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| DOI | 10.1016/j.quaint.2006.02.011 |
| A lateglacial rock avalanche event, Tianchi Lake, Tien Shan, Xinjiang | |
| Yi, Chaolu; Zhu, Ling; Seong, Yeong Bae; Owen, Lewis A.; Finkel, Robert C. | |
| 发表日期 | 2006 |
| ISSN | 1040-6182 |
| EISSN | 1873-4553 |
| 起始页码 | 26 |
| 结束页码 | 31 |
| 卷号 | 154 |
| 英文摘要 | The genesis of a diamicton deposit that dams Tianchi Lake in the eastern Tien Shan, Xinjiang, China, has been debated for many years, and it has generally been considered to have been either the result of landsliding or glacial deposition. Using geomorphic, sedimentological and geochronological techniques we re-examined this deposit to help elucidate its origin. The outer margin of the deposit can be traced up the adjacent hillside, where a series of steps within the bedrock are present and likely represent landslide scars. Within the lake the deposit has an undulating surface. The deposit is unstratified, comprising angular monomictic clasts that coarsen upward into boulders, which armor the surface. All these features suggest that the deposit was formed by landsliding. Furthermore, Be-10 cosmogenic radionuclide surface exposure dating of boulders on the levee of the deposit show that the deposit probably formed during the Lateglacial, possibly at similar to 12 ka and is likely coincident to the Younger Dryas Slade. The sedimentological and geomorphic evidence support our view that the diamicton deposit is not of glacial origin, but was deposited by rock avalanching during the Lateglacial. (c) 2006 Elsevier Ltd and INQUA. All rights reserved. |
| 关键词 | COSMOGENIC NUCLIDESBE-10CALIFORNIAHIMALAYAGLACIATIONDEPOSITSVALLEY |
| 语种 | 英语 |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000240762100005 |
| 来源期刊 | QUATERNARY INTERNATIONAL
 |
| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/257446 |
| 推荐引用方式 GB/T 7714 | Yi, Chaolu,Zhu, Ling,Seong, Yeong Bae,et al. A lateglacial rock avalanche event, Tianchi Lake, Tien Shan, Xinjiang[J]. 中国科学院青藏高原研究所,2006,154. |
| APA | Yi, Chaolu,Zhu, Ling,Seong, Yeong Bae,Owen, Lewis A.,&Finkel, Robert C..(2006).A lateglacial rock avalanche event, Tianchi Lake, Tien Shan, Xinjiang.QUATERNARY INTERNATIONAL,154. |
| MLA | Yi, Chaolu,et al."A lateglacial rock avalanche event, Tianchi Lake, Tien Shan, Xinjiang".QUATERNARY INTERNATIONAL 154(2006). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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