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| DOI | 10.1016/j.quaint.2006.02.016 |
| Fabric analysis of till clasts in the upper Urumqi River, Tian Shan, China | |
| Li, Dewen; Yi, Chaolu; Ma, Baoqi; Wang, Pengling; Ma, Chunmei; Cheng, Gongbi | |
| 发表日期 | 2006 |
| ISSN | 1040-6182 |
| 起始页码 | 19 |
| 结束页码 | 25 |
| 卷号 | 154 |
| 英文摘要 | In-situ measurement of clast fabric within till and other sediment was performed at locations in Hayisa (HY), Upper-Wangfeng (UW), Lower-Wangfeng (LW) and Balatigou (BL), in the upper Urumqi River in the Tian Shan of NW China. Subglacial tills have stronger fabric of both a-axis and a-b-plane than supraglacial till. This can be explained as a result from the different stress and transport histories of till clasts. The preferred orientation of a-axes of till fabrics intersect the former ice-flow direction at a sharp angle (62 +/- 16 degrees); whereas the a-b-plane, with its normal intersecting the former ice-flow at 84 +/- 4 degrees, is oriented approximately parallel to the ice flow direction. Thereby, subglacial relief appears to strongly influence the till fabric. In particular, the a-axis fabric is more sensitive to landforms than that of the a-b plane. In simple straight troughs, such as the Wangfeng Valley, fabric varies little. In the complex section of the trough, such as the Hayisa Lipolith, fabric characteristics are different at different sites of the Hayisa Drumlin. The fabric data can be used to understand glacial sedimentary processes in the study area. (c) 2006 Elsevier Ltd and INQUA. All rights reserved. |
| 关键词 | PERIGLACIAL COLLUVIUMGLACIGENIC SEDIMENTSTIEN-SHANDEFORMATIONORIENTATION |
| 语种 | 英语 |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000240762100004 |
| 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/257428 |
| 推荐引用方式 GB/T 7714 | Li, Dewen,Yi, Chaolu,Ma, Baoqi,et al. Fabric analysis of till clasts in the upper Urumqi River, Tian Shan, China[J]. 中国科学院青藏高原研究所,2006,154. |
| APA | Li, Dewen,Yi, Chaolu,Ma, Baoqi,Wang, Pengling,Ma, Chunmei,&Cheng, Gongbi.(2006).Fabric analysis of till clasts in the upper Urumqi River, Tian Shan, China.QUATERNARY INTERNATIONAL,154. |
| MLA | Li, Dewen,et al."Fabric analysis of till clasts in the upper Urumqi River, Tian Shan, China".QUATERNARY INTERNATIONAL 154(2006). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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