Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10064-010-0300-4 |
Effect of precipitation on the geological development of badlands in arid regions | |
Imumorin, Peter2; Azam, Shahid1 | |
通讯作者 | Azam, Shahid |
来源期刊 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
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ISSN | 1435-9529 |
出版年 | 2011 |
卷号 | 70期号:2页码:223-229 |
英文摘要 | The main objective of this paper was to study the effect of precipitation on the geological development of badlands in arid regions. Field observations and laboratory investigations were carried out to characterize the surface soils of the Avonlea badlands in southern Saskatchewan, Canada, which is currently experiencing a rapid development in infrastructure. Three distinct surface sediments were identified: an upper slope of cemented sandstone, a mid-slope on weathered mudrock and a relatively flat basal pediment. Each of these soils reacts differently to rainfall events. Precipitation results in grain size reduction which, together with the consistency limits, explains the water sensitivity of the soils; the fines increased by 16% in the cemented sandstone, 78% in the weathered mudrock and 33% in the basal pediment. Erosion susceptibility was highest in the basal pediment (2% clays) followed by cemented sandstone (cementation by 6% active clays) and then by weathered mudrock (cohesion due to the 40% clay). |
英文关键词 | Climate Avonlea Slopes Badlands Consistency limit Desiccation |
类型 | Article |
语种 | 英语 |
国家 | Canada |
收录类别 | SCI-E |
WOS记录号 | WOS:000293184600006 |
WOS关键词 | EROSION ; SOILS ; SPAIN |
WOS类目 | Engineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary |
WOS研究方向 | Engineering ; Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/167485 |
作者单位 | 1.Univ Regina, Fac Engn & Appl Sci, Regina, SK S4S 0A2, Canada; 2.SaskEnergy TransGas, Regina, SK S4P 4K5, Canada |
推荐引用方式 GB/T 7714 | Imumorin, Peter,Azam, Shahid. Effect of precipitation on the geological development of badlands in arid regions[J],2011,70(2):223-229. |
APA | Imumorin, Peter,&Azam, Shahid.(2011).Effect of precipitation on the geological development of badlands in arid regions.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,70(2),223-229. |
MLA | Imumorin, Peter,et al."Effect of precipitation on the geological development of badlands in arid regions".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 70.2(2011):223-229. |
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Effect of precipitat(547KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 |
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