形等以及动植物遗迹。关于亚冰期之划分及其依据,有的地区亚冰期划分次数最多者可有五、六次。主要依据是:冰碛、冰水沉积特征与其所在地层层位以及新、老冰川地貌的叠加与其干扰现象。
|
| 关 键 词： | 亚冰期 漂砾 冰溜面和冰川刮痕 表皮构造 |
ON DISCUSSION OF QUATERNARY SUB-GLACIATIONS IN CHINA |
| |
| Institution: | Institute of Geomechanics, Ministry of Geology and Mineral Resources |
| |
| Abstract: | Glaciological research has been going on in China for more than half century. The pioneer work of professor Li Siguang (J.S. Lee)in the Datong Basin, northern Shanxi, and at the eastern foot of Taihang Range brought limelight on the Quaternary research in China. Since the establishment of the People's Republic of China, extensive geological and geographic work has been carried on throughout whole country. In many places has been amassed large amount of evidences for Quaternary ice-action, such as glacial erratics, glacial pavements and glacial striations on bed rocks, glacial tectonics, moraines, fluvio-glacial deposits, periglacial phenomena, glacial landforms and the relics of plants and animals in cold climate. It is found so far that only valley and piedmont glaciers occured in China in the Great Ice Age, except in the Large and Small Xingan Ranges and the Qinghai-Xizang (Tibet)Plateau. According to the relics of Quaternary glaciation in different localities, five sub-glaciations and one cold period can be recognized. The evidence for division of sub-glaciations mainly depends on the characteristics of the glacial deposits and their stratigraphic horizons, the occurring order of ice sculptural landforms and the mutural relations of their joining. The Lushan Mt. in the lower Yangtze valley might be the first place of dividing into sub-glaciations. Subsequent divisions were carried on in the eastern foot of Taihang Range, the northwestern Sichuan, the Yunnan-Guizhou-Sichuan borders etc. The correlation of several sub-glaciations with those of different regions is only tentatively offered in the interest of further research. The final issue can only be settled by more extensive observation, wide collection, detailed detection and regorous comparison. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《第四纪研究》浏览原始摘要信息 |
| 点击此处可从《第四纪研究》下载免费的PDF全文 |
|
