Structure and formation process of cryoconite granules on Urumqi glacier No. 1, Tien Shan, China
文献类型：期刊论文
| 作者 | Takeuchi, Nozomu1; Nishiyama, Hiromu1; Li, Zhongqin2 |
| 刊名 | ANNALS OF GLACIOLOGY
 |
| 出版日期 | 2010 |
| 卷号 | 51期号:56页码:9-14 |
| ISSN号 | 0260-3055 |
| 通讯作者 | Takeuchi, Nozomu(ntakeuch@faculty.chiba-u.jp) |
| 英文摘要 | Cryoconite granules are dark-colored spherical aggregates of organic and inorganic material on glacier ice, and are commonly observed on glaciers the world over. The structure of cryoconite granules on Urumqi glacier No. 1, Tien Shan, China, was analyzed. Granules were distributed over the entire ice surface of the ablation area, and ranged in size from 0.26 to 3.5 mm (mean 1.1 mm). The granule surface was densely covered with filamentous cyanobacteria. Microscopy of a thin section revealed various inner structures. Most granules had concentric layers of dense organic matter, which are probably derived from annual growth of the granules by the activity of cyanobacteria. The number of layers averaged 3.5 and ranged up to 7, which is likely to indicate their mean and maximum growth ages, respectively. Some granules contained two or more subgranules, showing that small granules had combined and enlarged. Such structures suggest that granule formation was mainly due to the activity of filamentous cyanobacteria, and that the granules repeatedly grew and disintegrated over a cycle of several years on the glacier. |
| 收录类别 | SCI |
| WOS关键词 | SURFACE DUST ; MOUNTAINS |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000290290600002 |
| 出版者 | INT GLACIOL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556398 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Takeuchi, Nozomu |
| 作者单位 | 1.Chiba Univ, Grad Sch Sci, Dept Earth Sci, Inage Ku, Chiba 2638522, Japan 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Tien Shan Glaciol Stn, State Key Lab Cryosphere, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Takeuchi, Nozomu,Nishiyama, Hiromu,Li, Zhongqin. Structure and formation process of cryoconite granules on Urumqi glacier No. 1, Tien Shan, China[J]. ANNALS OF GLACIOLOGY,2010,51(56):9-14. |
| APA | Takeuchi, Nozomu,Nishiyama, Hiromu,&Li, Zhongqin.(2010).Structure and formation process of cryoconite granules on Urumqi glacier No. 1, Tien Shan, China.ANNALS OF GLACIOLOGY,51(56),9-14. |
| MLA | Takeuchi, Nozomu,et al."Structure and formation process of cryoconite granules on Urumqi glacier No. 1, Tien Shan, China".ANNALS OF GLACIOLOGY 51.56(2010):9-14. |
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来源：寒区旱区环境与工程研究所
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