| 川藏公路帕隆藏布段沿线第四纪堆积体
的成因及其分布规律 |
| |
| 引用本文： | 袁广祥.川藏公路帕隆藏布段沿线第四纪堆积体
的成因及其分布规律[J].地质与勘探,2012,48(1):170-176. |
| |
| 作者姓名： | 袁广祥 |
| |
| 作者单位： | 华北水利水电学院资源与环境学院,河南郑州 |
| |
| 基金项目： | 国家自然科学基金项目(编号:40972199)和华北水利水电学院高层次人才科研启动项目(编号:200919)资助 |
| |
| 摘 要： | 摘 要] 川藏公路帕隆藏布段位于雅鲁藏布江的一级支流帕隆藏布流域,沿帕隆藏布及其支流修
建,穿越了多种成因类型的堆积体。通过对该地区的调查,对这些堆积体的成因类型及分布规律进行分
析。第四纪以来,青藏高原发育的多次冰川活动,使帕隆藏布流域保留了第四纪古冰川作用遗留下来的
古冰碛。在帕隆藏布主河谷及其支流河谷中广泛分布着河流搬运沉积的堆积,在宽谷地段尤为明显。
由于帕隆藏布流域地质灾害发育,形成了数量众多、规模巨大的地质灾害二次堆积体,包括泥石流堆积
体、崩塌滑坡堆积体、雪崩堆积体以及碎屑流堆积体。
|
| 关 键 词： | 川藏公路 松散堆积体 分布规律 |
| 收稿时间： | 2011/6/16 0:00:00 |
| 修稿时间： | 2011/9/24 0:00:00 |
Genesis of the Quaternary accumulations along the Palong section of the
Sichuan-Tibet Highway and Their Distribution Regularities |
| |
| YUAN Guang-xiang.Genesis of the Quaternary accumulations along the Palong section of the
Sichuan-Tibet Highway and Their Distribution Regularities[J].Geology and Prospecting,2012,48(1):170-176. |
| |
| Authors: | YUAN Guang-xiang |
| |
| Institution: | North China University of Water Conservancy and Electric Power,Zhengzhou, Henan |
| |
| Abstract: | Abstract:The Palong section of the Sichuan-Tibet highway is located north of the eastern Himalayan structural junction, along the Palong River and
its tributaries. It crosses through accumulations of various genesis. This paper is based on investigation to areas around this section to research the mechanism of these accumulations and their distribution regularities. Because of many times of glacial movements in the region since the Quaternary period, lots of ancient moraine deposits were preserved along the Palong River . The moraine deposits were made in Penultimate Glaciation, Last Glaciation, Neoglaciation and Little Ice Age, respectively. At the same time, lots of alluvial deposit can be found along the river and its tributaries, especially in basins, such as the Songzong basin, the Mimei basin, and the Dongjiu basin. Because of frequent geologic hazards, many types of loose accumulations were produced along the highway, such as debris flow, collapse, landslide, and snow avalanche. |
| |
| Keywords: | Sichuan-Tibet highway loose accumulations distribution regularity |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地质与勘探》浏览原始摘要信息 |
| 点击此处可从《地质与勘探》下载免费的PDF全文 |
|
