Planation Surfaces on the Tibet Plateau,China
文献类型：期刊论文
| 作者 | Xinbao Zhang（张信宝） ; Xiubin He（贺秀斌） ; Yangchun Wang（汪阳春） ; Yi Long（李勇） |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2008 |
| 卷号 | 5期号:4页码:310-317 |
| 关键词 | planation |
| 合作状况 | 其它 |
| 英文摘要 | A planation hypothesis is proposed to explain landform evolution of the Tibet Plateau. A denudation threshold (T), the maximum potential denudation rate for a certain type of rock, is introduced to explain the combined effects of lithology and tectonics on landform evolution. If the tectonic uplifting rate (U) is equal to or less than the threshold rate (U ≤ T), the tectonic uplifting and terrain denudation are in dynamic equilibrium, and landforms are in a steady state. The end product should be planation surfaces whether the original landforms are flat plains or deeply dissected mountains. If U > T, uplift and denudation are not able to reach a dynamic equilibrium state. The plateau surface is mostly underlain by soft rocks, such as the Mesozoic epimetamorphic argillites and Tertiary sedimentary rocks, while the mountain ranges comprise hard rocks, such as granite, gneiss and limestone. In soft rock regions, hills are low with a relative relief of mostly less than 100 m and the slopes are gentle at a gradient of <200. In contrast, hills can maintain steep slopes in hard rock regions. The Tibet Plateau has been under an equilibrium condition between tectonic uplifting and denudation except for the mountain ranges. The plateau might have reached the present altitudes before the Quaternary. |
| 语种 | 英语 |
| 公开日期 | 2010-11-05 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/2445]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） |
| 推荐引用方式 GB/T 7714 | Xinbao Zhang,Xiubin He,Yangchun Wang,et al. Planation Surfaces on the Tibet Plateau,China[J]. Journal of Mountain Science,2008,5(4):310-317. |
| APA | Xinbao Zhang,Xiubin He,Yangchun Wang,&Yi Long.(2008).Planation Surfaces on the Tibet Plateau,China.Journal of Mountain Science,5(4),310-317. |
| MLA | Xinbao Zhang,et al."Planation Surfaces on the Tibet Plateau,China".Journal of Mountain Science 5.4(2008):310-317. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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