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| 祁连山中段新冰期以来的冰川序列及环境变化 | |
| 引用本文： | 杨威,周尚哲,CHIYUKI Narama,王孝理,王杰.祁连山中段新冰期以来的冰川序列及环境变化[J].兰州大学学报(自然科学版),2006,42(6):12-15. |
| 作者姓名： | 杨威 周尚哲 CHIYUKI Narama 王孝理 王杰 |
| 作者单位： | 1. 兰州大学,资源环境学院,甘肃,兰州,730000 2. 兰州大学,资源环境学院,甘肃,兰州,730000;华南师范大学,地理系,广东,广州,510080 3. 名古屋大学,地球水循环研究所,日本,名古屋,464-8601 |
| 摘 要： | 通过对七一冰川及其附近冰碛垅形态、植被覆盖、岩石种类及Schmidt hammer反弹R值、剖面内部组成的观测、对比和分析,认为新冰期时冰川扩张到海拔4 km处,较现代冰川末端降低约300 m,冰川前进约2 km左右.小冰期的三列冰碛垅形成时间间隔基本相同,规模依次减小,表明小冰期的三次冷期中以15世纪最冷,持续时间最长,而17世纪次之,19世纪持续时间最短. |
| 关 键 词： | 七一冰川 冰碛垅 小冰期 |
| 文章编号： | 0455-2059（2006）06-0012-04 |
| 收稿时间： | 04 6 2005 12:00AM |
| 修稿时间： | 2005-04-062006-05-19 |
The stage-division and environmental significance of moraine in Qiyi glacier, Qilian Shan |
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| YANG Wei,ZHOU Shang-zhe,CHIYUKI Narama,WANG Xiao-li,WANG Jie.The stage-division and environmental significance of moraine in Qiyi glacier, Qilian Shan[J].Journal of Lanzhou University(Natural Science),2006,42(6):12-15. | |
| Authors: | YANG Wei ZHOU Shang-zhe CHIYUKI Narama WANG Xiao-li WANG Jie |
| Institution: | 1. School of Resources and Environmental Sciences, Lanzhou University, Lanzhou 730000, China; 2. Department of Geography, South China Normal University, Guangzhou 510080, China; 3. Department of Environmental Studies, Nagoya University, Nagoya 494-8601, Japan |
| Abstract: | The observations and comparisons of the features of debris, lichens, vegetation, soil weathering and R-values of Schmidt hammer indicate that the 7.1 glacier had advanced about 2 km and reached 4 km in the Neoglaciation. During the little ice age, three end moraines were formed in sequence, which demonstrates that the temperature in the 15th century was lowest and might have lasted a much longer time in little ice age. Moreover, the temperature in the 17th century was colder than that in the 19th century. |
| Keywords: | Qiyi glacier moraine successions little ice age |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |